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Where this information is recorded the accuracy of the perimeter can be assumed to be 1:250,000 for GPS, 1:1,000,000 for MODIS and 1:25,000 for Landsat.\n\nThe User may: 3.1 Create new representations of these Data; 3.2 Select or arrange all of, or portions or features from these Data; and 3.3 Process, analyse or otherwise use these Data in the development of derived products; 4. The User may sell, lease, distribute and sublicense the Data contained in derived works and products referred to in Section 3. Data is not licensed for redistribution via the Internet without modification as noted in Section 3. Users are encouraged to come to the originating source to access the most current version of the data. 5. When using the Data in new representations, derived works and products, the User shall reference the source of information as: © 2002-12. Government of NWT with permission from Environment and Natural Resources, NWT. 6. The Data is provided on an 'as is' basis and NWT makes no guarantees, representations or warranties respecting the Data, either expressed or implied, arising by law or otherwise, including but not limited to, effectiveness, completeness, accuracy or fitness for a particular purpose. 7. NWT shall not be liable in respect of any claim, demand or action, irrespective of the nature of the cause of the claim, demand or action alleging any loss, injury or damages, direct or indirect, which may result from the User's use or possession of the Data. NWT shall not be liable in any way for loss of revenue or contracts, or any other consequential loss of any kind resulting from any defect in the Data. 8. The User shall indemnify and save harmless NWT and its Ministers, officers, employees and agents from and against any claim, demand or action, irrespective of the nature of the cause of the claim, demand or action, alleging loss, costs, expenses, damages or injuries (including injuries resulting in death) arising out of the User's use or possession of the Data. 9. The parties agree that this agreement does not restrict NWT in any way from authorizing other parties to use the Data in the same kind of products or in different products. 10. 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"capabilities": "Map,Query", "supportsStatistics": false, "supportsAdvancedQueries": false, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": false, "supportsHavingClause": false, "supportsCountDistinct": false, "supportsOrderBy": false, "supportsDistinct": false, "supportsPagination": false, "supportsTrueCurve": false, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": false }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 83, "name": "Level II EcoRegions", "type": "Feature Layer", "description": "Please refer to the following website for additional information including the reports for each Level II Ecoregion (i.e. Taiga Plains, Taiga Shield, Cordillera, Southern Arctic, Northern Arctic (coming soon)).http://www.enr.gov.nt.ca/_live/pages/wpPages/Ecosystem_Classification.aspxATTRIBUTESOne set of variables aggregated under climate data was derived from Level III ecoregion descriptions; the remainder of the attribute list information was derived from Level IV ecoregion descriptions. For non-climate information, the entire ecoregion description and all photos and captions were reviewed to develop the best abstraction of each attribute. Attribute abstraction was completed by the D.Downing (2013) who prepared all of the Level IV ecoregion descriptions and is familiar with the landscapes. There is a certain amount of repetition between some of the categories e.g. glaciers may be represented under surficial geology and surface materials as ice and under permafrost as glaciers. Climate dataClimate information is derived from Level III ecoregion descriptions, specifically the descriptive section titled \u201cClimate\u201d,and assigned to all Level IV ecoregions nested within a Level III ecoregion. For example, the Taiga Plains Low Subarctic Level III ecoregion includes 14 Level IV ecoregions. All 14 of these ecoregions are assigned the same value or value range for mean annual temperature, precipitation and the other climatic variables listed below. Climate attributes are assigned in this manner because there is insufficient climatic information to describe individual climatic parameters for Level IV ecoregions. The information presented for Level III ecoregions in the above-listed reports was largely derived from models produced at the national ecodistrict level by Agriculture and Agri-Food Canada, which are generalizations derived from very sparsely distributed long-term weather station data.Attribute values included under this general category are typically expressed as numeric ranges, reflecting the degree of inherent variability (geographic and year-to-year) within Level III ecoregions. Attributes include the following:CLIMATE ATTRIBUTESATTRIBUTEDESCRIPTIONMATMean annual temperature, expressed as degrees CelsiusMAPMean annual precipitation, expressed as mm of total rain and snowM_JANMean temperature in the coldest month, typically January (or February where designated by a value followed by (Feb)), expressed as degrees CelsiusM_JULMean temperature in the warmest month (July), expressed as degrees CelsiusSRAnnAverage annual solar radiation, expressed as megajoules per square metre per daySRJunSolar radiation in June (longest days), expressed as megajoules per square metre per daySRDecSolar radiation in December (shortest days), expressed as megajoules per square metre per day Surficial geologyThree dataset attributes (Surfgeo1, Surfgeo2, Surfgeo3) are included under the general category of surficial geology. The attribute values and their definitions are provided below and in the worksheet titled \u201csurficial geology\u201d in the Excel® workbook titled \u201cNWT_ecoregion_searchable_attributes.xls\u201d.Most of the attribute values and their definitions are as presented by Agriculture and Agri-foods Canada (website: http://sis.agr.gc.ca/cansis/nsdb/ecostrat/1999report/data_tables.html. Attribute value definitions for colluvium were augmented by adding a reference to highly weathered tills, mostly related to areas in the Northern and Southern Arctic considered by some researchers to be recently unglaciated. A variable referencing weathered rock (RW) was also added as it is a significant component in some areas. Changes are shown in italics and coloured red in the table below. The first and second variables (Surfgeo1, Surfgeo2) may be codominant or the second subordinate to the first. In most cases, Surfgeo3was a minor component of the ecoregion but some ecoregions were highly complex and all three variables were judged to be of equal importance. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.SURFICIAL GEOLOGYAttribute ValueDESCRIPTIONIGlaciers: Ice and minor morainal debris.AAlluvial Deposits: stratified silt, sand, clay, and gravel; floodplain, delta, and fan deposits; in places overlies and includes glaciofluvial deposits.mMMarine Mud: Fluid silty clay and clayey silt: deposited as quiet water sediments.sMMarine Sand: Sand and locally gravel; deposited as sheet sands, lags, and beaches.mLLacustrine Mud: Fluid silty clay and clayey silt: deposited as quiet water sediments.sLLacustrine Sand: Sand and locally gravel; deposited as sheet sands, lags, and beaches.EEolian Deposits: sand and minor silt: dunes, blowouts, and undulating plains: In most places overlies deltaic sediments, coarse lacustrine sediments, or glaciofluvial deposits.OOrganic deposits: peat, muck and minor inorganic sediments; large bog, fen, and swamp areas where organic fill masks underlying surficial materials; generally >2 m thickbCColluvial Blocks: Blocks, and rubble with sand and silt; derived from crystalline bedrock, medium grade metamorphic substrate, and cemented sandstone.rCColluvial Rubble:Rubble and silt; derived from carbonate and consolidated fine classic sedimentary rock substrate. Includes highly weathered tillsfCColluvial Fines: Silt, clay, and fine sand: derived from substrate weakly consolidated shale and siltstone substrate. Includes highly weathered tillssCColluvial Sand: Sand and gravel; derived from poorly lithified sandstone and conglomerate substrate. Includes highly weathered tills.L:fMLacustrine Fine Grained: Fine grained silt and clay, locally containing stones: deposited as quiet water sediments.L:cLLacustrine Coarse Grained: sand, silt, and gravel: deposited as deltas, sheet sands and lag deposits.M:fMMarine Fine Grained: Dominantly silt and clay, locally containing stones; deposited as a quiet water sediment.M:cMMarine Coarse Grained: Sand and gravel: deposited as sheet sands, deltas, and extensive flights of beaches.M:MvLag: Sand, gravel, and pockets of fine sediment; thin to discontinued sediment veneer and residual lag developed during marine submergence; includes areas of washed till and rock.GpGlaciofluvial Plain: Sand and gravel: deposited as outwash sheets, valley trains, and terrace deposits.GxGlaciofluvial Complex: Sand and gravel and locally diamicton: undifferentiated ice contact stratified drift, and outwash; locally includes till and rock.TbTill Blanket: Thick and continuous till.TvTill Veneer: Thin and discontinuous till: may include areas of rock outcrop.TvbTill veneer and blanket complex:VQuarternary Volcanics: consolidated lava, breccia and tephra: dominantly basaltic and andesitic in composition; includes flows, volcanic piles and cinder conesRaAlpine Complexes: rock, colluvium, and till: rock and Quarternary deposits complex in an area, characterized by alpine and glacial landforms.RUndivided: rock with minor Quaternary deposits. Includes unweathered and weathered rock.RWWeathered bedrock \u2013 usually shales and sandstones.Surface materialsTwo attribute fields (Surfmat1, Surfmat2) are included under the general category of surface materials. This category is very general and reflects surficial geology categories. Refer to the table below.SURFACE MATERIALSAttribute ValueDESCRIPTIONICICE and SNOWGlacial ice and permanent snowORORGANIC SOILContains > 30% organic matter as measured by weightROROCKRock undifferentiatedSOMINERAL SOILPredominantly mineral particles: contains < 30% organic matter as measured by weightURURBANUrban areas. Note that only a few major urban area polygons are included on SLC source maps, therefore, do not use for tabulating total urban coverage. Not used in NWT attribute list. LandformOne attribute field (Landform) is included. This is the only attribute field that exceeds 8 alphanumeric characters (it is 10 characters in length). The landform reflects the predominant landscape feature within the ecoregion and is taken directly from the three-part name for the ecoregion, which reflects its geographic location, its major landform, and its affinity with climate(e.g., KellerPlainLSEcoregion). The attribute values used for this project are more comprehensive than the options provided under the CanSIS classification system. landformAttribute ValueDESCRIPTIONCoastlandsnarrow linear areas parallel to the seacoast that are influenced by both oceanic and terrestrial processes and that include a variety of landforms.Cst PlainCoastal Plain: see plain.Deltaan alluvial sediment deposit at the mouth of a river, often somewhat triangular in form, frequently flooded and nearly level. High water tables, abandoned channels and oxbow lakes and periodic nutrient-rich sediment deposition are important ecological factors.Foothillslow hills at the base of mountains. For purposes of delineation in the Northwest Territories, an arbitrary elevation range of 200-800 m ASL is used and is reasonably well correlated with breaks in slope between the valleys and the foothills and between the foothills and the mountains. Incised stream channels, uneven topography that creates variable microenvironments, and steeper slopes than the surrounding lowlands and plains are typical. Hillsprominences rising generally no more than about 500 m above the surrounding areas. They may have gentle to abrupt slopes; slope steepness and aspect along with bedrock substrates near or at the mineral soil surface can strongly influence vegetation development. Drainage patterns are well developed relative to those of the surrounding lower-lying areas. In the Northern Arctic, this term and highlands are used to name ecoregions with variable topography that are markedly higher than the surrounding terrain and that often have distinctive bedrock and surficial geology features. Islandsland masses completely surrounded by water.Lowlandan area of low relief at the lower ranges of regional elevation; it receives water inputs from adjacent higher terrain. It is typically imperfectly- to poorly-drained, has a higher proportion of wetlands than other landscape types and is nearly level. Drainage patterns are poorly defined.Mountainsareas that display large differences in relief, usually over 600 m. Bedrock exposures, steep slopes and deeply incised parallel river channels are characteristic, climatic zonation occurs as a result of elevation changes, and microenvironments are highly variable. A range is a row or chain of mountains separated from other mountain ranges by passes or rivers; a ridge is an elongate crest or a linear series of crests. Peninsulaa land mass surrounded on three sides by waterPlainan extensive area that is typically level, gently sloping or hummocky and that can occur at low to high elevations, the latter often as part of high elevation plateaus. It is referred to as a coastal plainwhen it borders the coastline and is influenced by marine and terrestrial factors.Plateauan extensive level to gently sloping upland area at a higher elevation than its surroundings, often underlain by horizontally-oriented bedrock strata. They can be deeply eroded by streams.Rangesee mountains.LANDFORM(cont.)Attribute ValueDESCRIPTIONSlopesareas with variable local relief underlain by a regionally inclined surfaceUplandgeneral term for an area that is higher than the surrounding area, sometimes several hundred metres higher, that are not plateaus or hills. Uplands usually have undulating to hummocky terrain, a higher proportion of moderately well- to well-drained sites than lowlands or plains and a lower proportion of wetlands. Drainage patterns tend to be dendritic (resembling tree roots).Valleyany low-lying area bounded by plateaus, mountains, foothills or plains and traversed by a river.Surface formTwo attribute fields (Surffrm1, Surffrm2) are provided. The table below summarizes 31 classes provided by Agriculture and Agri-foods Canada at the website address referenced above under Surficial Geology. As for surficial geology, the first and second attributes reflect the dominant surface forms referenced in the written descriptions. A one-to-one correspondence between the ecoregion description and the supplied list of surface forms was not always possible; these decisions were most challenging in mountainous areas, where the value for \u201cridged\u201dwas often used to capture the concept of rugged bedrock-controlled terrain in addition to the provided definition that mostly references glacial features. Wetland forms were sometimes included as the second component (Surffrm2) even if they did not cover a majority of the ecoregion because of their significance or uniqueness. For example, one wetland form (snowpatch fens) was added to the list of attributes provided by Agriculture and Agri-foods Canada and referenced in two High Arctic-oceanic ecoregions. The changes are shown in italics and coloured red in the table below. Many of the wetland forms (B04 and most of the entries below that value) were not present in the NWT, but are included here for completeness. SURFACE FORMAttribute ValueDESCRIPTIONDDissectedA dissected (or gullied) pattern providing external drainage for an area.HHummocky (or irregular)A very complex sequence of slopes extending from somewhat rounded concavities (or swales) of various sizes to irregular conical knolls (or knobs) and short discontinuous ridges; there is a general lack of concordance between knolls and swales. Slopes are generally 4-70%. Examples are hummocky moraines and hummocky fluvioglacial landforms.IInclinedA sloping, unidirectional surface with a generally constant slope unbroken by marked irregularity or gullies; a weakly developed dissected pattern provides external drainage for the local area. Slopes are 2-70%; the form of inclined slopes is not related to the initial mode of origin of the underlying material.KKnoll and kettleA chaotic sequence of knolls and kettles (or sloughs), which occupies 15-20% of an area and has no external drainage. Slopes are generally >3%. Examples are morainal plains and hill lands.LLevelA flat or very gently sloping, unidirectional surface with a generally constant slope unbroken by marked elevations and depressions. Slopes are generally <2%. Examples are floodplains and lake plains.MRollingA very regular sequence of moderate slopes extending from rounded and, in some places, confined concave depressions to broad, rounded convexities producing a wavelike pattern of moderate relief. Slope gradients are generally >5% but may be less. This surface form is usually controlled by the underlying bedrock.RRidgedA long, narrow elevation of the surface, usually sharp crested with steep sides; ridges may be parallel, subparallel, or intersecting. Examples are eskers, crevasse fillings, washboard moraines and some drumlins. Includes pronounced terrain associated with rugged bedrock-controlled hill and mountain systems.SSteepErosional slopes of greater than 70% (35°), present on both consolidated and unconsolidated materials. The form of a steep erosional