(via Polar bear hunting and migration ‘hit by warming…

(via Polar bear hunting and migration ‘hit by warming climate’ | Environment | guardian.co.uk)

One of the most southerly populations of polar bears now has only limited time to hunt on sea ice due to a warming climate, research suggests.

The polar bears of Hudson Bay, Canada, migrate onto land in the summer when the sea ice melts, relying on fat reserves to survive until the sea refreezes in late November or early December. During the winter and spring months they take to the sea ice to hunt their prey of seals.

But the bears have been coming to land earlier and leaving later in recent years as a result of climate change reducing the ice, said researchers from the British Ecological Society in the Journal of Animal Ecology.

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