National Gap Analysis Program (GAP) - Species Viewer

The Gap Analysis Program (GAP) Species Viewer displays data on vertebrate species ranges and distribution models for the continental U.S. as well as Alaska, Hawaii, Puerto Rico, and U.S. Virgin Islands. More specifically, species distribution models based on deductive modeling of habitat associations are displayed across entire species ranges for over 2000 species. Our goal is to build species range maps and distribution models with the best available data for assessing conservation status, conservation planning, and research (e.g., climate change impacts). Ranges are represented by 12-digit HUCs with attributes of occurrence/presence, origin, reproductive use, and seasonal use. Distribution models, created at 30 meter resolution, are based on habitat associations from published literature and core data sets, such as elevation and land cover. To date, we have a portion of our total species available through the GAP Species Viewer. As more species ranges and distribution models are completed, we will continually update our data on the GAP Species Viewer. Please check back for updates.