slope on unconsolidated materials is not related to the initial mode of origin of the underlying material. An example is an escarpment.TTerracedScarp face and the horizontal or gently inclined surface (or tread) above it. An example is an alluvial terrace.SURFACE FORM(cont.)Attribute ValueDESCRIPTIONUUndulatingA very regular sequence of gentle slopes that extends from rounded and, in some places, confined concavities to broad, rounded convexities producing a wavelike pattern of low local relief. Slope length is generally less than 0.8 km and the dominant gradient of slopes is usually 2-5%. The terrain lacks an external drainage pattern. Examples are some ground moraines and lacustrine material of varying textures.B04Domed bogA large bog (diameter usually >500 m) with a convex surface rising several metres above the surrounding terrain. The centre usually drains in all directions; small crescentic pools commonly form around the highest point; a concentric pattern is formed if the highest point is in the centre, while an eccentric pattern is formed if the highest point is off-centre. Peat development is usually >3 m.B05Polygonal peat plateau bogA perennially frozen bog rising approximately 1 m above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a nonpermafrost environment.B07Peat plateau bogA bog composed of perennially frozen peat rising abruptly about 1 m from the surrounding unfrozen fen. The surface is relatively flat and even, and commonly covers large areas. The peat was originally deposited in a nonpermafrost environment and is associated in many places with collapse scar bogs or fens.B09Atlantic plateau bogA bog with a flat to undulating surface raised above the surrounding terrain. The bog edges commonly slope steeply downwards to the mineral soil terrain. Large pools scattered on the bog reach depths of 2-4 m.B13Basin bogA bog situated in a basin with essentially closed drainage which receives water from precipitation and runoff from the immediate surroundings. The surface of the bog is flat with peat generally deepest at the centre.B14Flat bogA bog having a flat, featureless surface and occurring in broad, poorly defined depressions. The depth of peat is generally uniform.B15String bogA pattern of narrow (2-3 m wide), low (<1 m high) ridges oriented at right angles to the direction of drainage; wet depressions or pools occur between the ridges. The water and peat are very low in nutrients because the water has been derived from other ombrotrophic wetlands. The peat thickness is >1 m.B16Blanket bogA bog consisting of extensive peat deposits that occur more or less uniformly over gently sloping hills and valleys. The peat thickness is usually < 2 m.B18Slope bogA bog occurring in areas of high rainfall on appreciably sloping land surfaces. The bog is fed by rainwater and by water draining from other nutrient-poor peatlands. The peat may exceed 1 m in thickness.B19Veneer bogA bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drainways during peak runoff. Peat thickness is usually <1.5 m.B20Lowland polygon bogA bog with flat-topped or convex peat surfaces (often referred to as 'high-centre polygons') separated by trenches over ice wedges that form a polygonal pattern when viewed from above. The peat was deposited in a permafrost environment as shown by internal structures.F01Northern ribbed fenA fen with parallel, low peat ridges ('strings') alternating with wet hollows or shallow pools, oriented across the major slope at right angles to water movement. The depth of peat is >1 m.F07Shore fenA fen with an anchored surface mat that forms the shore of a pond or lake. The rooting zone is affected by the water of the lake at both normal and flood levels.F11Slope fenA fen occurring mainly on slow-draining, nutrient-enriched seepage slopes. Pools are usually absent, but wet seepage tracks may occur. Peat thickness is usually <2 m.F13Horizontal fenA fen with a gently sloping, featureless surface. This fen occupies broad, often ill-defined depressions and may interconnect with other fens. Peat accumulation is generally uniform.F14Snowpatch fenFens that form below melting snowbanks in the Arctic or Alpine. Peat accumulation is very limited and thicknesses are usually less than 20 cm.SURFACE FORM(cont.)Attribute ValueDESCRIPTIONS01Stream swampA swamp occurring along the banks of permanent or semipermanent streams. The high water table is maintained by the level of water in the stream. The swamp is seasonally inundated with subsequent sediment deposition.S04Basin swampA swamp developed in a topographically defined basin where water derived locally may be augmented by drainage from other parts of the watershed. Accumulation of well-decomposed peat is shallow (< 0.5 m) at the edge but may reach 2 m at the centre.M06Stream marshA marsh occupying shorelines, bars, stream beds, or islands in continuously flowing watercourses. The marsh is subject to prolonged annual flooding and is commonly covered by thick layers of sediments.M11Shallow basin marshA marsh occurring in a uniformly shallow marsh depression or swale, having a gradual gradient from the edge to the deepest portion; the marsh edge may be poorly defined. Water levels fluctuate rapidly.M14Shore marshA marsh occupying the contact zone between high and low water marks bordering semipermanent or permanent lakes. The marsh, usually found along protected shorelines, behind barrier beaches in lagoons, on islands, or in embayments, is subject to flooding by a rise in lake levels, wind waves, or surface runoff.Permafrost formTwo attribute fields (Prmfrst1, Prmfrst2) capture the primary and secondary permafrost forms in each ecoregion. The documents were reviewed for all permafrost types and a list was compiled that is more comprehensive than that provided by Agriculture and Agri-foods Canada. The attribute values and definitions are provided below.Permafrost FORMAttribute ValueDESCRIPTIONEHEarth hummocks -A hummock having a core of silty and clayey mineral soil which may show evidence of cryoturbation. Earth hummocks are a type of non-sorted circle (see also patterned ground and turf hummock) commonly found in the zone of continuous permafrost. They develop in materials of a high silt and clay content and/or of high ice content.FRFrost heaved/shattered rock -rock that has been pushed to the surface or broken by freeze-thaw cyclesGIGround ice - Layers of segregated ice or ice-organic mixes or ice-mineral soil mixes that do not melt.GLGlacier - A mass of ice that develops as a result of snow and ice accumulation over a long period of time and that moves laterally from the centre of accumulation.HCHigh centre polygons (with low-centre polygons as subdominant) - see low-centre polygonIWIce wedge polygonsLCLow centre polygons (with high-centre polygons as subdominant): A feature of continuous permafrost in wet terrain (e.g., drained lakes). Ice wedges develop in cracks, pushing up soil ridges adjacent to the wedges and creating dams that trap water inside the resulting polygons. The features appear as high-rimmed ridges surrounding wet shallow central pools of water. Over hundreds or thousands of years, peat deposits build up and eventually create a dome-shaped surface; these features are referred to as high-centre polygons.NCNon-sorted circles, stripes - a non-sorted circle is a patterned ground form that is equidimensional in several directions, with a dominantly circular outline which lacks a well-defined border of stones and has a centre composed of a mixture of textures from fine through coarse mixed with gravels, cobbles and boulders. A network of non-sorted circles that meet is referred to as a non-sorted net. Non-sorted stripes form under the same influence of frost action as non-sorted circles, but because they form on slopes, they flow and elongate perpendicular to contour.PAPalsa -A peaty permafrost mound possessing a core of alternating layers of segregated ice and peat or mineral soil material. Palsas are typically between 1 and 7 metres in height and a few metres to 100 metres in diameter. PGPatterned ground - A general term for circles, polygons, stripes, nets and steps created by frost action.Permafrost FORM (cont.)Attribute ValueDESCRIPTIONPIPingo - A mound of earth-covered ice found in the Arctic, Subarctic and Antarctica that can reach up to 70 metres in height and up to 2 kilometres in diameter. The term originated as the Inuit word for a small hill. They are most common in Canada along the coastal plains of the Tuktoyaktuk Peninsula. They form in the former basins of drained lakes. PPPeat plateau - A bog composed of perennially frozen peat, rising abruptly about 1 m from the surrounding unfrozen fen. The surface is relatively flat and even and often covers very large areas. The peat was originally deposited in a non-permafrost environment and is often associated with collapse scars or fens.PPPPolygonal peat plateau - A perennially frozen bog, rising about 1 m above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a non-permafrost environment. Polygonal peat plateaus are commonly found near the boundary between the zones of discontinuous and continuous permafrost.RRunnels - A pattern of alternating flow channels and interchannel uplands perpendicular to contour. In permafrost-affected areas, light and dark-striped patterns on hill slopes are runnels; the light stripes are usually sparsely treed, lichen covered interchannel areas with permafrost close to the surface and the dark stripes are shallow drainage channels vegetated by dwarf birch, willow and other shrubs with a thicker active layer.RGRock glaciers - ice-cored, often lobe-shaped landforms covered by soil and rock.RTRetrogressive thaw (or flow) slides - A slide that consists of a headwall containing ice or ice-rich sediment, which retreats in a retrogressive fashion through melting, and a debris flow formed by the mixture of thawed sediment and ice that has slid down the failure surface to the base of the slope and frequently into a thermokarst depression, lake, or pond. SCSorted circles, stripes - a sorted circle is permafrost-related patterned ground that forms under extremely cold conditions when frost action pushes parent materials to the surface; the centre of the circle is occupied by sparsely vegetated finer-textured materials, with a ring of gravels, cobbles and boulders around the outside. A network of sorted circles that meet is referred to as a sorted net. Sorted stripes form under the same influence of frost action as sorted circles, but because they form on slopes, they flow and elongate perpendicular to contour.SOSolifluction - the downslope movement of water-saturated soil in a viscous or plastic state over an impermeable layer, often permafrost. The presence of an impermeable permafrost layer prevents the internal drainage of the soil, forcing the soil to flow down the slope. During warm periods the surface layer thaws and slides across the frozen layer, slowly moving downslope due to frost heave.TKThermokarst -The process by which characteristic landforms result from the thawing of ice-rich permafrost or the melting of massive ice. TUTurf hummocks - a permafrost-related northern Arctic landform generally less than 1m across and 50cm in height that is often associated with aeolian materials (sands, silts). It is more or less circular and is initially forced upward by frost action. It receives solar energy from all sides during the 24-hour days of the brief growing season, promoting plant growth which traps windborne silt and sand particles, resulting in the gradual accretion of materials and growth of the hummock.VBVeneer bog - A bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drainage ways during peak runoff. Peat thickness is generally less than 1.5 metres.Soil developmentThree dataset attribute fields (Soil1, Soil2, Soil3) capture soil information from the written ecoregion descriptions. A subset of the soil table provided by Agriculture and Agri-food Canada was used, as many of the soil types in the full table do not occur in the NWT. As for surficial geology, the first and second variables (Soil1, Soil2) may be codominant or the second subordinate to the first. In some cases, a value for Soil1and Soil3was provided, with no value for Soil2. This indicates that Soil1is dominant, and Soil3is only present over minor areas within the ecoregion. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.Attribute ValueDESCRIPTIONFGray LuvisolHGHumic GleysolHRHumic RegosolIBrunisol Gray LuvisolLGLuvic GleysolMEutric BrunisolOOrganic CryosolPDystric BrunisolRRegosolSStatic CryosolTTurbic CryosolUGleysolXFibrisolYMesisolZHumisol#Water, Rock or IceLand CoverThree attribute fields (Landcov1, Landcov2, Landcov3) capture vegetation information from the written descriptions. Because vegetation patterns are in part how ecoregions are described, there is considerable variation from one Level II ecoregion to another, and the 17 classes provided by Agriculture and Agri-food Canada were considered inadequate to represent significant vegetation trends. A review of all five documents consequently resulted in the establishment of specific attribute values for major vegetation types within the Taiga Plains, Taiga Shield, and Cordillera. The Southern Arctic and Northern Arctic classifications are based mainly upon the Circumpolar Arctic Vegetation Map community types (CAVM Team 2003) and are more consistently defined and described, but also had some unique values. Attribute values specific to each area are presented in tables below; to identify the types uniquely, they are prefaced with TP:(Taiga Plains), TS:(Taiga Shield), CO:(Cordillera), SA:(Southern Arctic) and NA:(Northern Arctic).Landcov1and Landcov2were generally used to capture the major vegetation types; if there was a significant vegetation type that did not occur over large areas but was considered diagnostic (e.g. alpine fir types in the southern mountains), it was included as Landcov3even if there were other vegetation communities that covered larger areas. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.LAND COVER (VEGETATION): TAIGA PLAINSAttribute ValueDESCRIPTIONTP:F1Fen: SedgeTP:F2Fen: shrub-sedgeTP:F3Fen or bog: Black spruce - shrub - mossTP:F4Fen: Black spruce - larchTP:FC1Forest: Jackpine - shrub - lichenTP:FC2Forest: Jackpine - tall shrub - lichenTP:FC3Forest: Lodgepole and jackpine X lodgepole hybridTP:FC4Forest: White spruce - jack pineTP:FC5Forest: Spruce - lichenTP:FC6Forest: spruce-shrub (includes both black and white spruce)TP:FC7Forest: white spruceTP:FC8Forest: black spruce - shrub - lichenTP:FD1Forest: Deciduous (aspen, balsam poplar, paper birch)TP:FD2Forest: Paper birchTP:FM1Forest: Mixedwood jackpine - aspenTP:FM2Forest: Spruce - paper birch (includes white and black spruce)TP:FM3Forest: Mixedwood aspen - paper birch - spruce - jackpineTP:M1Marsh: bulrush - sedgeTP:M2Meadow: herb-grass-shrubTP:S1Shrubland: dwarf birch - dryland sedge - lichenTP:S2Shrubland: dwarf birch - Labrador tea - peat moss TP:S3Shrubland: dwarf birch - paper birch (post-fire regeneration). May include white spruce and black spruce regeneration, and may be one or both deciduous species.TP:S4Shrubland: dwarf birch - willowTP:S5Shrubland: lichen - Labrador tea - dwarf birch (polygonal peat plateaus)TP:S6Shrubland: willow-alderTP:S6Shrubland: willowTP:S7Shrubland: dryTP:TSTundra: ShrubTP:W1Woodland: White spruce - shrub-lichen woodlandTP:W2Woodland: Black spruce - low shrub- lichenLAND COVER (VEGETATION): TAIGA SHELDAttribute ValueDESCRIPTIONTS:F1Fen: sedge (including a minor component of shrubs)TS:F2Fen: shrub (including a minor component of sedges)TS:FC1Forest: Jackpine (may include minor paper birch, white spruce, black spruce)TS:FC2Forest: Spruce - moss (undifferentiated white and black spruce)TS:FC3Forest: Spruce - shrub - lichen (undifferentiated white and black spruce)TS:FD1Forest: DeciduousTS:FM1Forest: Mixedwood (any combination of aspen, balsam poplar, and birch with white spruce, black spruce, and jackpine)TS:FM2Forest: Mixedwood white spruce - paper birchTS:FM3Forest: Mixedwood jackpine - paper birchTS:NFLLichen on rockTS:S1Shrubland: Dwarf birch - paper birch (post-fire regeneration)TS:S2Shrubland: lichen - Labrador tea - dwarf birch (peat plateaus)TS:T1Tundra: lichen - grass heathTS:T2Tundra: sedgeTS:T3Tundra: shrub heathTS:T4Tundra: lichen-sedge-shrub complexTS:W1Woodland: White spruce - shrub - lichen TS:W2Woodland: Spruce - shrub - lichenTS:W3Woodland: Black spruce - lichenLAND COVER (VEGETATION): CORDILLERAAttribute ValueDESCRIPTIONCO:F1Fen: Black spruce - (larch) - shrubCO:F2Fen: Sedge - cottongrass tussockCO:F3Fen: Shrub - sedgeCO:FC1Forest: JackpineCO:FC2Forest: lodgepole pineCO:FC3Forest: Spruce - shrubCO:FC4Forest: White spruceCO:FC5Forest: White spruce - alpine firCO:FD1Forest: Deciduous (aspen, balsam poplar, paper birch)CO:FM1Forest: Mixedwood (white spruce, aspen, jackpine, lodgepole pine)CO:FM2Forest: Mixedwood (spruce, balsam poplar, birch, tall shrub)CO:NFL1Lichen - RockCO:Rrock barrensCO:S1Shrubland: dwarf birch - willow - paper birch (post-fire regeneration)CO:S2Shrublands: Tall (alder, willow, birch)CO:S3Shrublands: DryCO:S4Shrublands: dwarf birch - willowCO:T1Tundra: herb (rich, diverse, Pacific-Cordilleran species)CO:T2Tundra: LichenLAND COVER (VEGETATION): CORDILLERA (cont.)Attribute ValueDESCRIPTIONCO:T3Tundra: Sedge - cottongrassCO:T4Tundra: sedge-shrubCO:T5Tundra: shrubCO:W1Woodland: alpine firCO:W2Woodland: black spruce - larch - mossCO:W3Woodland: black spruce - shrub - moss - lichenCO:W4Woodland: White spruce - alpine firCO:W5Woodland: White (black) spruce - shrub - lichenLAND COVER (VEGETATION): SOUTHERN ARCTIC*Attribute ValueDESCRIPTIONSA:B1Cryptogam \u2013herb barren SA:B2Cryptogam \u2013barren complex (bedrock) SA:CMCoastal MarshSA:G2Graminoid \u2013prostrate dwarf-shrub \u2013forb tundraSA:G3Nontussock sedge \u2013dwarf-shrub \u2013moss tundraSA:G4Tussock-sedge \u2013dwarf-shrub \u2013moss tundra SA:P1Prostrate dwarf-shrub \u2013herb tundraSA:S1Erect dwarf-shrub tundra SA:S2Low-shrub tundraSA:T1Tundra: lichen - grass heath (continuation of Taiga Shield)SA:T2Tundra: sedge (continuation of Taiga Shield)SA:T3Tundra: shrub heath (continuation of Taiga Shield)SA:TGTree groves / sparse tree growthSA:W2Sedge \u2013moss \u2013dwarf-shrub wetland SA:W3Sedge \u2013moss \u2013low-shrub wetland LAND COVER (VEGETATION): NORTHERN ARCTIC*Attribute ValueDESCRIPTIONNA:B1Cryptogam \u2013herb barren NA:B2Cryptogam \u2013barren complex (bedrock) NA:B3b-cNon-carbonate mountain complex NA:B4bCarbonate mountain complex NA:G1Rush \u2013grass\u2013forb \u2013cryptogam tundra NA:G2Graminoid \u2013prostrate dwarf-shrub \u2013forb tundra NA:G3Nontussock sedge \u2013moss \u2013dwarf-shrub tundraNA:P1Prostrate dwarf-shrub \u2013herb tundra NA:P2Prostrate/hemiprostrate dwarf-shrub tundraNA:S2Low-shrub tundra NA:W1Sedge \u2013grass \u2013moss wetland * the code values following SA: and NA: are those defined by the Circumpolar Arctic Vegetation Map (CAVM Team 2003), except for SA:T1, SA:T2, SA:T3 (continuation of Taiga Shield vegetation to the north) and SA:CM (coastal marshes of Mackenzie Delta, too small to address in the circumpolarmap survey.REFERENCES CITEDCAVM Team. 2003. 