Wolverines depend on deep persistent snowpack for denning and kit survival, making them one of the most climate-vulnerable carnivores and a welfare sentinel for alpine ecosystems.
Wolverine welfare is acutely threatened by the loss of the deep, persistent snowpack their denning ecology absolutely requires. Kits born in inadequate snow dens face hypothermia and starvation from maternal abandonment when dens collapse or become too shallow. As snowpack becomes less reliable, maternal wolverines may invest reproductive effort in dens that ultimately fail, creating welfare harm for both the kits and the mother whose energetic investment produces no surviving offspring. The geographic retreat of suitable wolverine habitat is not gradual: threshold effects where specific mountain ranges lose reliable deep snowpack will eliminate wolverine populations from those areas entirely. Climate mitigation is therefore the primary wolverine welfare intervention.