Wolverines are legally trapped for fur in Canada and some US states. Given their low population density, rarity, and the severity of trapping injuries, each trapped individual represents a significant welfare and conservation cost.
Wolverine trapping welfare is doubly concerning: individually, the suffering caused by leg-hold trap capture — often extending over days before trap checks — is severe; demographically, wolverine populations are so sparse that legal and incidental trapping removes individuals that cannot easily be replaced. Self-mutilation (limb gnawing) is documented in trapped wolverines — a behaviour indicating extreme pain and panic. Even when traps are checked on schedule, the interval between capture and discovery involves prolonged suffering with no food, water, or shelter. Body-gripping traps that kill rapidly are less welfare-concerning if correctly positioned, but incorrect placement extends dying. The overlap between wolverine range and traplines targeting other species (lynx, marten) creates significant incidental capture. Welfare improvement requires shorter mandatory trap-check intervals, exclusion devices that prevent wolverine capture in non-target traps, and ultimately ESA listing to limit trapping pressure.