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Project work was completed primarily by the Ecosystem Classification Group, as detailed in the reports.\n\nFor specific information or questions regarding the dataset, please contact Kathleen Groenewegen, GIS Specialist, at kathleen_groenewegen@gov.nt.ca or 867-874-2009.", "parentLayer": { "id": 82, "name": "Ecological Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "ECO2_NAM_1", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 92, 137, 68, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 104, 104, 104, 255 ], "width": 0.4 } }, "value": "Taiga Plains", "label": "Taiga Plains", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 199, 215, 158, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 104, 104, 104, 255 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"shapeAreaFieldName": "SHAPE.STArea()", "shapeLengthFieldName": "SHAPE.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 84, "name": "Level III EcoRegions", "type": "Feature Layer", "description": "Please refer to the following website for additional information including the reports for each Level II Ecoregion (i.e. Taiga Plains, Taiga Shield, Cordillera, Southern Arctic, Northern Arctic (coming soon)).http://www.enr.gov.nt.ca/_live/pages/wpPages/Ecosystem_Classification.aspxATTRIBUTESOne set of variables aggregated under climate data was derived from Level III ecoregion descriptions; the remainder of the attribute list information was derived from Level IV ecoregion descriptions. For non-climate information, the entire ecoregion description and all photos and captions were reviewed to develop the best abstraction of each attribute. Attribute abstraction was completed by the D.Downing (2013) who prepared all of the Level IV ecoregion descriptions and is familiar with the landscapes. There is a certain amount of repetition between some of the categories e.g. glaciers may be represented under surficial geology and surface materials as ice and under permafrost as glaciers. Climate dataClimate information is derived from Level III ecoregion descriptions, specifically the descriptive section titled \u201cClimate\u201d,and assigned to all Level IV ecoregions nested within a Level III ecoregion. For example, the Taiga Plains Low Subarctic Level III ecoregion includes 14 Level IV ecoregions. All 14 of these ecoregions are assigned the same value or value range for mean annual temperature, precipitation and the other climatic variables listed below. Climate attributes are assigned in this manner because there is insufficient climatic information to describe individual climatic parameters for Level IV ecoregions. The information presented for Level III ecoregions in the above-listed reports was largely derived from models produced at the national ecodistrict level by Agriculture and Agri-Food Canada, which are generalizations derived from very sparsely distributed long-term weather station data.Attribute values included under this general category are typically expressed as numeric ranges, reflecting the degree of inherent variability (geographic and year-to-year) within Level III ecoregions. Attributes include the following:CLIMATE ATTRIBUTESATTRIBUTEDESCRIPTIONMATMean annual temperature, expressed as degrees CelsiusMAPMean annual precipitation, expressed as mm of total rain and snowM_JANMean temperature in the coldest month, typically January (or February where designated by a value followed by (Feb)), expressed as degrees CelsiusM_JULMean temperature in the warmest month (July), expressed as degrees CelsiusSRAnnAverage annual solar radiation, expressed as megajoules per square metre per daySRJunSolar radiation in June (longest days), expressed as megajoules per square metre per daySRDecSolar radiation in December (shortest days), expressed as megajoules per square metre per day Surficial geologyThree dataset attributes (Surfgeo1, Surfgeo2, Surfgeo3) are included under the general category of surficial geology. The attribute values and their definitions are provided below and in the worksheet titled \u201csurficial geology\u201d in the Excel® workbook titled \u201cNWT_ecoregion_searchable_attributes.xls\u201d.Most of the attribute values and their definitions are as presented by Agriculture and Agri-foods Canada (website: http://sis.agr.gc.ca/cansis/nsdb/ecostrat/1999report/data_tables.html. Attribute value definitions for colluvium were augmented by adding a reference to highly weathered tills, mostly related to areas in the Northern and Southern Arctic considered by some researchers to be recently unglaciated. A variable referencing weathered rock (RW) was also added as it is a significant component in some areas. Changes are shown in italics and coloured red in the table below. The first and second variables (Surfgeo1, Surfgeo2) may be codominant or the second subordinate to the first. In most cases, Surfgeo3was a minor component of the ecoregion but some ecoregions were highly complex and all three variables were judged to be of equal importance. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.SURFICIAL GEOLOGYAttribute ValueDESCRIPTIONIGlaciers: Ice and minor morainal debris.AAlluvial Deposits: stratified silt, sand, clay, and gravel; floodplain, delta, and fan deposits; in places overlies and includes glaciofluvial deposits.mMMarine Mud: Fluid silty clay and clayey silt: deposited as quiet water sediments.sMMarine Sand: Sand and locally gravel; deposited as sheet sands, lags, and beaches.mLLacustrine Mud: Fluid silty clay and clayey silt: deposited as quiet water sediments.sLLacustrine Sand: Sand and locally gravel; deposited as sheet sands, lags, and beaches.EEolian Deposits: sand and minor silt: dunes, blowouts, and undulating plains: In most places overlies deltaic sediments, coarse lacustrine sediments, or glaciofluvial deposits.OOrganic deposits: peat, muck and minor inorganic sediments; large bog, fen, and swamp areas where organic fill masks underlying surficial materials; generally >2 m thickbCColluvial Blocks: Blocks, and rubble with sand and silt; derived from crystalline bedrock, medium grade metamorphic substrate, and cemented sandstone.rCColluvial Rubble:Rubble and silt; derived from carbonate and consolidated fine classic sedimentary rock substrate. Includes highly weathered tillsfCColluvial Fines: Silt, clay, and fine sand: derived from substrate weakly consolidated shale and siltstone substrate. Includes highly weathered tillssCColluvial Sand: Sand and gravel; derived from poorly lithified sandstone and conglomerate substrate. Includes highly weathered tills.L:fMLacustrine Fine Grained: Fine grained silt and clay, locally containing stones: deposited as quiet water sediments.L:cLLacustrine Coarse Grained: sand, silt, and gravel: deposited as deltas, sheet sands and lag deposits.M:fMMarine Fine Grained: Dominantly silt and clay, locally containing stones; deposited as a quiet water sediment.M:cMMarine Coarse Grained: Sand and gravel: deposited as sheet sands, deltas, and extensive flights of beaches.M:MvLag: Sand, gravel, and pockets of fine sediment; thin to discontinued sediment veneer and residual lag developed during marine submergence; includes areas of washed till and rock.GpGlaciofluvial Plain: Sand and gravel: deposited as outwash sheets, valley trains, and terrace deposits.GxGlaciofluvial Complex: Sand and gravel and locally diamicton: undifferentiated ice contact stratified drift, and outwash; locally includes till and rock.TbTill Blanket: Thick and continuous till.TvTill Veneer: Thin and discontinuous till: may include areas of rock outcrop.TvbTill veneer and blanket complex:VQuarternary Volcanics: consolidated lava, breccia and tephra: dominantly basaltic and andesitic in composition; includes flows, volcanic piles and cinder conesRaAlpine Complexes: rock, colluvium, and till: rock and Quarternary deposits complex in an area, characterized by alpine and glacial landforms.RUndivided: rock with minor Quaternary deposits. Includes unweathered and weathered rock.RWWeathered bedrock \u2013 usually shales and sandstones.Surface materialsTwo attribute fields (Surfmat1, Surfmat2) are included under the general category of surface materials. This category is very general and reflects surficial geology categories. Refer to the table below.SURFACE MATERIALSAttribute ValueDESCRIPTIONICICE and SNOWGlacial ice and permanent snowORORGANIC SOILContains > 30% organic matter as measured by weightROROCKRock undifferentiatedSOMINERAL SOILPredominantly mineral particles: contains < 30% organic matter as measured by weightURURBANUrban areas. Note that only a few major urban area polygons are included on SLC source maps, therefore, do not use for tabulating total urban coverage. Not used in NWT attribute list. LandformOne attribute field (Landform) is included. This is the only attribute field that exceeds 8 alphanumeric characters (it is 10 characters in length). The landform reflects the predominant landscape feature within the ecoregion and is taken directly from the three-part name for the ecoregion, which reflects its geographic location, its major landform, and its affinity with climate(e.g., KellerPlainLSEcoregion). The attribute values used for this project are more comprehensive than the options provided under the CanSIS classification system. landformAttribute ValueDESCRIPTIONCoastlandsnarrow linear areas parallel to the seacoast that are influenced by both oceanic and terrestrial processes and that include a variety of landforms.Cst PlainCoastal Plain: see plain.Deltaan alluvial sediment deposit at the mouth of a river, often somewhat triangular in form, frequently flooded and nearly level. High water tables, abandoned channels and oxbow lakes and periodic nutrient-rich sediment deposition are important ecological factors.Foothillslow hills at the base of mountains. For purposes of delineation in the Northwest Territories, an arbitrary elevation range of 200-800 m ASL is used and is reasonably well correlated with breaks in slope between the valleys and the foothills and between the foothills and the mountains. Incised stream channels, uneven topography that creates variable microenvironments, and steeper slopes than the surrounding lowlands and plains are typical. Hillsprominences rising generally no more than about 500 m above the surrounding areas. They may have gentle to abrupt slopes; slope steepness and aspect along with bedrock substrates near or at the mineral soil surface can strongly influence vegetation development. Drainage patterns are well developed relative to those of the surrounding lower-lying areas. In the Northern Arctic, this term and highlands are used to name ecoregions with variable topography that are markedly higher than the surrounding terrain and that often have distinctive bedrock and surficial geology features. Islandsland masses completely surrounded by water.Lowlandan area of low relief at the lower ranges of regional elevation; it receives water inputs from adjacent higher terrain. It is typically imperfectly- to poorly-drained, has a higher proportion of wetlands than other landscape types and is nearly level. Drainage patterns are poorly defined.Mountainsareas that display large differences in relief, usually over 600 m. Bedrock exposures, steep slopes and deeply incised parallel river channels are characteristic, climatic zonation occurs as a result of elevation changes, and microenvironments are highly variable. A range is a row or chain of mountains separated from other mountain ranges by passes or rivers; a ridge is an elongate crest or a linear series of crests. Peninsulaa land mass surrounded on three sides by waterPlainan extensive area that is typically level, gently sloping or hummocky and that can occur at low to high elevations, the latter often as part of high elevation plateaus. It is referred to as a coastal plainwhen it borders the coastline and is influenced by marine and terrestrial factors.Plateauan extensive level to gently sloping upland area at a higher elevation than its surroundings, often underlain by horizontally-oriented bedrock strata. They can be deeply eroded by streams.Rangesee mountains.LANDFORM(cont.)Attribute ValueDESCRIPTIONSlopesareas with variable local relief underlain by a regionally inclined surfaceUplandgeneral term for an area that is higher than the surrounding area, sometimes several hundred metres higher, that are not plateaus or hills. Uplands usually have undulating to hummocky terrain, a higher proportion of moderately well- to well-drained sites than lowlands or plains and a lower proportion of wetlands. Drainage patterns tend to be dendritic (resembling tree roots).Valleyany low-lying area bounded by plateaus, mountains, foothills or plains and traversed by a river.Surface formTwo attribute fields (Surffrm1, Surffrm2) are provided. The table below summarizes 31 classes provided by Agriculture and Agri-foods Canada at the website address referenced above under Surficial Geology. As for surficial geology, the first and second attributes reflect the dominant surface forms referenced in the written descriptions. A one-to-one correspondence between the ecoregion description and the supplied list of surface forms was not always possible; these decisions were most challenging in mountainous areas, where the value for \u201cridged\u201dwas often used to capture the concept of rugged bedrock-controlled terrain in addition to the provided definition that mostly references glacial features. Wetland forms were sometimes included as the second component (Surffrm2) even if they did not cover a majority of the ecoregion because of their significance or uniqueness. For example, one wetland form (snowpatch fens) was added to the list of attributes provided by Agriculture and Agri-foods Canada and referenced in two High Arctic-oceanic ecoregions. The changes are shown in italics and coloured red in the table below. Many of the wetland forms (B04 and most of the entries below that value) were not present in the NWT, but are included here for completeness. SURFACE FORMAttribute ValueDESCRIPTIONDDissectedA dissected (or gullied) pattern providing external drainage for an area.HHummocky (or irregular)A very complex sequence of slopes extending from somewhat rounded concavities (or swales) of various sizes to irregular conical knolls (or knobs) and short discontinuous ridges; there is a general lack of concordance between knolls and swales. Slopes are generally 4-70%. Examples are hummocky moraines and hummocky fluvioglacial landforms.IInclinedA sloping, unidirectional surface with a generally constant slope unbroken by marked irregularity or gullies; a weakly developed dissected pattern provides external drainage for the local area. Slopes are 2-70%; the form of inclined slopes is not related to the initial mode of origin of the underlying material.KKnoll and kettleA chaotic sequence of knolls and kettles (or sloughs), which occupies 15-20% of an area and has no external drainage. Slopes are generally >3%. Examples are morainal plains and hill lands.LLevelA flat or very gently sloping, unidirectional surface with a generally constant slope unbroken by marked elevations and depressions. Slopes are generally <2%. Examples are floodplains and lake plains.MRollingA very regular sequence of moderate slopes extending from rounded and, in some places, confined concave depressions to broad, rounded convexities producing a wavelike pattern of moderate relief. Slope gradients are generally >5% but may be less. This surface form is usually controlled by the underlying bedrock.RRidgedA long, narrow elevation of the surface, usually sharp crested with steep sides; ridges may be parallel, subparallel, or intersecting. Examples are eskers, crevasse fillings, washboard moraines and some drumlins. Includes pronounced terrain associated with rugged bedrock-controlled hill and mountain systems.SSteepErosional slopes of greater than 70% (35°), present on both consolidated and unconsolidated materials. The form of a steep erosional slope on unconsolidated materials is not related to the initial mode of origin of the underlying material. An example is an escarpment.TTerracedScarp face and the horizontal or gently inclined surface (or tread) above it. An example is an alluvial terrace.SURFACE FORM(cont.)Attribute ValueDESCRIPTIONUUndulatingA