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


North American Wolverine
(Gulo gulo luscus)

Staus: Proposed

WolverinePhoto Credit: NPS


Wolverine Area Of Influence

Section 7 Range Symbol

Wyoming Area Of Influence
North American Wolverine

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

The North American wolverine (Gulo gulo luscus) in the contiguous United States was determined to be a distinct population segment (DPS).  This DPS is a candidate for listing under the ESA (75 FR 78030; December 14, 2010).  The North American wolverine (Gulo gulo luscus) is a member of the Mustelidae (weasel) family and resembles a small bear with a bushy tail.  It has a broad, rounded head; short, rounded ears; and small eyes.  Each foot has five toes with curved, semi-retractile claws used for digging and climbing.  Female wolverines use birthing dens that are excavated in snow.  Persistent, stable snow greater than 5 feet deep appears to be a requirement for natal denning as it provides security for offspring and buffers cold winter temperatures.  Wolverines occur within a wide variety of alpine, boreal, and arctic habitats, including boreal forests, tundra, and western mountains.  Wolverines are opportunistic feeders and consume a variety of foods depending on availability.  They primarily scavenge carrion, but also consume small animals and birds, fruits, berries, and insects.  Potential threats to the wolverine include climate change, dispersed recreation, transportation corridors, and land management activities.

Last updated: April 10, 2015