Wyoming Ecological Services
Mountain-Prairie Region

Federally Listed, Proposed & Candidate Species | Species of Concern | Migratory Birds | All Species By County



Federally Listed, Proposed and Candidate Species


Grizzly Bear
(Ursus arctos horribilis)

Status: Threatened

Grizzly BearPhoto Credit: FWS


Grizzly Bear Area Of Influence

Section 7 Range Symbol

Wyoming Area Of Influence
Grizzly Bear

Potential Distribution in Wyoming

For Species Lists, please use the IPaC System

Area Of Influence

Areas Of Influence (AOI) identify areas where any project located within should consider potential effects to the Threatened, Endangered, Proposed, and Candidate species and designated and proposed Critical Habitat, in reference to Section 7 of the Endangered Species Act of 1973, as amended.  AOI typically encompass larger areas than simply where the species is known to exist because of direct and indirect effects to the species and their habitat.  It is important to consider potential effects to the species and their habitat within these larger areas.  Action agencies are encouraged to refer to the Service’s Information, Planning, and Conservation System (IPAC) or contact the FWS Wyoming Ecological Services Office for additional information.  (AOI boundaries based on the best available data at time of development.  AOI will be updated as new information becomes available).

Download Area Of Influence GIS Data or Area Of Influence Google Earth layers


Species Information

An order was issued by the Federal District Court in Missoula on September 21, 2009, in Greater Yellowstone Coalition v. Servheen, 07-CV-134-DWM (D. Mt.), which enjoined and vacated the delisting of the Greater Yellowstone Area (GYA) grizzly population.  In compliance with this order, we are again treating the Yellowstone grizzly population as a threatened population under the ESA.  The U.S. Department of Justice is appealing this decision. 

Pending the resolution of the appeal, we urge you to take all necessary steps to comply with requirements for species listed under the ESA, including consultation under section 7 when actions are planned in the habitat of grizzlies in the GYA, if circumstances warrant.  Illegal killing of grizzly bears in the GYA is again a Federal offense as well as a violation of State laws.  Nuisance bear management should proceed according to the Interagency Grizzly Bear Guidelines.
Last updated: April 10, 2015