very regular sequence of gentle slopes that extends from rounded and, in some places, confined concavities to broad, rounded convexities producing a wavelike pattern of low local relief. Slope length is generally less than 0.8 km and the dominant gradient of slopes is usually 2-5%. The terrain lacks an external drainage pattern. Examples are some ground moraines and lacustrine material of varying textures.B04Domed bogA large bog (diameter usually >500 m) with a convex surface rising several metres above the surrounding terrain. The centre usually drains in all directions; small crescentic pools commonly form around the highest point; a concentric pattern is formed if the highest point is in the centre, while an eccentric pattern is formed if the highest point is off-centre. Peat development is usually >3 m.B05Polygonal peat plateau bogA perennially frozen bog rising approximately 1 m above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a nonpermafrost environment.B07Peat plateau bogA bog composed of perennially frozen peat rising abruptly about 1 m from the surrounding unfrozen fen. The surface is relatively flat and even, and commonly covers large areas. The peat was originally deposited in a nonpermafrost environment and is associated in many places with collapse scar bogs or fens.B09Atlantic plateau bogA bog with a flat to undulating surface raised above the surrounding terrain. The bog edges commonly slope steeply downwards to the mineral soil terrain. Large pools scattered on the bog reach depths of 2-4 m.B13Basin bogA bog situated in a basin with essentially closed drainage which receives water from precipitation and runoff from the immediate surroundings. The surface of the bog is flat with peat generally deepest at the centre.B14Flat bogA bog having a flat, featureless surface and occurring in broad, poorly defined depressions. The depth of peat is generally uniform.B15String bogA pattern of narrow (2-3 m wide), low (<1 m high) ridges oriented at right angles to the direction of drainage; wet depressions or pools occur between the ridges. The water and peat are very low in nutrients because the water has been derived from other ombrotrophic wetlands. The peat thickness is >1 m.B16Blanket bogA bog consisting of extensive peat deposits that occur more or less uniformly over gently sloping hills and valleys. The peat thickness is usually < 2 m.B18Slope bogA bog occurring in areas of high rainfall on appreciably sloping land surfaces. The bog is fed by rainwater and by water draining from other nutrient-poor peatlands. The peat may exceed 1 m in thickness.B19Veneer bogA bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drainways during peak runoff. Peat thickness is usually <1.5 m.B20Lowland polygon bogA bog with flat-topped or convex peat surfaces (often referred to as 'high-centre polygons') separated by trenches over ice wedges that form a polygonal pattern when viewed from above. The peat was deposited in a permafrost environment as shown by internal structures.F01Northern ribbed fenA fen with parallel, low peat ridges ('strings') alternating with wet hollows or shallow pools, oriented across the major slope at right angles to water movement. The depth of peat is >1 m.F07Shore fenA fen with an anchored surface mat that forms the shore of a pond or lake. The rooting zone is affected by the water of the lake at both normal and flood levels.F11Slope fenA fen occurring mainly on slow-draining, nutrient-enriched seepage slopes. Pools are usually absent, but wet seepage tracks may occur. Peat thickness is usually <2 m.F13Horizontal fenA fen with a gently sloping, featureless surface. This fen occupies broad, often ill-defined depressions and may interconnect with other fens. Peat accumulation is generally uniform.F14Snowpatch fenFens that form below melting snowbanks in the Arctic or Alpine. Peat accumulation is very limited and thicknesses are usually less than 20 cm.SURFACE FORM(cont.)Attribute ValueDESCRIPTIONS01Stream swampA swamp occurring along the banks of permanent or semipermanent streams. The high water table is maintained by the level of water in the stream. The swamp is seasonally inundated with subsequent sediment deposition.S04Basin swampA swamp developed in a topographically defined basin where water derived locally may be augmented by drainage from other parts of the watershed. Accumulation of well-decomposed peat is shallow (< 0.5 m) at the edge but may reach 2 m at the centre.M06Stream marshA marsh occupying shorelines, bars, stream beds, or islands in continuously flowing watercourses. The marsh is subject to prolonged annual flooding and is commonly covered by thick layers of sediments.M11Shallow basin marshA marsh occurring in a uniformly shallow marsh depression or swale, having a gradual gradient from the edge to the deepest portion; the marsh edge may be poorly defined. Water levels fluctuate rapidly.M14Shore marshA marsh occupying the contact zone between high and low water marks bordering semipermanent or permanent lakes. The marsh, usually found along protected shorelines, behind barrier beaches in lagoons, on islands, or in embayments, is subject to flooding by a rise in lake levels, wind waves, or surface runoff.Permafrost formTwo attribute fields (Prmfrst1, Prmfrst2) capture the primary and secondary permafrost forms in each ecoregion. The documents were reviewed for all permafrost types and a list was compiled that is more comprehensive than that provided by Agriculture and Agri-foods Canada. The attribute values and definitions are provided below.Permafrost FORMAttribute ValueDESCRIPTIONEHEarth hummocks -A hummock having a core of silty and clayey mineral soil which may show evidence of cryoturbation. Earth hummocks are a type of non-sorted circle (see also patterned ground and turf hummock) commonly found in the zone of continuous permafrost. They develop in materials of a high silt and clay content and/or of high ice content.FRFrost heaved/shattered rock -rock that has been pushed to the surface or broken by freeze-thaw cyclesGIGround ice - Layers of segregated ice or ice-organic mixes or ice-mineral soil mixes that do not melt.GLGlacier - A mass of ice that develops as a result of snow and ice accumulation over a long period of time and that moves laterally from the centre of accumulation.HCHigh centre polygons (with low-centre polygons as subdominant) - see low-centre polygonIWIce wedge polygonsLCLow centre polygons (with high-centre polygons as subdominant): A feature of continuous permafrost in wet terrain (e.g., drained lakes). Ice wedges develop in cracks, pushing up soil ridges adjacent to the wedges and creating dams that trap water inside the resulting polygons. The features appear as high-rimmed ridges surrounding wet shallow central pools of water. Over hundreds or thousands of years, peat deposits build up and eventually create a dome-shaped surface; these features are referred to as high-centre polygons.NCNon-sorted circles, stripes - a non-sorted circle is a patterned ground form that is equidimensional in several directions, with a dominantly circular outline which lacks a well-defined border of stones and has a centre composed of a mixture of textures from fine through coarse mixed with gravels, cobbles and boulders. A network of non-sorted circles that meet is referred to as a non-sorted net. Non-sorted stripes form under the same influence of frost action as non-sorted circles, but because they form on slopes, they flow and elongate perpendicular to contour.PAPalsa -A peaty permafrost mound possessing a core of alternating layers of segregated ice and peat or mineral soil material. Palsas are typically between 1 and 7 metres in height and a few metres to 100 metres in diameter. PGPatterned ground - A general term for circles, polygons, stripes, nets and steps created by frost action.Permafrost FORM (cont.)Attribute ValueDESCRIPTIONPIPingo - A mound of earth-covered ice found in the Arctic, Subarctic and Antarctica that can reach up to 70 metres in height and up to 2 kilometres in diameter. The term originated as the Inuit word for a small hill. They are most common in Canada along the coastal plains of the Tuktoyaktuk Peninsula. They form in the former basins of drained lakes. PPPeat plateau - A bog composed of perennially frozen peat, rising abruptly about 1 m from the surrounding unfrozen fen. The surface is relatively flat and even and often covers very large areas. The peat was originally deposited in a non-permafrost environment and is often associated with collapse scars or fens.PPPPolygonal peat plateau - A perennially frozen bog, rising about 1 m above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a non-permafrost environment. Polygonal peat plateaus are commonly found near the boundary between the zones of discontinuous and continuous permafrost.RRunnels - A pattern of alternating flow channels and interchannel uplands perpendicular to contour. In permafrost-affected areas, light and dark-striped patterns on hill slopes are runnels; the light stripes are usually sparsely treed, lichen covered interchannel areas with permafrost close to the surface and the dark stripes are shallow drainage channels vegetated by dwarf birch, willow and other shrubs with a thicker active layer.RGRock glaciers - ice-cored, often lobe-shaped landforms covered by soil and rock.RTRetrogressive thaw (or flow) slides - A slide that consists of a headwall containing ice or ice-rich sediment, which retreats in a retrogressive fashion through melting, and a debris flow formed by the mixture of thawed sediment and ice that has slid down the failure surface to the base of the slope and frequently into a thermokarst depression, lake, or pond. SCSorted circles, stripes - a sorted circle is permafrost-related patterned ground that forms under extremely cold conditions when frost action pushes parent materials to the surface; the centre of the circle is occupied by sparsely vegetated finer-textured materials, with a ring of gravels, cobbles and boulders around the outside. A network of sorted circles that meet is referred to as a sorted net. Sorted stripes form under the same influence of frost action as sorted circles, but because they form on slopes, they flow and elongate perpendicular to contour.SOSolifluction - the downslope movement of water-saturated soil in a viscous or plastic state over an impermeable layer, often permafrost. The presence of an impermeable permafrost layer prevents the internal drainage of the soil, forcing the soil to flow down the slope. During warm periods the surface layer thaws and slides across the frozen layer, slowly moving downslope due to frost heave.TKThermokarst -The process by which characteristic landforms result from the thawing of ice-rich permafrost or the melting of massive ice. TUTurf hummocks - a permafrost-related northern Arctic landform generally less than 1m across and 50cm in height that is often associated with aeolian materials (sands, silts). It is more or less circular and is initially forced upward by frost action. It receives solar energy from all sides during the 24-hour days of the brief growing season, promoting plant growth which traps windborne silt and sand particles, resulting in the gradual accretion of materials and growth of the hummock.VBVeneer bog - A bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drainage ways during peak runoff. Peat thickness is generally less than 1.5 metres.Soil developmentThree dataset attribute fields (Soil1, Soil2, Soil3) capture soil information from the written ecoregion descriptions. A subset of the soil table provided by Agriculture and Agri-food Canada was used, as many of the soil types in the full table do not occur in the NWT. As for surficial geology, the first and second variables (Soil1, Soil2) may be codominant or the second subordinate to the first. In some cases, a value for Soil1and Soil3was provided, with no value for Soil2. This indicates that Soil1is dominant, and Soil3is only present over minor areas within the ecoregion. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.Attribute ValueDESCRIPTIONFGray LuvisolHGHumic GleysolHRHumic RegosolIBrunisol Gray LuvisolLGLuvic GleysolMEutric BrunisolOOrganic CryosolPDystric BrunisolRRegosolSStatic CryosolTTurbic CryosolUGleysolXFibrisolYMesisolZHumisol#Water, Rock or IceLand CoverThree attribute fields (Landcov1, Landcov2, Landcov3) capture vegetation information from the written descriptions. Because vegetation patterns are in part how ecoregions are described, there is considerable variation from one Level II ecoregion to another, and the 17 classes provided by Agriculture and Agri-food Canada were considered inadequate to represent significant vegetation trends. A review of all five documents consequently resulted in the establishment of specific attribute values for major vegetation types within the Taiga Plains, Taiga Shield, and Cordillera. The Southern Arctic and Northern Arctic classifications are based mainly upon the Circumpolar Arctic Vegetation Map community types (CAVM Team 2003) and are more consistently defined and described, but also had some unique values. Attribute values specific to each area are presented in tables below; to identify the types uniquely, they are prefaced with TP:(Taiga Plains), TS:(Taiga Shield), CO:(Cordillera), SA:(Southern Arctic) and NA:(Northern Arctic).Landcov1and Landcov2were generally used to capture the major vegetation types; if there was a significant vegetation type that did not occur over large areas but was considered diagnostic (e.g. alpine fir types in the southern mountains), it was included as Landcov3even if there were other vegetation communities that covered larger areas. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.LAND COVER (VEGETATION): TAIGA PLAINSAttribute ValueDESCRIPTIONTP:F1Fen: SedgeTP:F2Fen: shrub-sedgeTP:F3Fen or bog: Black spruce - shrub - mossTP:F4Fen: Black spruce - larchTP:FC1Forest: Jackpine - shrub - lichenTP:FC2Forest: Jackpine - tall shrub - lichenTP:FC3Forest: Lodgepole and jackpine X lodgepole hybridTP:FC4Forest: White spruce - jack pineTP:FC5Forest: Spruce - lichenTP:FC6Forest: spruce-shrub (includes both black and white spruce)TP:FC7Forest: white spruceTP:FC8Forest: black spruce - shrub - lichenTP:FD1Forest: Deciduous (aspen, balsam poplar, paper birch)TP:FD2Forest: Paper birchTP:FM1Forest: Mixedwood jackpine - aspenTP:FM2Forest: Spruce - paper birch (includes white and black spruce)TP:FM3Forest: Mixedwood aspen - paper birch - spruce - jackpineTP:M1Marsh: bulrush - sedgeTP:M2Meadow: herb-grass-shrubTP:S1Shrubland: dwarf birch - dryland sedge - lichenTP:S2Shrubland: dwarf birch - Labrador tea - peat moss TP:S3Shrubland: dwarf birch - paper birch (post-fire regeneration). May include white spruce and black spruce regeneration, and may be one or both deciduous species.TP:S4Shrubland: dwarf birch - willowTP:S5Shrubland: lichen - Labrador tea - dwarf birch (polygonal peat plateaus)TP:S6Shrubland: willow-alderTP:S6Shrubland: willowTP:S7Shrubland: dryTP:TSTundra: ShrubTP:W1Woodland: White spruce - shrub-lichen woodlandTP:W2Woodland: Black spruce - low shrub- lichenLAND COVER (VEGETATION): TAIGA SHELDAttribute ValueDESCRIPTIONTS:F1Fen: sedge (including a minor component of shrubs)TS:F2Fen: shrub (including a minor component of sedges)TS:FC1Forest: Jackpine (may include minor paper birch, white spruce, black spruce)TS:FC2Forest: Spruce - moss (undifferentiated white and black spruce)TS:FC3Forest: Spruce - shrub - lichen (undifferentiated white and black spruce)TS:FD1Forest: DeciduousTS:FM1Forest: Mixedwood (any combination of aspen, balsam poplar, and birch with white spruce, black spruce, and jackpine)TS:FM2Forest: Mixedwood white spruce - paper birchTS:FM3Forest: Mixedwood jackpine - paper birchTS:NFLLichen on rockTS:S1Shrubland: Dwarf birch - paper birch (post-fire regeneration)TS:S2Shrubland: lichen - Labrador tea - dwarf birch (peat plateaus)TS:T1Tundra: lichen - grass heathTS:T2Tundra: sedgeTS:T3Tundra: shrub heathTS:T4Tundra: lichen-sedge-shrub complexTS:W1Woodland: White spruce - shrub - lichen TS:W2Woodland: Spruce - shrub - lichenTS:W3Woodland: Black spruce - lichenLAND COVER (VEGETATION): CORDILLERAAttribute ValueDESCRIPTIONCO:F1Fen: Black spruce - (larch) - shrubCO:F2Fen: Sedge - cottongrass tussockCO:F3Fen: Shrub - sedgeCO:FC1Forest: JackpineCO:FC2Forest: lodgepole pineCO:FC3Forest: Spruce - shrubCO:FC4Forest: White spruceCO:FC5Forest: White spruce - alpine firCO:FD1Forest: Deciduous (aspen, balsam poplar, paper birch)CO:FM1Forest: Mixedwood (white spruce, aspen, jackpine, lodgepole pine)CO:FM2Forest: Mixedwood (spruce, balsam poplar, birch, tall shrub)CO:NFL1Lichen - RockCO:Rrock barrensCO:S1Shrubland: dwarf birch - willow - paper birch (post-fire regeneration)CO:S2Shrublands: Tall (alder, willow, birch)CO:S3Shrublands: DryCO:S4Shrublands: dwarf birch - willowCO:T1Tundra: herb (rich, diverse, Pacific-Cordilleran species)CO:T2Tundra: LichenLAND COVER (VEGETATION): CORDILLERA (cont.)Attribute ValueDESCRIPTIONCO:T3Tundra: Sedge - cottongrassCO:T4Tundra: sedge-shrubCO:T5Tundra: shrubCO:W1Woodland: alpine firCO:W2Woodland: black spruce - larch - mossCO:W3Woodland: black spruce - shrub - moss - lichenCO:W4Woodland: White spruce - alpine firCO:W5Woodland: White (black) spruce - shrub - lichenLAND COVER (VEGETATION): SOUTHERN ARCTIC*Attribute ValueDESCRIPTIONSA:B1Cryptogam \u2013herb barren SA:B2Cryptogam \u2013barren complex (bedrock) SA:CMCoastal MarshSA:G2Graminoid \u2013prostrate dwarf-shrub \u2013forb tundraSA:G3Nontussock sedge \u2013dwarf-shrub \u2013moss tundraSA:G4Tussock-sedge \u2013dwarf-shrub \u2013moss tundra SA:P1Prostrate dwarf-shrub \u2013herb tundraSA:S1Erect dwarf-shrub tundra SA:S2Low-shrub tundraSA:T1Tundra: lichen - grass heath (continuation of Taiga Shield)SA:T2Tundra: sedge (continuation of Taiga Shield)SA:T3Tundra: shrub heath (continuation of Taiga Shield)SA:TGTree groves / sparse tree growthSA:W2Sedge \u2013moss \u2013dwarf-shrub wetland SA:W3Sedge \u2013moss \u2013low-shrub wetland LAND COVER (VEGETATION): NORTHERN ARCTIC*Attribute ValueDESCRIPTIONNA:B1Cryptogam \u2013herb barren NA:B2Cryptogam \u2013barren complex (bedrock) NA:B3b-cNon-carbonate mountain complex NA:B4bCarbonate mountain complex NA:G1Rush \u2013grass\u2013forb \u2013cryptogam tundra NA:G2Graminoid \u2013prostrate dwarf-shrub \u2013forb tundra NA:G3Nontussock sedge \u2013moss \u2013dwarf-shrub tundraNA:P1Prostrate dwarf-shrub \u2013herb tundra NA:P2Prostrate/hemiprostrate dwarf-shrub tundraNA:S2Low-shrub tundra NA:W1Sedge \u2013grass \u2013moss wetland * the code values following SA: and NA: are those defined by the Circumpolar Arctic Vegetation Map (CAVM Team 2003), except for SA:T1, SA:T2, SA:T3 (continuation of Taiga Shield vegetation to the north) and SA:CM (coastal marshes of Mackenzie Delta, too small to address in the circumpolarmap survey.REFERENCES CITEDCAVM Team. 2003. 