USGS Biodiversity Information Serving Our Nation (BISON) is a unique, web-based Federal mapping resource for species occurrence data in the United States and its Territories. BISON’s size is unprecedented, including records for most living species found in the United States and encompassing the efforts of more than a million professional and citizen scientists. Most of BISON’s species occurrence records are specific locations, not just county or State records.
As of August 2019, BISON added a new nonnative species data filter to our web user interface. This new data filter is based on the "First Comprehensive List of Non-Native Species Established in Three Major Regions of the United States" U.S. Geological Survey Open-File Report 2018-1156. "Listing what species are non-native in an area helps measure Essential Biodiversity Variables for invasive species monitoring and mount an effective response to established non-native species" (Simpson and Eyler, 2018).