Wildlife

Snowy Owl Welfare and Climate Change Impacts on Arctic Breeding

The snowy owl is an iconic Arctic raptor whose welfare and breeding success depend on cyclic lemming populations and intact tundra, both threatened by rapid climate change in the Arctic.

Key Facts

Welfare Considerations

Snowy owl welfare fluctuates dramatically between years of lemming abundance and scarcity. In crash years, birds experience food deprivation, and southward-irrupting juveniles arrive in unfamiliar landscapes where road collisions, power line strikes, and starvation cause significant mortality. Climate-driven disruption of the lemming cycle threatens to reduce the frequency of high-productivity breeding years, with cascading welfare impacts. In breeding years, nest disturbance by ecotourists and researchers causes adults to flush, exposing eggs and chicks to temperature extremes.

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