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Arctic (coming soon)).http://www.enr.gov.nt.ca/_live/pages/wpPages/Ecosystem_Classification.aspxATTRIBUTESOne set of variables aggregated under climate data was derived from Level III ecoregion descriptions; the remainder of the attribute list information was derived from Level IV ecoregion descriptions. For non-climate information, the entire ecoregion description and all photos and captions were reviewed to develop the best abstraction of each attribute. Attribute abstraction was completed by the D.Downing (2013) who prepared all of the Level IV ecoregion descriptions and is familiar with the landscapes. There is a certain amount of repetition between some of the categories e.g. glaciers may be represented under surficial geology and surface materials as ice and under permafrost as glaciers. Climate dataClimate information is derived from Level III ecoregion descriptions, specifically the descriptive section titled \u201cClimate\u201d,and assigned to all Level IV ecoregions nested within a Level III ecoregion. For example, the Taiga Plains Low Subarctic Level III ecoregion includes 14 Level IV ecoregions. All 14 of these ecoregions are assigned the same value or value range for mean annual temperature, precipitation and the other climatic variables listed below. Climate attributes are assigned in this manner because there is insufficient climatic information to describe individual climatic parameters for Level IV ecoregions. The information presented for Level III ecoregions in the above-listed reports was largely derived from models produced at the national ecodistrict level by Agriculture and Agri-Food Canada, which are generalizations derived from very sparsely distributed long-term weather station data.Attribute values included under this general category are typically expressed as numeric ranges, reflecting the degree of inherent variability (geographic and year-to-year) within Level III ecoregions. Attributes include the following:CLIMATE ATTRIBUTESATTRIBUTEDESCRIPTIONMATMean annual temperature, expressed as degrees CelsiusMAPMean annual precipitation, expressed as mm of total rain and snowM_JANMean temperature in the coldest month, typically January (or February where designated by a value followed by (Feb)), expressed as degrees CelsiusM_JULMean temperature in the warmest month (July), expressed as degrees CelsiusSRAnnAverage annual solar radiation, expressed as megajoules per square metre per daySRJunSolar radiation in June (longest days), expressed as megajoules per square metre per daySRDecSolar radiation in December (shortest days), expressed as megajoules per square metre per day Surficial geologyThree dataset attributes (Surfgeo1, Surfgeo2, Surfgeo3) are included under the general category of surficial geology. The attribute values and their definitions are provided below and in the worksheet titled \u201csurficial geology\u201d in the Excel® workbook titled \u201cNWT_ecoregion_searchable_attributes.xls\u201d.Most of the attribute values and their definitions are as presented by Agriculture and Agri-foods Canada (website: http://sis.agr.gc.ca/cansis/nsdb/ecostrat/1999report/data_tables.html. Attribute value definitions for colluvium were augmented by adding a reference to highly weathered tills, mostly related to areas in the Northern and Southern Arctic considered by some researchers to be recently unglaciated. A variable referencing weathered rock (RW) was also added as it is a significant component in some areas. Changes are shown in italics and coloured red in the table below. The first and second variables (Surfgeo1, Surfgeo2) may be codominant or the second subordinate to the first. In most cases, Surfgeo3was a minor component of the ecoregion but some ecoregions were highly complex and all three variables were judged to be of equal importance. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.SURFICIAL GEOLOGYAttribute ValueDESCRIPTIONIGlaciers: Ice and minor morainal debris.AAlluvial Deposits: stratified silt, sand, clay, and gravel; floodplain, delta, and fan deposits; in places overlies and includes glaciofluvial deposits.mMMarine Mud: Fluid silty clay and clayey silt: deposited as quiet water sediments.sMMarine Sand: Sand and locally gravel; deposited as sheet sands, lags, and beaches.mLLacustrine Mud: Fluid silty clay and clayey silt: deposited as quiet water sediments.sLLacustrine Sand: Sand and locally gravel; deposited as sheet sands, lags, and beaches.EEolian Deposits: sand and minor silt: dunes, blowouts, and undulating plains: In most places overlies deltaic sediments, coarse lacustrine sediments, or glaciofluvial deposits.OOrganic deposits: peat, muck and minor inorganic sediments; large bog, fen, and swamp areas where organic fill masks underlying surficial materials; generally >2 m thickbCColluvial Blocks: Blocks, and rubble with sand and silt; derived from crystalline bedrock, medium grade metamorphic substrate, and cemented sandstone.rCColluvial Rubble:Rubble and silt; derived from carbonate and consolidated fine classic sedimentary rock substrate. Includes highly weathered tillsfCColluvial Fines: Silt, clay, and fine sand: derived from substrate weakly consolidated shale and siltstone substrate. Includes highly weathered tillssCColluvial Sand: Sand and gravel; derived from poorly lithified sandstone and conglomerate substrate. Includes highly weathered tills.L:fMLacustrine Fine Grained: Fine grained silt and clay, locally containing stones: deposited as quiet water sediments.L:cLLacustrine Coarse Grained: sand, silt, and gravel: deposited as deltas, sheet sands and lag deposits.M:fMMarine Fine Grained: Dominantly silt and clay, locally containing stones; deposited as a quiet water sediment.M:cMMarine Coarse Grained: Sand and gravel: deposited as sheet sands, deltas, and extensive flights of beaches.M:MvLag: Sand, gravel, and pockets of fine sediment; thin to discontinued sediment veneer and residual lag developed during marine submergence; includes areas of washed till and rock.GpGlaciofluvial Plain: Sand and gravel: deposited as outwash sheets, valley trains, and terrace deposits.GxGlaciofluvial Complex: Sand and gravel and locally diamicton: undifferentiated ice contact stratified drift, and outwash; locally includes till and rock.TbTill Blanket: Thick and continuous till.TvTill Veneer: Thin and discontinuous till: may include areas of rock outcrop.TvbTill veneer and blanket complex:VQuarternary Volcanics: consolidated lava, breccia and tephra: dominantly basaltic and andesitic in composition; includes flows, volcanic piles and cinder conesRaAlpine Complexes: rock, colluvium, and till: rock and Quarternary deposits complex in an area, characterized by alpine and glacial landforms.RUndivided: rock with minor Quaternary deposits. Includes unweathered and weathered rock.RWWeathered bedrock \u2013 usually shales and sandstones.Surface materialsTwo attribute fields (Surfmat1, Surfmat2) are included under the general category of surface materials. This category is very general and reflects surficial geology categories. Refer to the table below.SURFACE MATERIALSAttribute ValueDESCRIPTIONICICE and SNOWGlacial ice and permanent snowORORGANIC SOILContains > 30% organic matter as measured by weightROROCKRock undifferentiatedSOMINERAL SOILPredominantly mineral particles: contains < 30% organic matter as measured by weightURURBANUrban areas. Note that only a few major urban area polygons are included on SLC source maps, therefore, do not use for tabulating total urban coverage. Not used in NWT attribute list. LandformOne attribute field (Landform) is included. This is the only attribute field that exceeds 8 alphanumeric characters (it is 10 characters in length). The landform reflects the predominant landscape feature within the ecoregion and is taken directly from the three-part name for the ecoregion, which reflects its geographic location, its major landform, and its affinity with climate(e.g., KellerPlainLSEcoregion). The attribute values used for this project are more comprehensive than the options provided under the CanSIS classification system. landformAttribute ValueDESCRIPTIONCoastlandsnarrow linear areas parallel to the seacoast that are influenced by both oceanic and terrestrial processes and that include a variety of landforms.Cst PlainCoastal Plain: see plain.Deltaan alluvial sediment deposit at the mouth of a river, often somewhat triangular in form, frequently flooded and nearly level. High water tables, abandoned channels and oxbow lakes and periodic nutrient-rich sediment deposition are important ecological factors.Foothillslow hills at the base of mountains. For purposes of delineation in the Northwest Territories, an arbitrary elevation range of 200-800 m ASL is used and is reasonably well correlated with breaks in slope between the valleys and the foothills and between the foothills and the mountains. Incised stream channels, uneven topography that creates variable microenvironments, and steeper slopes than the surrounding lowlands and plains are typical. Hillsprominences rising generally no more than about 500 m above the surrounding areas. They may have gentle to abrupt slopes; slope steepness and aspect along with bedrock substrates near or at the mineral soil surface can strongly influence vegetation development. Drainage patterns are well developed relative to those of the surrounding lower-lying areas. In the Northern Arctic, this term and highlands are used to name ecoregions with variable topography that are markedly higher than the surrounding terrain and that often have distinctive bedrock and surficial geology features. Islandsland masses completely surrounded by water.Lowlandan area of low relief at the lower ranges of regional elevation; it receives water inputs from adjacent higher terrain. It is typically imperfectly- to poorly-drained, has a higher proportion of wetlands than other landscape types and is nearly level. Drainage patterns are poorly defined.Mountainsareas that display large differences in relief, usually over 600 m. Bedrock exposures, steep slopes and deeply incised parallel river channels are characteristic, climatic zonation occurs as a result of elevation changes, and microenvironments are highly variable. A range is a row or chain of mountains separated from other mountain ranges by passes or rivers; a ridge is an elongate crest or a linear series of crests. Peninsulaa land mass surrounded on three sides by waterPlainan extensive area that is typically level, gently sloping or hummocky and that can occur at low to high elevations, the latter often as part of high elevation plateaus. It is referred to as a coastal plainwhen it borders the coastline and is influenced by marine and terrestrial factors.Plateauan extensive level to gently sloping upland area at a higher elevation than its surroundings, often underlain by horizontally-oriented bedrock strata. They can be deeply eroded by streams.Rangesee mountains.LANDFORM(cont.)Attribute ValueDESCRIPTIONSlopesareas with variable local relief underlain by a regionally inclined surfaceUplandgeneral term for an area that is higher than the surrounding area, sometimes several hundred metres higher, that are not plateaus or hills. Uplands usually have undulating to hummocky terrain, a higher proportion of moderately well- to well-drained sites than lowlands or plains and a lower proportion of wetlands. Drainage patterns tend to be dendritic (resembling tree roots).Valleyany low-lying area bounded by plateaus, mountains, foothills or plains and traversed by a river.Surface formTwo attribute fields (Surffrm1, Surffrm2) are provided. The table below summarizes 31 classes provided by Agriculture and Agri-foods Canada at the website address referenced above under Surficial Geology. As for surficial geology, the first and second attributes reflect the dominant surface forms referenced in the written descriptions. A one-to-one correspondence between the ecoregion description and the supplied list of surface forms was not always possible; these decisions were most challenging in mountainous areas, where the value for \u201cridged\u201dwas often used to capture the concept of rugged bedrock-controlled terrain in addition to the provided definition that mostly references glacial features. Wetland forms were sometimes included as the second component (Surffrm2) even if they did not cover a majority of the ecoregion because of their significance or uniqueness. For example, one wetland form (snowpatch fens) was added to the list of attributes provided by Agriculture and Agri-foods Canada and referenced in two High Arctic-oceanic ecoregions. The changes are shown in italics and coloured red in the table below. Many of the wetland forms (B04 and most of the entries below that value) were not present in the NWT, but are included here for completeness. SURFACE FORMAttribute ValueDESCRIPTIONDDissectedA dissected (or gullied) pattern providing external drainage for an area.HHummocky (or irregular)A very complex sequence of slopes extending from somewhat rounded concavities (or swales) of various sizes to irregular conical knolls (or knobs) and short discontinuous ridges; there is a general lack of concordance between knolls and swales. Slopes are generally 4-70%. Examples are hummocky moraines and hummocky fluvioglacial landforms.IInclinedA sloping, unidirectional surface with a generally constant slope unbroken by marked irregularity or gullies; a weakly developed dissected pattern provides external drainage for the local area. Slopes are 2-70%; the form of inclined slopes is not related to the initial mode of origin of the underlying material.KKnoll and kettleA chaotic sequence of knolls and kettles (or sloughs), which occupies 15-20% of an area and has no external drainage. Slopes are generally >3%. Examples are morainal plains and hill lands.LLevelA flat or very gently sloping, unidirectional surface with a generally constant slope unbroken by marked elevations and depressions. Slopes are generally <2%. Examples are floodplains and lake plains.MRollingA very regular sequence of moderate slopes extending from rounded and, in some places, confined concave depressions to broad, rounded convexities producing a wavelike pattern of moderate relief. Slope gradients are generally >5% but may be less. This surface form is usually controlled by the underlying bedrock.RRidgedA long, narrow elevation of the surface, usually sharp crested with steep sides; ridges may be parallel, subparallel, or intersecting. Examples are eskers, crevasse fillings, washboard moraines and some drumlins. Includes pronounced terrain associated with rugged bedrock-controlled hill and mountain systems.SSteepErosional slopes of greater than 70% (35°), present on both consolidated and unconsolidated materials. The form of a steep erosional slope on unconsolidated materials is not related to the initial mode of origin of the underlying material. An example is an escarpment.TTerracedScarp face and the horizontal or gently inclined surface (or tread) above it. An example is an alluvial terrace.SURFACE FORM(cont.)Attribute ValueDESCRIPTIONUUndulatingA very regular sequence of gentle slopes that extends from rounded and, in some places, confined concavities to broad, rounded convexities producing a wavelike pattern of low local relief. Slope length is generally less than 0.8 km and the dominant gradient of slopes is usually 2-5%. The terrain lacks an external drainage pattern. Examples are some ground moraines and lacustrine material of varying textures.B04Domed bogA large bog (diameter usually >500 m) with a convex surface rising several metres above the surrounding terrain. The centre usually drains in all directions; small crescentic pools commonly form around the highest point; a concentric pattern is formed if the highest point is in the centre, while an eccentric pattern is formed if the highest point is off-centre. Peat development is usually >3 m.B05Polygonal peat plateau bogA perennially frozen bog rising approximately 1 m above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a nonpermafrost environment.B07Peat plateau bogA bog composed of perennially frozen peat rising abruptly about 1 m from the surrounding unfrozen fen. The surface is relatively flat and even, and commonly covers large areas. The peat was originally deposited in a nonpermafrost environment and is associated in many places with collapse scar bogs or fens.B09Atlantic plateau bogA bog with a flat to undulating surface raised above the surrounding terrain. The bog edges commonly slope steeply downwards to the mineral soil