GAP Species Mapping http://gapanalysis.usgs.gov/species USGS GAP Species maps and data Wed, 22 May 2013 20:43:29 +0000 en-US hourly 1 Reptile Species Richness http://gapanalysis.usgs.gov/species/reptile-species-richness/ http://gapanalysis.usgs.gov/species/reptile-species-richness/#comments Thu, 31 May 2012 21:53:58 +0000 gapadmin http://gapanalysis.usgs.gov/species/?p=1031 Total_Reptile_Richness

Total reptile species richness for the United States

This map of reptile species richness in the U.S. is derived from the USGS Gap Analysis Program’s (GAP) national reptile ranges dataset. The map represents the total number of reptile species summarized by 12-digit hydrological units (HUCs). Light blue HUCs have the lowest number of species while red HUCs have the highest.

]]> http://gapanalysis.usgs.gov/species/reptile-species-richness/feed/ 0 Bird Species Richness http://gapanalysis.usgs.gov/species/map-of-bird-species-richness/ http://gapanalysis.usgs.gov/species/map-of-bird-species-richness/#comments Thu, 22 Mar 2012 22:06:43 +0000 gapadmin http://gapanalysis.usgs.gov/species/?p=928 Bird Richness in the United States

Bird Richness in the United States

This map of bird species richness in the U.S. is derived from the USGS Gap Analysis Program’s (GAP) national bird ranges dataset. The map represents the total number of bird species summarized by 12-digit hydrological units (HUCs). Dark blue HUCs have the highest number of species while yellow HUCs have the lowest.

]]> http://gapanalysis.usgs.gov/species/map-of-bird-species-richness/feed/ 0 2011 State of the Birds http://gapanalysis.usgs.gov/species/sotb/ http://gapanalysis.usgs.gov/species/sotb/#comments Tue, 19 Apr 2011 12:38:59 +0000 jmaxwell http://species.greeninfo.org/?p=608 Image of State of the Birds Report Cover

GAP Data were used in the 2010 State of the Birds report

Each year the State of the Birds report focuses attention on conservation issues that impact bird populations in the United States. In the 2011 report, bird distribution and land-ownership data provided the nation with an assessment of the status of birds on public lands and waters. These types of assessments are important not only because they demonstrate the importance public lands have  in conserving  birds; but also because they show stewardship opportunities available for the public land agencies managing these lands.

 

State of the Birds partnership
This year’s report was developed by the North American Bird Conservation Initiative in partnership with The National Gap Analysis Program at the University of Idaho, the Cornell Lab of Ornithology, The Nature Conservancy, American Bird Conservancy, Association of Fish and Wildlife Agencies, Bureau of Land Management, the U.S. Geological Survey, Department of Defense/DoD Partners in Flight, Klamath Bird Observatory, National Audubon Society, National Oceanic and Atmospheric Administration, National Park Service, U.S. Fish and Wildlife Service, and USDA Forest Service.


Contributions by GAP
To determine the stewardship responsibilities and conservation opportunities for birds on public lands and waters, U.S. bird distribution information was overlaid onto a map of public land ownership (PAD-US) to determine the percentage of each species’ distribution on public land.  To represent the most accurate breeding and wintering distributions of birds in the contiguous 48 states, bird observation data from eBird (www.ebird.org) were analyzed.  For Alaska bird distributions, vegetation layers were used to modify bird range data from the Alaska Gap Analysis Project and NatureServe. State of Hawaii biologists compiled and analyzed distributions for Hawaiian bird species. Bird distributions for Puerto Rico, U.S. Virgin Islands, Guam, Commonwealth of the Northern Mariana Islands, and American Samoa were based on distribution of suitable habitat identified by local experts. For most ocean species, the best available colony-nesting data were used to evaluate the breeding distribution. 

GAP’s Protected Areas Database of the United States (PAD-US version 1.1) was used to determine land ownership and biodiversity protection status of all public lands for the continental U.S., Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands.

GAP’s National Land Cover data were used to estimate the extent of each primary habitat within public lands.   The 590 ecological systems and land-use classes were categorized into primary habitat designations for the analysis. These data were then overlaid with PAD-US to calculate the area of each primary habitat on public lands (not including coasts, islands, and oceans).

To calculate the percentage of each species’ distribution within public land ownership and biodiversity protection categories for the continental U.S., the bird distribution model or frequency map for each bird species was projected onto PAD-US. By combining these datasets, analysts calculated the percentages of species distributions on public lands and identified public agencies responsible for managing lands where each species occurred.

PAD-US version 1.1 included significant contributions and large aggregated data sets from BLM, USFS, GreenInfo Network, and The Nature Conservancy. USGS-GAP relies on authoritative sources, such as federal, state, local, nongovernmental organizations, and land trusts to provide valuable spatial and attribute data to improve and expand PAD-US. We encourage agencies and organizations with protected areas data to contact USGS-GAP. PAD-U.S. 1.2, the newest update, is now available for download.

More information:
]]> http://gapanalysis.usgs.gov/species/sotb/feed/ 0 USGS Gap Analysis Program (GAP) Receives Award at ESRI International User Conference http://gapanalysis.usgs.gov/species/award/ http://gapanalysis.usgs.gov/species/award/#comments Mon, 18 Apr 2011 03:19:56 +0000 jmaxwell http://species.greeninfo.org/?p=594 Gap species viewer

The USGS GAP Species Viewer allows users to explore range and distribution maps for their species of interest.

GAP’s  recently launched Species Viewer placed third in the category of Web-based GIS Applications at ESRI’s User Software Applications Fair in July, 2011.

The viewer currently has more than 800 vertebrate species ranges and 260 distribution models. With more than 2000 species being modeled, new ranges and distribution models are being added daily.

The web viewer was  presented in conjunction with a talk given by Adam Radel and Jeff Lonneker titled “Access to National Conservation Databases via the Web.”

Atlantic Coast Slimy Salamander (Plethodon chlorobryonis)

Learn More

]]> http://gapanalysis.usgs.gov/species/award/feed/ 0 Whip-poor-will Gap Analysis http://gapanalysis.usgs.gov/species/whip-poor-will/ http://gapanalysis.usgs.gov/species/whip-poor-will/#comments Sun, 17 Apr 2011 02:23:24 +0000 jmaxwell http://species.greeninfo.org/?p=596 thumnail

Gap Analysis results for Whip-poor-will in Oklahoma

GAP scientists conducted a gap analysis of habitat for the Whip-poor-will (Caprimulgus vociferus) in Oklahoma.

The results concluded that 1.2 percent of the species” distribution occurred on GAP status 1 and 2 lands.

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