NatureServe

indication of the chance of a species' extinction, regardless of authority used

NatureServe, Inc. is a nonprofit organization based in Arlington County, Virginia, US, that provides proprietary wildlife conservation-related data, tools, and services to private and government clients, partner organizations, and the public. NatureServe reports being "headquartered in Arlington, Virginia, with regional offices in four U.S. locations and in Canada." In calendar year 2011 they reported having 86 employees, 6 volunteers, and 15 independent officers.

conservation status assigned by the NatureServe