Data · collection · 2013

U.S. Geological Survey Gap Analysis Program Species Distribution Models

Listed in NASA Earthdata CMR

GAP distribution models represent the areas where species are predicted to occur based on habitat associations.

Description

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.

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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: gis1.usgs.gov/csas/gap/viewer/species/Map.aspx Web map services for species distribution models can be accessed from: gis1.usgs.gov/arcgis/rest/services/NAT_Species_Birds gis1.usgs.gov/arcgis/rest/services/NAT_Species_Mammals gis1.usgs.gov/arcgis/rest/services/NAT_Species_Amphibians gis1.usgs.gov/arcgis/rest/services/NAT_Species_Reptiles A table listing all of GAP's available web map services can be found here: 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: gapanalysis.usgs.gov. Accessed [date]. Online references: U.S. Geological Survey Gap Analysis Program: gapanalysis.usgs.gov Northwest Gap Analysis Project: gap.uidaho.edu Southwest Regional Gap Analysis Project: swregap.nmsu.edu/HabitatModels/default.htm Southeast Gap Analysis Project: basic.ncsu.edu/segap Alaska Gap Analysis Project: aknhp.uaa.alaska.edu/zoology/akgap Hawaii Gap Analysis Project: ftp://ftp.gap.uidaho.edu/products/Hawaii.zip

Topics

Stated by source: Biodiversity Functions · Not provided
Inferred from text: Tabular 65%

Provenance · 1 source records, 11 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C2231552282-CEOS_EXTRA	15 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/community-dynamics/biodiversity-functions	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[modality].local:modality:tabular	enrichment · NASA CMR	keyword-concept-rules@1.0.0	title+description (65%)
concepts[platform].gcmd_platform:not-provided	source · NASA CMR	connector:nasa_cmr@1.0.0
description	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/Abstract
license_text	source · NASA CMR	connector:nasa_cmr@1.0.0
publication_date	source · NASA CMR	connector:nasa_cmr@1.0.0
spatial	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/SpatialExtent
temporal	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/TemporalExtents
title	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/EntryTitle
version_label	source · NASA CMR	connector:nasa_cmr@1.0.0

Open at cmr.earthdata.nasa.gov ↗

Access: open
License: It is strongly recommended that these data are directly acquired from the U.S. Geological Survey Gap Analysis Program server, and not indirectly through other sources, which may have modified the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. All information is created with a specific end use or uses in mind. This is especially true for GIS data, which is expensive to produce and must be directed to meet the immediate program needs. However, these data were created with the expectation that they would be used for other applications; therefore, we list below both appropriate and inappropriate uses. This list is in no way exhaustive but should serve as a guide to assess whether a proposed use can or cannot be supported by these data. For many uses, it is unlikely that GAP's species range data will provide the only data needed, and for uses with a regulatory outcome, field surveys should verify the result. In the end, it will be the responsibility of each data user to determine if these data can answer the question being asked, and if they are the best tool to answer that question. While it is impossible to predict all the uses of these data we have listed several possible appropriate and inappropriate uses from GAP's perspective. All data are provided as is without warranty as to its currency, completeness, or accuracy of any specific data. NatureServe hereby disclaims all warranties and conditions with regard to any documents provided with these data, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, and non-infringement. NatureServe makes no representations about the suitability of this data. In no event shall USGS-GAP or NatureServe be liable for any special, indirect, incidental, consequential damages, or for damages of any kind arising out of or in connection with the use or performance of information contained in these data, under any theory of liability used. The data provided are for planning, assessment, and informational purposes. The information provided is not a survey quality dataset. This disclaimer applies both to individual use of the data and aggregate use with other data. Appropriate uses of the data: primarily as a coarse map for a large area such as a county or to provide context for finer-level maps. A general list of possible applications include: -National, regional or statewide biodiversity planning -National, Regional or state habitat conservation planning -County comprehensive planning -Large-area resource management planning -Coarse-filter evaluation of potential impacts or benefits of major projects or plan initiatives on biodiversity, such as utility or transportation corridors, wilderness proposals, habitat connectivity proposals, climate change adaption proposals, regional open space and recreation proposals, etc. -Determining relative amounts of management responsibility for specific biological resources among land stewards to facilitate cooperative management and planning. -Basic research on regional distributions of plants and animals and to help target both specific species and geographic areas for needed research. -Environmental impact assessment for large projects or military activities. -Estimation of potential economic impacts from loss of biological resource-based activities. -Education at al
Published: 2013-01-01
Version: Not provided
Coverage: 1970-01-01 → ?
Area: 16°–72° lat, -175°–-64° lon
Platforms: Not provided
Processing level: Not provided
Languages: en

CMR concept: C2231552282-CEOS_EXTRA
CMR short name: USGS_GAP_Species_Distribution_Models.vNot provided

U.S. Geological Survey Gap Analysis Program Species Distribution Models

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