Wolverines face severe population fragmentation due to habitat loss and trapping pressure, creating genetic isolation that threatens long-term viability and welfare of remaining populations.
Population fragmentation causes welfare harms beyond reduced genetic diversity. Isolated wolverines must travel further to find mates, increasing exposure to roads, human conflict, and trapping. Genetic bottlenecks increase the prevalence of harmful mutations. Climate change compounds these stresses by shrinking suitable habitat. Connectivity corridors - protected linkages between habitats - are among the most cost-effective interventions to improve wolverine welfare at the population level.