terrain. Large pools scattered on the bog reach depths of 2-4 m.B13Basin bogA bog situated in a basin with essentially closed drainage which receives water from precipitation and runoff from the immediate surroundings. The surface of the bog is flat with peat generally deepest at the centre.B14Flat bogA bog having a flat, featureless surface and occurring in broad, poorly defined depressions. The depth of peat is generally uniform.B15String bogA pattern of narrow (2-3 m wide), low (<1 m high) ridges oriented at right angles to the direction of drainage; wet depressions or pools occur between the ridges. The water and peat are very low in nutrients because the water has been derived from other ombrotrophic wetlands. The peat thickness is >1 m.B16Blanket bogA bog consisting of extensive peat deposits that occur more or less uniformly over gently sloping hills and valleys. The peat thickness is usually < 2 m.B18Slope bogA bog occurring in areas of high rainfall on appreciably sloping land surfaces. The bog is fed by rainwater and by water draining from other nutrient-poor peatlands. The peat may exceed 1 m in thickness.B19Veneer bogA bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drainways during peak runoff. Peat thickness is usually <1.5 m.B20Lowland polygon bogA bog with flat-topped or convex peat surfaces (often referred to as 'high-centre polygons') separated by trenches over ice wedges that form a polygonal pattern when viewed from above. The peat was deposited in a permafrost environment as shown by internal structures.F01Northern ribbed fenA fen with parallel, low peat ridges ('strings') alternating with wet hollows or shallow pools, oriented across the major slope at right angles to water movement. The depth of peat is >1 m.F07Shore fenA fen with an anchored surface mat that forms the shore of a pond or lake. The rooting zone is affected by the water of the lake at both normal and flood levels.F11Slope fenA fen occurring mainly on slow-draining, nutrient-enriched seepage slopes. Pools are usually absent, but wet seepage tracks may occur. Peat thickness is usually <2 m.F13Horizontal fenA fen with a gently sloping, featureless surface. This fen occupies broad, often ill-defined depressions and may interconnect with other fens. Peat accumulation is generally uniform.F14Snowpatch fenFens that form below melting snowbanks in the Arctic or Alpine. Peat accumulation is very limited and thicknesses are usually less than 20 cm.SURFACE FORM(cont.)Attribute ValueDESCRIPTIONS01Stream swampA swamp occurring along the banks of permanent or semipermanent streams. The high water table is maintained by the level of water in the stream. The swamp is seasonally inundated with subsequent sediment deposition.S04Basin swampA swamp developed in a topographically defined basin where water derived locally may be augmented by drainage from other parts of the watershed. Accumulation of well-decomposed peat is shallow (< 0.5 m) at the edge but may reach 2 m at the centre.M06Stream marshA marsh occupying shorelines, bars, stream beds, or islands in continuously flowing watercourses. The marsh is subject to prolonged annual flooding and is commonly covered by thick layers of sediments.M11Shallow basin marshA marsh occurring in a uniformly shallow marsh depression or swale, having a gradual gradient from the edge to the deepest portion; the marsh edge may be poorly defined. Water levels fluctuate rapidly.M14Shore marshA marsh occupying the contact zone between high and low water marks bordering semipermanent or permanent lakes. The marsh, usually found along protected shorelines, behind barrier beaches in lagoons, on islands, or in embayments, is subject to flooding by a rise in lake levels, wind waves, or surface runoff.Permafrost formTwo attribute fields (Prmfrst1, Prmfrst2) capture the primary and secondary permafrost forms in each ecoregion. The documents were reviewed for all permafrost types and a list was compiled that is more comprehensive than that provided by Agriculture and Agri-foods Canada. The attribute values and definitions are provided below.Permafrost FORMAttribute ValueDESCRIPTIONEHEarth hummocks -A hummock having a core of silty and clayey mineral soil which may show evidence of cryoturbation. Earth hummocks are a type of non-sorted circle (see also patterned ground and turf hummock) commonly found in the zone of continuous permafrost. They develop in materials of a high silt and clay content and/or of high ice content.FRFrost heaved/shattered rock -rock that has been pushed to the surface or broken by freeze-thaw cyclesGIGround ice - Layers of segregated ice or ice-organic mixes or ice-mineral soil mixes that do not melt.GLGlacier - A mass of ice that develops as a result of snow and ice accumulation over a long period of time and that moves laterally from the centre of accumulation.HCHigh centre polygons (with low-centre polygons as subdominant) - see low-centre polygonIWIce wedge polygonsLCLow centre polygons (with high-centre polygons as subdominant): A feature of continuous permafrost in wet terrain (e.g., drained lakes). Ice wedges develop in cracks, pushing up soil ridges adjacent to the wedges and creating dams that trap water inside the resulting polygons. The features appear as high-rimmed ridges surrounding wet shallow central pools of water. Over hundreds or thousands of years, peat deposits build up and eventually create a dome-shaped surface; these features are referred to as high-centre polygons.NCNon-sorted circles, stripes - a non-sorted circle is a patterned ground form that is equidimensional in several directions, with a dominantly circular outline which lacks a well-defined border of stones and has a centre composed of a mixture of textures from fine through coarse mixed with gravels, cobbles and boulders. A network of non-sorted circles that meet is referred to as a non-sorted net. Non-sorted stripes form under the same influence of frost action as non-sorted circles, but because they form on slopes, they flow and elongate perpendicular to contour.PAPalsa -A peaty permafrost mound possessing a core of alternating layers of segregated ice and peat or mineral soil material. Palsas are typically between 1 and 7 metres in height and a few metres to 100 metres in diameter. PGPatterned ground - A general term for circles, polygons, stripes, nets and steps created by frost action.Permafrost FORM (cont.)Attribute ValueDESCRIPTIONPIPingo - A mound of earth-covered ice found in the Arctic, Subarctic and Antarctica that can reach up to 70 metres in height and up to 2 kilometres in diameter. The term originated as the Inuit word for a small hill. They are most common in Canada along the coastal plains of the Tuktoyaktuk Peninsula. They form in the former basins of drained lakes. PPPeat plateau - A bog composed of perennially frozen peat, rising abruptly about 1 m from the surrounding unfrozen fen. The surface is relatively flat and even and often covers very large areas. The peat was originally deposited in a non-permafrost environment and is often associated with collapse scars or fens.PPPPolygonal peat plateau - A perennially frozen bog, rising about 1 m above the surrounding fen. The surface is relatively flat, scored by a polygonal pattern of trenches that developed over ice wedges. The permafrost and ice wedges developed in peat originally deposited in a non-permafrost environment. Polygonal peat plateaus are commonly found near the boundary between the zones of discontinuous and continuous permafrost.RRunnels - A pattern of alternating flow channels and interchannel uplands perpendicular to contour. In permafrost-affected areas, light and dark-striped patterns on hill slopes are runnels; the light stripes are usually sparsely treed, lichen covered interchannel areas with permafrost close to the surface and the dark stripes are shallow drainage channels vegetated by dwarf birch, willow and other shrubs with a thicker active layer.RGRock glaciers - ice-cored, often lobe-shaped landforms covered by soil and rock.RTRetrogressive thaw (or flow) slides - A slide that consists of a headwall containing ice or ice-rich sediment, which retreats in a retrogressive fashion through melting, and a debris flow formed by the mixture of thawed sediment and ice that has slid down the failure surface to the base of the slope and frequently into a thermokarst depression, lake, or pond. SCSorted circles, stripes - a sorted circle is permafrost-related patterned ground that forms under extremely cold conditions when frost action pushes parent materials to the surface; the centre of the circle is occupied by sparsely vegetated finer-textured materials, with a ring of gravels, cobbles and boulders around the outside. A network of sorted circles that meet is referred to as a sorted net. Sorted stripes form under the same influence of frost action as sorted circles, but because they form on slopes, they flow and elongate perpendicular to contour.SOSolifluction - the downslope movement of water-saturated soil in a viscous or plastic state over an impermeable layer, often permafrost. The presence of an impermeable permafrost layer prevents the internal drainage of the soil, forcing the soil to flow down the slope. During warm periods the surface layer thaws and slides across the frozen layer, slowly moving downslope due to frost heave.TKThermokarst -The process by which characteristic landforms result from the thawing of ice-rich permafrost or the melting of massive ice. TUTurf hummocks - a permafrost-related northern Arctic landform generally less than 1m across and 50cm in height that is often associated with aeolian materials (sands, silts). It is more or less circular and is initially forced upward by frost action. It receives solar energy from all sides during the 24-hour days of the brief growing season, promoting plant growth which traps windborne silt and sand particles, resulting in the gradual accretion of materials and growth of the hummock.VBVeneer bog - A bog occurring on gently sloping terrain underlain by generally discontinuous permafrost. Although drainage is predominantly below the surface, overland flow occurs in poorly defined drainage ways during peak runoff. Peat thickness is generally less than 1.5 metres.Soil developmentThree dataset attribute fields (Soil1, Soil2, Soil3) capture soil information from the written ecoregion descriptions. A subset of the soil table provided by Agriculture and Agri-food Canada was used, as many of the soil types in the full table do not occur in the NWT. As for surficial geology, the first and second variables (Soil1, Soil2) may be codominant or the second subordinate to the first. In some cases, a value for Soil1and Soil3was provided, with no value for Soil2. This indicates that Soil1is dominant, and Soil3is only present over minor areas within the ecoregion. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.Attribute ValueDESCRIPTIONFGray LuvisolHGHumic GleysolHRHumic RegosolIBrunisol Gray LuvisolLGLuvic GleysolMEutric BrunisolOOrganic CryosolPDystric BrunisolRRegosolSStatic CryosolTTurbic CryosolUGleysolXFibrisolYMesisolZHumisol#Water, Rock or IceLand CoverThree attribute fields (Landcov1, Landcov2, Landcov3) capture vegetation information from the written descriptions. Because vegetation patterns are in part how ecoregions are described, there is considerable variation from one Level II ecoregion to another, and the 17 classes provided by Agriculture and Agri-food Canada were considered inadequate to represent significant vegetation trends. A review of all five documents consequently resulted in the establishment of specific attribute values for major vegetation types within the Taiga Plains, Taiga Shield, and Cordillera. The Southern Arctic and Northern Arctic classifications are based mainly upon the Circumpolar Arctic Vegetation Map community types (CAVM Team 2003) and are more consistently defined and described, but also had some unique values. Attribute values specific to each area are presented in tables below; to identify the types uniquely, they are prefaced with TP:(Taiga Plains), TS:(Taiga Shield), CO:(Cordillera), SA:(Southern Arctic) and NA:(Northern Arctic).Landcov1and Landcov2were generally used to capture the major vegetation types; if there was a significant vegetation type that did not occur over large areas but was considered diagnostic (e.g. alpine fir types in the southern mountains), it was included as Landcov3even if there were other vegetation communities that covered larger areas. The written descriptions should be consulted in cases where analysis requires a more specific assessment of proportion.LAND COVER (VEGETATION): TAIGA PLAINSAttribute ValueDESCRIPTIONTP:F1Fen: SedgeTP:F2Fen: shrub-sedgeTP:F3Fen or bog: Black spruce - shrub - mossTP:F4Fen: Black spruce - larchTP:FC1Forest: Jackpine - shrub - lichenTP:FC2Forest: Jackpine - tall shrub - lichenTP:FC3Forest: Lodgepole and jackpine X lodgepole hybridTP:FC4Forest: White spruce - jack pineTP:FC5Forest: Spruce - lichenTP:FC6Forest: spruce-shrub (includes both black and white spruce)TP:FC7Forest: white spruceTP:FC8Forest: black spruce - shrub - lichenTP:FD1Forest: Deciduous (aspen, balsam poplar, paper birch)TP:FD2Forest: Paper birchTP:FM1Forest: Mixedwood jackpine - aspenTP:FM2Forest: Spruce - paper birch (includes white and black spruce)TP:FM3Forest: Mixedwood aspen - paper birch - spruce - jackpineTP:M1Marsh: bulrush - sedgeTP:M2Meadow: herb-grass-shrubTP:S1Shrubland: dwarf birch - dryland sedge - lichenTP:S2Shrubland: dwarf birch - Labrador tea - peat moss TP:S3Shrubland: dwarf birch - paper birch (post-fire regeneration). May include white spruce and black spruce regeneration, and may be one or both deciduous species.TP:S4Shrubland: dwarf birch - willowTP:S5Shrubland: lichen - Labrador tea - dwarf birch (polygonal peat plateaus)TP:S6Shrubland: willow-alderTP:S6Shrubland: willowTP:S7Shrubland: dryTP:TSTundra: ShrubTP:W1Woodland: White spruce - shrub-lichen woodlandTP:W2Woodland: Black spruce - low shrub- lichenLAND COVER (VEGETATION): TAIGA SHELDAttribute ValueDESCRIPTIONTS:F1Fen: sedge (including a minor component of shrubs)TS:F2Fen: shrub (including a minor component of sedges)TS:FC1Forest: Jackpine (may include minor paper birch, white spruce, black spruce)TS:FC2Forest: Spruce - moss (undifferentiated white and black spruce)TS:FC3Forest: Spruce - shrub - lichen (undifferentiated white and black spruce)TS:FD1Forest: DeciduousTS:FM1Forest: Mixedwood (any combination of aspen, balsam poplar, and birch with white spruce, black spruce, and jackpine)TS:FM2Forest: Mixedwood white spruce - paper birchTS:FM3Forest: Mixedwood jackpine - paper birchTS:NFLLichen on rockTS:S1Shrubland: Dwarf birch - paper birch (post-fire regeneration)TS:S2Shrubland: lichen - Labrador tea - dwarf birch (peat plateaus)TS:T1Tundra: lichen - grass heathTS:T2Tundra: sedgeTS:T3Tundra: shrub heathTS:T4Tundra: lichen-sedge-shrub complexTS:W1Woodland: White spruce - shrub - lichen TS:W2Woodland: Spruce - shrub - lichenTS:W3Woodland: Black spruce - lichenLAND COVER (VEGETATION): CORDILLERAAttribute ValueDESCRIPTIONCO:F1Fen: Black spruce - (larch) - shrubCO:F2Fen: Sedge - cottongrass tussockCO:F3Fen: Shrub - sedgeCO:FC1Forest: JackpineCO:FC2Forest: lodgepole pineCO:FC3Forest: Spruce - shrubCO:FC4Forest: White spruceCO:FC5Forest: White spruce - alpine firCO:FD1Forest: Deciduous (aspen, balsam poplar, paper birch)CO:FM1Forest: Mixedwood (white spruce, aspen, jackpine, lodgepole pine)CO:FM2Forest: Mixedwood (spruce, balsam poplar, birch, tall shrub)CO:NFL1Lichen - RockCO:Rrock barrensCO:S1Shrubland: dwarf birch - willow - paper birch (post-fire regeneration)CO:S2Shrublands: Tall (alder, willow, birch)CO:S3Shrublands: DryCO:S4Shrublands: dwarf birch - willowCO:T1Tundra: herb (rich, diverse, Pacific-Cordilleran species)CO:T2Tundra: LichenLAND COVER (VEGETATION): CORDILLERA (cont.)Attribute ValueDESCRIPTIONCO:T3Tundra: Sedge - cottongrassCO:T4Tundra: sedge-shrubCO:T5Tundra: shrubCO:W1Woodland: alpine firCO:W2Woodland: black spruce - larch - mossCO:W3Woodland: black spruce - shrub - moss - lichenCO:W4Woodland: White spruce - alpine firCO:W5Woodland: White (black) spruce - shrub - lichenLAND COVER (VEGETATION): SOUTHERN ARCTIC*Attribute ValueDESCRIPTIONSA:B1Cryptogam \u2013herb barren SA:B2Cryptogam \u2013barren complex (bedrock) SA:CMCoastal MarshSA:G2Graminoid \u2013prostrate dwarf-shrub \u2013forb tundraSA:G3Nontussock sedge \u2013dwarf-shrub \u2013moss tundraSA:G4Tussock-sedge \u2013dwarf-shrub \u2013moss tundra SA:P1Prostrate dwarf-shrub \u2013herb tundraSA:S1Erect dwarf-shrub tundra SA:S2Low-shrub tundraSA:T1Tundra: lichen - grass heath (continuation of Taiga Shield)SA:T2Tundra: sedge (continuation of Taiga Shield)SA:T3Tundra: shrub heath (continuation of Taiga Shield)SA:TGTree groves / sparse tree growthSA:W2Sedge \u2013moss \u2013dwarf-shrub wetland SA:W3Sedge \u2013moss \u2013low-shrub wetland LAND COVER (VEGETATION): NORTHERN ARCTIC*Attribute ValueDESCRIPTIONNA:B1Cryptogam \u2013herb barren NA:B2Cryptogam \u2013barren complex (bedrock) NA:B3b-cNon-carbonate mountain complex NA:B4bCarbonate mountain complex NA:G1Rush \u2013grass\u2013forb \u2013cryptogam tundra NA:G2Graminoid \u2013prostrate dwarf-shrub \u2013forb tundra NA:G3Nontussock sedge \u2013moss \u2013dwarf-shrub tundraNA:P1Prostrate dwarf-shrub \u2013herb tundra NA:P2Prostrate/hemiprostrate dwarf-shrub tundraNA:S2Low-shrub tundra NA:W1Sedge \u2013grass \u2013moss wetland * the code values following SA: and NA: are those defined by the Circumpolar Arctic Vegetation Map (CAVM Team 2003), except for SA:T1, SA:T2, SA:T3 (continuation of Taiga Shield vegetation to the north) and SA:CM (coastal marshes of Mackenzie Delta, too small to address in the circumpolarmap survey.REFERENCES CITEDCAVM Team. 2003. 