Arctic foxes are highly adapted to extreme cold but face mounting pressure from climate change. Warming tundra allows red foxes to expand northward, competing with and displacing Arctic foxes from their habitat.
Arctic fox welfare is under increasing pressure from climate change through two primary mechanisms. First, warming tundra enables red fox range expansion northward — red foxes displace Arctic foxes from denning sites through competitive exclusion, reducing breeding success and forcing animals into marginal habitat. Second, declining sea ice reduces the ice habitat coastal Arctic foxes use for winter foraging of marine mammal carcasses and seabird colonies. Lemming population crashes — made more variable by warming-driven vegetation changes — cause multi-year breeding failures. The Scandinavian Arctic fox, reduced to critically low numbers before recovery programs, demonstrates that targeted intervention including supplemental feeding and predator management can stabilise populations. But long-term welfare requires addressing the climate drivers of habitat change.