---
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aliases:
  - context: identifier
    lexicon: datagov
    term: ad3ad373-1a0c-4515-82e7-d10e2b05d326
    url: ~
  - context: dataset
    lexicon: datagov
    term: u-s-geological-survey-gap-analysis-program-species-distribution-modelsaea06
    url: ~
attributes: ~
cite_metadata: ~
cited_by: []
contributors:
  - display_name: 'Data Archive : USGS National Gap Analysis Program '
    href: http://52.38.26.42:8080/contributor/23010.yaml
    id: 23010
    organization:
      country_code: US
      display_name: USGS National Gap Analysis Program
      identifier: usgs-national-gap-analysis-program
      name: USGS National Gap Analysis Program
      organization_type_identifier: academic/operated by fed. government
      type: organization
      url: http://gapanalysis.usgs.gov/
    organization_uri: /organization/usgs-national-gap-analysis-program
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    role_type_identifier: data_archive
    uri: /contributor/23010
data_qualifier: ~
description: "GAP distribution models represent the areas where species are predicted to occur based on habitat associations. GAP distribution models are the spatial arrangement of environments suitable for occupation by a species. In other words, a species distribution is created using a deductive model to predict areas suitable for occupation within a species range. To represent these suitable environments, GAP compiled existing GAP data, where available, and compiled additional data where needed. Existing data sources were the Southwest Regional Gap Analysis Project (SWReGAP) and the Southeast Gap Analysis Project (SEGAP) as well as a data compiled by Sanborn Solutions and Mason, Bruce and Girard. Habitat associations were based on land cover data of ecological systems and--when applicable for the given taxon--on ancillary variables such as elevation, hydrologic characteristics, human avoidance characteristics, forest edge, ecotone widths, etc. Distribution models were generated using a python script that selects model variables based on literature cited information stored in a wildlife habitat relationship database (WHRdb); literature used includes primary and gray publications. Distribution models are 30 meter raster data and delimited by GAP species ranges. Distribution model data were attributed with information regarding seasonal use based on GAP regional projects (NWGAP, SWReGAP, SEGAP, AKGAP, HIGAP, PRGAP, and USVIGAP), NatureServe data, and IUCN data. A full report documenting the parameters used in each species model can be found via: http://gis1.usgs.gov/csas/gap/viewer/species/Map.aspx Web map services for species distribution models can be accessed from: http://gis1.usgs.gov/arcgis/rest/services/NAT_Species_Birds http://gis1.usgs.gov/arcgis/rest/services/NAT_Species_Mammals http://gis1.usgs.gov/arcgis/rest/services/NAT_Species_Amphibians http://gis1.usgs.gov/arcgis/rest/services/NAT_Species_Reptiles A table listing all of GAP's available web map services can be found here: http://gapanalysis.usgs.gov/species/data/web-map-services/ GAP used the best information available to create these species distribution models; however GAP seeks to improve and update these data as new information becomes available. Recommended citation: U.S. Geological Survey Gap Analysis Program (USGS-GAP). [Year]. National Species Distribution Models. Available: http://gapanalysis.usgs.gov. Accessed [date]. Online references: U.S. Geological Survey Gap Analysis Program: http://gapanalysis.usgs.gov Northwest Gap Analysis Project: http://gap.uidaho.edu Southwest Regional Gap Analysis Project: http://swregap.nmsu.edu/HabitatModels/default.htm Southeast Gap Analysis Project: http://www.basic.ncsu.edu/segap Alaska Gap Analysis Project: http://aknhp.uaa.alaska.edu/zoology/akgap Hawaii Gap Analysis Project: ftp://ftp.gap.uidaho.edu/products/Hawaii.zip Puerto Rico Gap Analysis Project: http://prgap.org U.S. Virgin Islands Gap Analysis Project: http://prgap.org"
description_attribution: ~
display_name: U.S. Geological Survey Gap Analysis Program Species Distribution Models
doi: ~
end_time: ~
files: []
href: http://52.38.26.42:8080/dataset/usgs-gap-analysis-program-species-distribution-modelsaea06.yaml
identifier: usgs-gap-analysis-program-species-distribution-modelsaea06
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name: U.S. Geological Survey Gap Analysis Program Species Distribution Models
native_id: ~
parents: []
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references: []
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type: dataset
uri: /dataset/usgs-gap-analysis-program-species-distribution-modelsaea06
url: http://gis1.usgs.gov/arcgis/rest/services/NAT_Species_Birds
variables: ~
version: ~
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