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It was understood that updates to the BCR layer would be made every three years, but this did not begin to occur in an official capacity until 2009. \n____________________________________________________________________________________________________________________________________________________\nThe USFWS created the original BCR layer (Arc/INFO format) in 1999 with help from Bird Studies Canada (BSC). BSC has hosted the master copy of the file on its website ever since. Following initial use of the layer, some inconsistencies were found, at which point Environment Canada made substantial edits to the base map (primarily to improve the resolution of the Canadian coastline). Subsequently, BSC made further edits to the base map, embedded lakes, and attributes; and made other fixes to improve the utility of the layer for analysis purposes (e.g., range map analyses for the Partners in Flight Species Assessment). \n_____________________________________________________________________________________________________________________________________________________\nAs part of a formal review process led by US NABCI, beginning in 2009, six changes were proposed for US BCRs. Upon review, proposed changes were either approved in their original state, or approved with modifications. These were then sent to BSC for implementation. The changes have now been completed and are described in detail in this document. \nSeven proposed changes to Canadian BCRs, as requested by NABCI Canada, were also incorporated. \nEdits from 2009 completed by Andrew Couturier, Sandra Marquez, and Eva Jenkins, Bird Studies Canada. \n_____________________________________________________________________________________________________________________________________________________\nCitation:\nBird Studies Canada and NABCI. 2014. Bird Conservation Regions. 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Canada's boreal region is a vast mosaic of forests, wetlands, rivers and lakes, but anthropogenic disturbances have impacted these ecosystems resulting in habitat loss, fragmentation and threats to biodiversity. Across Canada various geospatial datasets representing anthropogenic disturbance exist for timber harvesting, hydro-electric activity, settlement and oil & gas activities; however, these products often vary in scale, attributes, time period, and mapping technique. Driven by the need for national data as part of the 2011 boreal caribou science assessment, a standardized methodology was developed and implemented to create a single geospatial dataset representing anthropogenic disturbances across a significant portion of Canada\u2019s boreal ecosystem. The boreal ecosystem anthropogenic disturbances (BEAD) data is a vector disturbance dataset of individual linear and polygonal disturbance types that were manually collected through the interpretation of 2008 to 2010 Landsat imagery at a 1:50,000 viewing scale. Summary results identified a total polygonal anthropogenic disturbance footprint of approximately 24 million ha with forest cutblocks accounting for more than 60 % of mapped polygonal disturbance. Linear disturbance features across the boreal total approximately 600,000 km with roads and seismic exploration lines contributing to more than 80 % of the mapped linear disturbances. Edited in 2016 to include only linear features within the NT1 boreal woodland caribou population range. (A. Smith, GNWT)", "geometryType": "esriGeometryPolyline", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Pasher, J., E. Seed, and J. Duffe. 2013. 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Canada's boreal region is a vast mosaic of forests, wetlands, rivers and lakes, but anthropogenic disturbances have impacted these ecosystems resulting in habitat loss, fragmentation and threats to biodiversity. Across Canada various geospatial datasets representing anthropogenic disturbance exist for timber harvesting, hydro-electric activity, settlement and oil & gas activities; however, these products often vary in scale, attributes, time period, and mapping technique. Driven by the need for national data as part of the 2011 boreal caribou science assessment, a standardized methodology was developed and implemented to create a single geospatial dataset representing anthropogenic disturbances across a significant portion of Canada\u2019s boreal ecosystem. The boreal ecosystem anthropogenic disturbances (BEAD) data is a vector disturbance dataset of individual linear and polygonal disturbance types that were manually collected through the interpretation of 2008 to 2010 Landsat imagery at a 1:50,000 viewing scale. Summary results identified a total polygonal anthropogenic disturbance footprint of approximately 24 million ha with forest cutblocks accounting for more than 60 % of mapped polygonal disturbance. Linear disturbance features across the boreal total approximately 600,000 km with roads and seismic exploration lines contributing to more than 80 % of the mapped linear disturbances.Edited in 2016 to include only polygon features within the NT1 boreal woodland caribou population range. (A. Smith, GNWT)", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Pasher, J., E. Seed, and J. Duffe. 2013. Development of a boreal ecosystem anthropogenic disturbance layers for Canada based on 2008 to 2010 Landsat imagery. 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This data allowed researchers to better understand the attributes that have a known effect on caribou population persistence. The mapping process was established to create a nationally consistent, reliable and repeatable geospatial dataset that followed a common methodology. The methods developed were focused on mapping disturbances at a specific point of time, and were not designed to identify the age of disturbances, which can be of particular interest for disturbances that can be considered non-permanent, for example cutblocks. The resultant datasets were used for caribou resource selection function,habitat modeling, and assess overall disturbance levels on each caribou ranges. Anthropogenic disturbances within 57 caribou ranges across Canada were mapped. The ranges were defined by individual Provinces and Territories across Canada. Disturbances were mapped across these ranges using 2008-2010 Landsat-5 satellite imagery to provide the most up to date data possible. Originally some areas were mapped to match the date of collected caribou demographic data, however more recent imagery was used and additional disturbance features that were seen since the original mapping date were added. Within the context of this project, anthropogenic disturbance was defined as any human-caused disturbance to the natural landscape that could be visually identified from Landsat imagery at a viewing scale of 1:50,000. A minimum mapping unit (MMU) of 2 ha or approximately 22 contiguous Landsat pixels was selected. Each disturbance feature type was represented in the database by a line or polygon depending on their geometric description. Polygonal disturbances included: cutblocks, mines, reservoirs, built-up areas, well sites, agriculture, oil and gas facilities, as well as unknown features. Linear disturbances included: roads, railways, powerlines, seismic exploration lines, pipelines, dams, air strips, as well as unknown features. For each anthropogenic feature type, a clear description was established (see Appendix 7.2 of the science assessment) to maintain consistency in identifying the various disturbances in the imagery by the different interpreters. Various ancillary vector datasets were used as aids in detecting, classifying and digitizing disturbances on the Landsat imagery (a table listing these datasets and their sources has been included in a separate file). Ancillary data was used to guide interpretation and feature labelling since the ancillary data was often variable across the country in terms of completeness as well as scale. As a result, features were only digitized if they were visible in the Landsat imagery at a viewing scale of 1:50,000. A 2nd interpreter quality control phase was carried out to ensure high quality, completete and consistent data collection. A quality assessment analysis, since an actual accuracy assessment was not possible, using high resolution SPOT imagery was carried out on a sample basis. Results are included in accompanying documentation. The vector data was buffered by 500m (radius) representing the zone of influence impacting boreal caribou herds in order to calculate range disturbance levels as well as for use in the integrated risk assessment analysis.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Mapping methods developed by Chris Patterson, Evan Seed, Jon Pasher and Jason Duffe in the National Wildlife Research Centre's Geomatics Lab (Wildlife and Landscape Science and Technology, Environment Canada) with support from Global Forest Watch Canada (Peter Lee, Colleen Curan and Matthew Hanneman). 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As a caribou population increases from a nadir in abundance in its natural cycle, the animals extend their seasonal movements from the center of habitation and gradually use more areas and travel greater distances. The proposed boundaries of the COH are based on a) recent caribou collar location data that reflects its current contracted annual range use at a time when the population is critically low, and b) GIS data that comprise locations and characteristics of important areas and habitats for caribou that have been identified and shared by traditional knowledge holders on the range of the Bathurst herd. The current core use area was delineated based on a 95% annual utilization distribution (UD) polygon depicting annual range use by cows for a total of 70.5 caribou-years between 2015 and 2017. The 95% annual UD was superimposed over available traditional knowledge datasets that were made available through the Working Group and represented seasonal migration routes, as well as water crossings and land bridges. Based on the overlay with traditional knowledge datasets, we expanded the 95% annual UD in two areas to include land bridges, priority water crossings and associated migration pathways. As a final illustrative step, the COH was overlayed with the weighted relative range sensitivity map (see Section 4.2.3.2 of the Bathurst Caribou Range Plan) and the range assessment areas (see Section 3.1.5 of the Bathurst Caribou Range Plan) to further highlight important areas for Bathurst caribou at the annual range scale.The boundaries of the COH should be considered preliminary and revisited as new information becomes available and through the regular assessments of the BCRP.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Bathurst Range Plan Working Group", "parentLayer": { "id": 112, "name": "Bathurst Caribou Range Plan" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 0, 0, 0 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 230, 0, 0, 255 ], "width": 2 } }, "label": "", "description": "" }, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -1243939.2185999975, "ymin": 2241428.7168999985, "xmax": -468965.1471000016, "ymax": 3145136.6787, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "RAA", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "FID", "domain": null }, { "name": "RAA", "type": "esriFieldTypeString", "alias": "RAA", "length": 20, "domain": null }, { "name": "CEMF_STAT", "type": "esriFieldTypeString", "alias": "CEMF_STAT", "length": 20, "domain": null }, { "name": "CDF_ZONE", "type": "esriFieldTypeString", "alias": "CDF_ZONE", "length": 10, "domain": null }, { "name": "SourceLayer", "type": "esriFieldTypeString", "alias": "Source Layer", "length": 100, "domain": null }, { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "SHAPE.STArea()", "type": "esriFieldTypeDouble", "alias": "SHAPE.STArea()", "domain": null }, { "name": "SHAPE.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "SHAPE", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1708_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1558_idx", "fields": "SHAPE", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "SHAPE.STArea()", "shapeLengthFieldName": "SHAPE.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 116, "name": "Direct Disturbance Footprint", "type": "Feature Layer", "description": "Direct human disturbance footprint refers to the area directly affected by human activities, such as mine sites, roads or airstrips. These human disturbance features directly affect caribou habitat. The direct human disturbance footprint mapping formed the basis for the Bathurst Caribou Range Plan disturbance assessment, with estimated zones of influence applied to each feature. The human land use feature mapping was developed iteratively between 2014 to 2016 by compiling and merging available GIS information including the Government of Northwest Territories Cumulative Impact and Monitoring Program (CIMP) database, the National Road Network, and mineral industry-provided information used to support project assessment and permitting activities. The human feature mapping database includes both existing and future potential human features based on three potential land use scenarios. Time T1 is the existing situation (2016), with T2 \u2013 T5 representing the future scenario period 2022 to 2040. Some features are present all season, while others are winter only. The current version of mapping is 5.0 and was last updated in May, 2016. Detailed mapping methods and assumptions regarding the land use scenarios are described in Appendix A of the Caribou Range Assessment and Technical Information developed in support of the Bathurst Caribou Range Planning Exercise. Please contact Karin Clark, Cumulative Effects Biologist, GNWT to obtain a copy of this report.While all attempts have been made to accurately represent and classify existing and future potential human land use features and surface disturbances, at this time individual features have not been checked for accuracy by GNWT staff or other users.Feature TypeFCODEDescriptionLINEAR FEATURES(roads, trails and utility corridors)ARAll-season Access Road(average 10m width)Any all-season road, including roads in Settlements. ECMajor Electrical Transmission Corridor(average 30m width)Any major electrical utility corridor (e.g., Snare River).HWPublic All-season Paved Highway(average 60m width)Any all-season paved highway (e.g., NWT Highway #3 and #4).MARMainline All-season Access (Haul) Road(average 20m width)Any major all-season access or haul road (e.g., current Ekati Misery Road or future Izok Corridor road).WRWinter Road(average 12m width)All winter roads (excluding main Tibbit-Contwoyto Winter Road).WR_TCMain Tibbitt to Contwoyto Winter Road(average 40m width)Mainline Tibbit to Contwoyto Winter Road.POLYGONAL FEATURES**(mine sites, settlements, camps and similar)AIRSTRIPAirstripActive airstrip with paved or unpaved surfaces.CIMP Feature Class: RunwayNote: Many runways associated with CAMP may be missing. The Runway feature class in the CIMP database may be under-reported. Where known, additional AIRSTRIP features were added to the CIMP database.CAMPCampMineral exploration camps, lodges and similar.CIMP Feature Class: CampNote: This feature class includes a variety of different camp types \u2013 lodges, outfitting, highway, research, etc. The most common type of CAMP appears to be mineral exploration camp (the same ZOI has therefore been applied as MIN_EXPL).COMMCommunication TowerCIMP Feature Class: CommunicationsNote: Only a few communications towers are contained in the CIMP database; these features may be under-reported.GEN_INDGeneral IndustrialA variety of general industrial disturbances.CIMP Feature Class: General Industrial is a \u201ccatch-all\u201d category of several CIMP features: Industrial, Culvert Replacement, Fuel Storage, Geotechnical, Oil and Gas, Road Private, Road Public, Staging Area, Woods / Forestry OperationsNote: Most Road Private and Road Public appear to be gravel pits or clearings associated with the major highways (Highway # 3 and #4).MIN_EXPLMineral ExplorationMineral exploration-related infrastructure and disturbances.CIMP Feature Class: Mineral Exploration is comprised of several CIMP features, including selected Mining Exploration, Mining and Milling \u2013 Water, Mining Exploration \u2013 Mine Shaft.Note: There was no single CIMP feature available to represent Mineral Exploration. Many Camp features are also associated with Mineral Exploration activities.MINE_ACTIVMinesite (Active)Minesites under construction or in production.CIMP Feature Class: Selected Mining Explorationand Mining and Milling \u2013 Waterfeatures to represent active mines (i.e., Ekati, Diavik, and Gahcho Kué).Note: Several other data sources were used to supplement the CIMP features, as required.MINE_PASTMinesite (Past or Closed)Past or closed minesites, either abandoned or under active reclamation.CIMP Feature Class: Closed or past mines are represented by selected Mining Explorationor Miscellaneousfeatures from the CIMP database (e.g., Lupin, Jericho, Tundra, Rayrock, etc.).Note: In CIMP database, many past mine footprints were classified as Miscellaneous features; where known, they have been re-classified as MINE_PAST.MISCMiscellaneousA variety of industrial and non-industrial surface disturbances or infrastructure.CIMP Feature Class: Miscellaneous features are represented by several CIMP feature classes, including Miscellaneous, Research Projects, and Unknown.Note: Some Miscellaneous features in CIMP database are old mine sites, quarries, mineral exploration, communications, etc. Where possible, obvious features were classified as a more accurate feature category. Most CIMP database Miscellaneous features are located along Hwy #3 and #4. PORTMarine PortFuture proposed or conceptual marine port facilities in Nunavut on the Arctic coastline (e.g., Grays Bay, Bathurst Inlet).CIMP Feature Class: No equivalent in CIMP database.Note: This feature class was added to represent proposed future port facilities to support mineral development in Nunavut (e.g., Grays Bay as part of Izok Road Corridor, Bathurst Inlet as part of BIPAR concept).POWR_GENPower Generation FacilityHydro power generation facilities (dams, spillways, powerhouses, and associated)CIMP Feature Class: Power Generation Facility(i.e., Snare River, Bluefish, Taltson).Note: associated transmission line clearings and infrastructure is classified as EC (electrical transmission corridor).QUARRYQuarryAny excavation site used for purpose of developing aggregate, sand, crushed rock, etc.CIMP Feature Class: QuarryingNote: Quarry features are likely under-reported in CIMP database. 