ENDANGERED SPECIES ACT PROFILE

PROTECTION STATUS: Not listed

PETITIONED: 1994 (Biodiversity Legal Foundation, Predator Project); 2000 (Biodiversity Legal Foundation and allies)

RANGE: Small, fragmented, and semi-isolated populations in high-elevation habitat in Montana, Idaho and Wyoming; also possibly in Colorado, Minnesota, Washington, Oregon, California, Michigan, Wisconsin, Utah, New Mexico, North Dakota and South Dakota

THREATS: Trapping, habitat loss, global warming, motorized winter recreation

POPULATION TREND: The number of wolverines in the United States has dropped significantly in the past 100 years. Fewer than 500 wolverines left in the lower 48 states represent a distinct population that is only tenuously linked to the Canadian population.

Photo courtesy Wikimedia Commons/William F. Wood