Arctic foxes face increasing competition from expanding red foxes as climate warming opens previously unsuitable habitat, compressing their range and creating welfare consequences from food insecurity and displacement.
Arctic foxes displaced from traditional range by expanding red fox competitors face food insecurity, territorial stress, and reduced reproductive success. Individuals surviving in degraded habitat with reduced lemming availability experience the chronic physiological stress of nutritional inadequacy. The indirect welfare harm of climate change on Arctic foxes — mediated through competitive displacement and food web disruption — is invisible compared to acute harms but cumulative over the lifespan of affected individuals.