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Land use features, such as roads, settlements or mine sites, have a directphysical footprint that results in habitat loss or alteration. An area of indirectdisturbance may exist around these physical footprints, where noise, dust, smells or other factors influence caribou\u2019s use of habitat. This area of indirect disturbance around a human development feature is known as the zone of influence (ZOI). Caribou may avoid these zones of influence, use them less frequently, exhibit altered behavior,or have a higher mortality risk from harvest or predation within them. In GIS mapping, ZOI is estimated as a spatial buffer of a defined distance around a human development feature.The amount of direct and indirect human-caused disturbance in the Bathurst range planning area was calculated from an integrated GIS data set of human land use features/surface disturbances developed as part of the range planning exercise. The human land use feature mapping was created by compiling and merging available GIS information, with the Government of NWT Cumulative Impact Monitoring Program (CIMP) database (CIMP 2015) being the main input, supplemented and modified where necessary by the National Road Network and mineral industry-provided information used to support project assessment and permitting activities. Detailed mapping methods are described in Appendix A of the Caribou Range Assessment and Technical Information report developed in support of the Bathurst Caribou Range Planning process. Please contact Karin Clark, Cumulative Effects Biologist, GNWT to obtain a copy of this report.The ZOI extent around each human development feature was estimated based on literature reviews and values used in recent environmental assessments. Average ZOI extents for different feature types were used based on reported values and supportable rationale. The rationale and literature sources used to estimate ZOI extents are listed in Appendix B of the same aforementioned report.Human land use feature types represented in the Bathurst range planning area human development database, and their estimated zones of influence (ZOI) on barren-ground caribou.Feature TypeFeature ClassDescriptionEstimated ZOI (km)LinearAll-season Access RoadAny all-season road, including roads in Settlements (average 10m width)5Major Electrical Transmission CorridorAny major electrical utility corridor (e.g., Snare River) (average 30m clearing width)4Public All-season Paved HighwayAny all-season paved highway (e.g., NWT Highway #3 and #4) (average 60m clearing width)5Mainline All-season Access (Haul) RoadAny major all-season access or haul road (e.g., current Ekati Misery Road or potential future Izok Corridor road) (average 20m width)5Winter RoadAll winter roads (except main Tibbit to Contwoyto Winter Road) (average 12m width)1Tibbit to Contwoyto Winter RoadMainline Tibbit to Contwoyto Winter Road (average 40m width)4PolygonalAirstripActive airstrip with paved or unpaved surface5CampMineral exploration camp, lodges or similar5Communication TowerCommunication tower1General IndustrialVariety of general industrial features1Mineral ExplorationMineral exploration-related infrastructure and disturbances5Minesite (Active)Minesites under construction or in production14Minesite (Past or Closed)Past or closed minesites, either abandoned or under active reclamation5MiscellaneousVariety of uncertain industrial or non-industrial surface disturbances or infrastructure.1Marine PortFuture proposed or conceptual marine port/laydown facilities in Nunavut on the Arctic coast (e.g., Grays Bay or Bathurst Inlet)5Power Generation FacilityHydro power generation facilities (dams, spillways, powerhouses, and associated)5QuarryAny excavation site used for the purpose of developing aggregate, sand, crushed rock, etc.5SettlementAny permanent settlement with a recognized municipal boundary (e.g., City of Yellowknife, Whatì, etc.)15ZOI buffers from adjacent human land use features may overlap. To avoid double-counting ZOI buffers when calculating total human disturbance, ZOI buffers were applied to footprints in a hierarchy (Table 3), based on the following considerations:features with the largest ZOI assumptions occurred at the top of the hierarchy to reflect the relative magnitude of influence on caribou; polygonal features were ranked higher than linear features (with the same ZOI assumption), because the ZOIs assumptions reflect disturbance activities, which would likely be more consistent over time at a small polygonal feature compared to activity along a road. Also, from a practical perspective, the dissolve function in the GIS is simpler when a polygonal feature is ranked higher, because it eliminates the situation where a road (and associated ZOI) would bisect a polygonal feature if it happened to run through it. There would be many exceptions to these base assumptions, especially if one were to incorporate a feature-specific description of the intensity of activity associated with a polygonal or linear feature. 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The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 106, 135, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 40, 146, 199, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 145, "name": "Bathurst Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 80, 100, 58, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 171, 205, 102, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 146, "name": "Beverly Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 166, 234, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 204, 92, 180, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 147, "name": "Bluenose-East Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 109, 108, 186, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 158, 169, 247, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 148, "name": "Bluenose-West Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 168, 56, 0, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 232, 136, 107, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 149, "name": "Cape Bathurst Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 0, 168, 132, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 166, 245, 234, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 150, "name": "Porcupine Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. Draft - 2-month interim status report. Committee on the Status of Endangered Wildlife in Canada.Nagy, J.A., D. L. Johnson, N. C. Larter, M. W. Campbell, A. E. Derocher, A. Kelly, M. Dumond, D. Allaire, and B. Croft. 2011. Subpopulation structure of caribou (Rangifer tarandusL.) in arctic and subarctic Canada. Ecological Applications 21:2334\u20132348. http://dx.doi.org/10.1890/10-1410.1Poole, K. 2011. Methodology and sources for preparing seasonal shape files for caribou herds for CARMA. Unpublished document, Aurora Wildlife Research. 11 pp.", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102002, "latestWkid": 102002 }, "copyrightText": "Suggested citation: Environment and Natural Resources. 2017. Barren-ground caribou annual ranges and calving areas by herd (subpopulation). Northwest Territories Species at Risk shapefiles. Government of the Northwest Territories, Yellowknife, NT.\n\nContact: Wildlife Biologist (Species at Risk), Environment and Natural Resources, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca\n\nComposite shapefile was developed by Bonnie Fournier, GNWT-ENR, Yellowknife NT.", "parentLayer": { "id": 153, "name": "Barren Ground Caribou Annual Range and Calving Areas" }, "subLayers": [], "minScale": 0, "maxScale": 0, "drawingInfo": { "renderer": { "type": "uniqueValue", "field1": "Range_Type", "field2": null, "field3": null, "defaultSymbol": null, "defaultLabel": null, "uniqueValueInfos": [ { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 217, 217, 0, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Calving", "label": "Calving Area", "description": "" }, { "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 255, 255, 115, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 0, 0, 0, 0 ], "width": 0.4 } }, "value": "Annual", "label": "Annual Range", "description": "" } ], "fieldDelimiter": "," }, "transparency": 30, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": -2066224.9433000013, "ymin": 1858935.7982, "xmax": 1512400.076899998, "ymax": 4138425.237399999, "spatialReference": { "wkid": 102002, "latestWkid": 102002 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeAsHTMLText", "displayField": "FeatureName", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": [ { "name": "OBJECTID", "type": "esriFieldTypeOID", "alias": "OBJECTID", "domain": null }, { "name": "FeatureName", "type": "esriFieldTypeString", "alias": "FeatureName", "length": 250, "domain": null }, { "name": "Range_Type", "type": "esriFieldTypeString", "alias": "Range_Type", "length": 50, "domain": null }, { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape", "domain": null }, { "name": "Shape.STArea()", "type": "esriFieldTypeDouble", "alias": "Shape.STArea()", "domain": null }, { "name": "Shape.STLength()", "type": "esriFieldTypeDouble", "alias": "Shape.STLength()", "domain": null } ], "geometryField": { "name": "Shape", "type": "esriFieldTypeGeometry", "alias": "Shape" }, "indexes": [ { "name": "R1869_pk", "fields": "OBJECTID", "isAscending": true, "isUnique": true, "description": "" }, { "name": "S1685_idx", "fields": "Shape", "isAscending": true, "isUnique": true, "description": "" } ], "subtypes": [], "relationships": [], "canModifyLayer": true, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query,Data", "maxRecordCount": 1000, "supportsStatistics": true, "supportsAdvancedQueries": true, "supportedQueryFormats": "JSON, geoJSON", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": true, "supportsHavingClause": true, "supportsCountDistinct": true, "supportsOrderBy": true, "supportsDistinct": true, "supportsPagination": true, "supportsTrueCurve": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": true }, "supportsDatumTransformation": true, "hasGeometryProperties": true, "geometryProperties": { "shapeAreaFieldName": "Shape.STArea()", "shapeLengthFieldName": "Shape.STLength()", "units": "esriMeters" }, "dateFieldsTimeReference": null, "supportsCoordinatesQuantization": true }, { "currentVersion": 10.91, "id": 151, "name": "Qamanirjuaq Herd", "type": "Feature Layer", "description": "Barren-ground caribou annual ranges and calving areas by herd (i.e. subpopulation). The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. 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The supplementary table BIO_ENR_WFE_SARA_AttributeTable contains additional attribute information for this species and its status and range in the NWT. All barren-ground caribou subpopulations considered by COSEWIC (2016) as part of Designatable Unit 3 are included in this shapefile. See COSEWIC (2011) for details on the Designatable Unit. Subpopulation structure of caribou (Rangifer tarandusL.) is as described by Nagy et al. (2011) for the Qamanirjuaq, Ahiak (i.e. Queen Maud Gulf), Beverly, Bathurst, Bluenose-East, Bluenose-West, Cape Bathurst, Lorillard and Wager Bay subpopulations. Other types of caribou (e.g. Dolphin and Union, Peary, mountain woodland, boreal woodland) are not included. Their ranges are available as separate NWT species at risk range shapefiles. Some of their ranges overlap with the barren-ground caribou ranges in this shapefile.Important notes: There is year-to-year variation in the areas used by barren-ground caribou, and there has been range contraction for several herds as they have reached lower numbers. Range information is being updated and is subject to change.If shapefiles are being used to consider potential impacts of development on barren-ground caribou, Environment and Natural Resources recommends seeking further information on seasonal ranges.Polygons were derived using collar data from Government of Nunavut, Government of the Northwest Territories, Yukon Environment and United States Fish and Wildlife Service. \u201cCollar data\u201d provide information on range use by caribou that were collected over many years by remotely tracking locations of caribou fitted with radio-collars using satellite telemetry. Composite shapefile was developed by GNWT ENR, Yellowknife. Details on the origin of each polygon are provided in the table below:Herd (subpopulation)Annual rangeCalving areaPorcupineObtained from the Porcupine Caribou Technical Committee. As displayed on the Porcupine Caribou Management Board website (http://www.pcmb.ca/images/habitat/PCH-Rangemap2.jpg)Prepared by K. Poole (Poole 2011) for CARMA (2012). Cumulative extent of calving (1-21 June) from 1985 \u2013 2010. 90% fixed kernel polygon using all available satellite collar data, obtained from Yukon Environment, combined among years.Tuktoyaktuk PeninsulaCreated byA. D'Hont, ENR in 2013. Produced using caribou collar telemetry data 2006-2012. Contours accumulate the number of unique marked individuals that visit within a 10x10km cell; The contour shown by this polygon is 5%. The percentages are based on the highest count (=100%) of unique collared individuals for that herd occurring within any 10km x 10km block, illustrating the relative degree of use of specific land areas over a defined period of time. Created byA. D'Hont, ENR in 2013.Cape BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground A from Nagy et al. (2011) Fig. 1Bluenose-WestGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground B from Nagy et al. (2011) Fig. 1Bluenose-EastGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground C from Nagy et al. (2011) Fig. 1BathurstGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008Calving ground D from Nagy et al. (2011) Fig. 1BeverlyGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1995-2008There are 2 polygons, a northern and a southern calving ground. Based on BQCMB compilation of all data from government surveys (1957-2011) and telemetry (1996-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving grounds E-1 and F).AhiakGeneralized annual range polygon for \u2018Queen Maud Gulf\u2019 from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1996-2008. In 2017, the Ahiak annual range was extended by B.Fournier (ENR) to cover the Queen Maud Gulf calving area produced by J.Nagy, when it was discovered that 2 areas in the northwest and northeast of the calving area were not covered by the annual range polygon.Calving ground E from Nagy et al. (2011) Fig. 1QamanirjuaqGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1993-2008Based on BQCMB compilation of all data from government surveys (1963-2008) and telemetry (1993-2012). See Poole (2011) for details.Polygons are as displayed by BQCMB (2014) as well as Nagy et al. (2011, Fig. 1, calving ground G).LorillardGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 1998-2007Calving ground H from Nagy et al. (2011) Fig. 1Wager BayGeneralized annual range polygon from Nagy et al. (2011) Fig. 3, based on mean 90% utilization distribution from accumulated collar data 2000-2006Calving ground I from Nagy et al. (2011) Fig. 1Boothia PeninsulaAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by COSEWIC (J. Ray) in 2015.Polygon not availableSouthampton IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableCoats IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, as instructed by Mitch Campbell (Govt of NU) in 2014, for the COSEWIC report. Used entire island as there were no quantitative seasonal range data available.Polygon not availableBaffin IslandAs shown in COSEWIC (2016) Fig. 2. Digitized by B. Fournier, ENR, from an image provided by Troy Pretzlaw (Govt of NU) in 2014, for the COSEWIC report. Polygon not availableAcronyms:BQCMB = Beverly and Qamanirjuaq Caribou Management BoardCARMA = CircumArctic Rangifer Monitoring and Assessment NetworkCOSEWIC = Committee on the Status of Endangered Wildlife in CanadaReferences cited in table:BQCMB. 2014. Beverly and Qamanirjuaq Caribou Management Plan 2013-2022. Beverly and Qamanirjuaq Caribou Management Board, Stonewall, MB. Available at http://arctic-caribou.com/pdf/bqcmb_managementplan_detailed2014.pdfCARMA. 2012. Caribou herd information. CircumArctic Rangifer Monitoring and Assessment Network. Web site: http://www.caff.is/carmaherds[accessed December 2012]COSEWIC. 2011. Designatable Units for Caribou (Rangifer tarandus) in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa, ON. 88 pp. Available at http://www.cosewic.gc.ca/D37AB818-5F3B-44DC-9D56-EE22C63F4512/COSEWIC_Caribou_DU_Report_23Dec2011.pdfCOSEWIC. 2016. COSEWIC Status Report on Barren-ground caribou Rangifer tarandus in Canada. 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