Climate-driven loss of persistent snowpack is threatening wolverine populations through habitat loss and reproductive failure, making wolverine welfare a direct climate change welfare concern.
Wolverine climate welfare represents the intersection of two important welfare dimensions — the acute welfare of individual animals experiencing reproductive failure and habitat loss, and the long-term population welfare of a species facing range contraction. Females that select den sites in insufficient snowpack experience den failure and kit mortality, causing both direct welfare harm to kits and the physiological and behavioral consequences of reproductive loss for mothers. As suitable habitat contracts toward higher elevations and northern latitudes, populations become smaller and more isolated, facing reduced genetic diversity and higher vulnerability to catastrophic events. The welfare implications of climate change for wolverines are concrete, measurable, and urgent.