Wild Wolverine Recovery Programs: Conservation at the Edge

Wolverines are wide-ranging mustelids that require vast intact wilderness. Climate change and historical persecution have made recovery programs increasingly urgent.

Key Facts

North American wolverines need snow cover persisting into May for denning and kit survival
Wolverine home ranges span 500-1500 square kilometers, making habitat fragmentation devastating
US wolverines were listed as Threatened under the Endangered Species Act in 2023
Global wolverine population is estimated at 30,000-40,000, mainly in Russia and Canada
Wolverines have been extirpated from much of their historical range in the contiguous US

Welfare Considerations

Wolverines caught in traps set for other species suffer acute injury and often die slowly, representing a significant unintended welfare harm. Climate change is reducing snowpack required for successful denning, threatening kit survival and causing reproductive failure that constitutes a population-level welfare crisis. Reintroduction programs must address the stress of translocation and ensure adequate prey availability. Road mortality in fragmented landscapes kills individuals whose large range requirements bring them into frequent road crossings.

What You Can Do

Support wolverine monitoring programs in the Rocky Mountains and Sierra Nevada
Back climate policy that limits warming to protect alpine snowpack ecosystems
Advocate for improved trap regulations that reduce wolverine bycatch
Support wildlife crossing infrastructure on key roads in wolverine habitat