Wild Moose Habitat Welfare and Climate Threats

Moose across North America and Eurasia face growing welfare challenges from climate change, parasites, habitat loss, and human-wildlife conflict.

Key Facts

Moose are the largest members of the deer family, with bulls weighing up to 700 kg
Winter tick infestations kill thousands of moose annually, with individual animals carrying over 100,000 ticks
Warmer winters allow tick populations to explode as cold snaps no longer kill larvae
Brain worm, transmitted by white-tailed deer moving northward, causes neurological disease in moose
Moose are highly sensitive to heat stress above 14 degrees Celsius, limiting summer foraging
Vehicle collisions cause significant moose mortality, with major welfare implications during impact

Welfare Considerations

The welfare of wild moose is increasingly compromised by compounding threats. Winter tick infestations cause severe anemia, hair loss, and dramatic weight reduction, and heavily infested moose may spend 20% of their time grooming instead of foraging. Brain worm causes a progressive neurological decline that leaves moose disoriented and unable to flee predators, resulting in prolonged suffering. Climate-driven habitat changes are pushing moose populations toward their thermal tolerance limits, increasing chronic heat stress. Conservation management increasingly considers welfare metrics alongside population dynamics.

What You Can Do

Support wildlife corridor initiatives that allow moose to access thermal refugia in summer
Report moose that appear disoriented or sick to wildlife authorities promptly
Drive carefully in moose habitats, especially at dawn and dusk
Advocate for climate policies that protect boreal forest ecosystems