Arctic Fox Habitat: Circumpolar Distribution

The Arctic fox (Vulpes lagopus) has a circumpolar distribution, inhabiting the Arctic and alpine tundra regions of the Northern Hemisphere.

Geographic Range

• North America: Alaska (North Slope, Aleutians), Northern Canada (Yukon, NWT, Nunavut, Arctic Quebec, Labrador), Greenland.
• Eurasia: Iceland, Svalbard, Scandinavia (Norway, Sweden, Finland), Russia (entire Arctic coast, Novaya Zemlya, Franz Josef Land, Wrangel Island).

Habitat Preferences

• Coastal Tundra: Primary habitat; access to seabird colonies, marine carrion, ringed seal pups.
• Inland Tundra: Lemming-dependent populations (cyclic abundance).
• Sea Ice: Winter foraging on pack ice (following polar bears for scraps).
• Alpine Tundra: High elevations in Scandinavia/Ural (southern range limit).

Adaptations

• Coat: White (winter camouflage) → brown/grey (summer); only canid with seasonal color change.
• Morphology: Short ears, muzzle, legs; thick fur on paws — minimizes heat loss.
• Metabolism: Can survive -70°C; reduces BMR in starvation.

Conservation

Global status: Least Concern, but Critically Endangered in EU (Fennoscandia < 200 adults). Threats: climate change (red fox northward expansion), hunting, prey cycles.