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Climate Change Affecting Polar Bears, Only Those With The Most Fat Thrive

2013-03-20 21:18:00| Climate Ark Climate Change & Global Warming Newsfeed

RedOrbit: Recent climate induced changes to Arctic polar bears environment is affecting their habits and ability to survive, with the bears having to rely more and more on internal fat reserves, according to a new paper in the Journal of Animal Ecology. The bears are having particular difficulty adjusting to the shifting sea ice dynamics. In the past, sea ice has remained throughout the Arctic summer months, but now it is almost completely melting and refreezing each year. "This poses an interesting...

Tags: change fat affecting climate

Polar bear hunting and migration 'hit by warming climate'

2013-03-20 11:44:00| Climate Ark Climate Change & Global Warming Newsfeed

Press Association: 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...

Tags: hit bear warming climate

'Fattest' polar bears survive climate change

2013-03-20 08:30:00| Climate Ark Climate Change & Global Warming Newsfeed

Telegraph: 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 re-freezes in late November or early December. During the winter and spring months they use the sea ice to hunt their prey of seals. But the bears were coming to land earlier and leaving later in recent years as a result of climate change which was reducing the ice, researchers writing in the Journal of Animal Ecology from the British Ecological Society...

Tags: change climate climate change bears

Melting Sea Ice Keeps Hungry Polar Bears on Land

2013-03-20 01:08:00| Climate Ark Climate Change & Global Warming Newsfeed

LiveScience: Polar bears, the iconic victims of climate change, are shifting their migration patterns because of changes in sea ice. The bears are arriving on land earlier and departing later, a new study found, and it's threatening their access to food. A team of researchers studied the migration patterns of polar bears (Ursus maritimus) in Hudson Bay, Canada, using satellite-tracking data collected between 1991 and1997 and 2004 and 2009. They found that the rate at which sea ice melts and re-freezes, as...

Tags: land sea ice bears