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Filters: partyWithName: U.S. Geological Survey - ScienceBase (X) > Categories: Data (X) > Types: OGC WMS Layer (X)

Folders: ROOT > ScienceBase Catalog > Biogeographic Information System ( Show direct descendants )

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The GAP National Terrestrial Ecosystems - Ver 3.0 is a 2011 update of the National Gap Analysis Project Land Cover Data - Version 2.2 for the conterminous U.S. The GAP National Terrestrial Ecosystems - Version 3.0 represents a highly thematically detailed land cover map of the U.S. The map legend includes types described by NatureServe's Ecological Systems Classification (Comer et al. 2002) as well as land use classes described in the National Land Cover Dataset 2011 (Homer et al. 2015). These data cover the entire continental U.S. and are a continuous data layer. These raster data have a 30 m x 30 m cell resolution. GAP used the best information available to create the land cover data; however GAP seeks to improve...
Categories: Data; Types: Map Service, OGC WMS Layer; Tags: Alabama, Alaska, Appalachian, Arizona, Arkansas, All tags...
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GAP species range data are coarse representations of the total areal extent a species occupies, in other words the geographic limits within which a species can be found (Morrison and Hall 2002). These data provide the geographic extent within which the USGS Gap Analysis Project delineates areas of suitable habitat for terrestrial vertebrate species in their species' habitat maps. The range maps are created by attributing a vector file derived from the 12-digit Hydrologic Unit Dataset (USDA NRCS 2009). Modifications to that dataset are described here. Attribution of the season range for each species was based on the literature and online sources (See Cross Reference section of the metadata). Attribution for each...
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Gap Analysis Project (GAP) habitat maps are predictions of the spatial distribution of suitable environmental and land cover conditions within the United States for individual species. Mapped areas represent places where the environment is suitable for the species to occur (i.e. suitable to support one or more life history requirements for breeding, resting, or foraging), while areas not included in the map are those predicted to be unsuitable for the species. While the actual distributions of many species are likely to be habitat limited, suitable habitat will not always be occupied because of population dynamics and species interactions. Furthermore, these maps correspond to midscale characterizations of landscapes,...
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This dataset represents a species known range extent for Agile Kangaroo Rat (Dipodomys agilis) within the conterminous United States (CONUS) based on 2001 ground conditions. This range map was created by attributing sub-watershed polygons with information of a species' presence, origin, seasonal and reproductive use. See Gap Analysis Project Species Range Maps for more information regarding data creation and user constraints. For species specific range information, see the attached Range data.
Categories: Data; Types: Map Service, OGC WMS Layer


    map background search result map search result map U.S. Geological Survey - Gap Analysis Project Species Habitat Maps CONUS_2001 GAP/LANDFIRE National Terrestrial Ecosystems 2011 U.S. Geological Survey - Gap Analysis Project Species Range Maps CONUS_2001 Agile Kangaroo Rat (Dipodomys agilis) mAKRAx_CONUS_2001v1 Range Map Agile Kangaroo Rat (Dipodomys agilis) mAKRAx_CONUS_2001v1 Range Map U.S. Geological Survey - Gap Analysis Project Species Habitat Maps CONUS_2001 U.S. Geological Survey - Gap Analysis Project Species Range Maps CONUS_2001 GAP/LANDFIRE National Terrestrial Ecosystems 2011