Monday, December 13, 2010

Time to panic?: Arctic warming will make it easier for polar bears to obtain their favorite food

Fairbanks Daily News-Miner - Warming means Arctic ringed seals face uncertain future
Projections of a warmer Arctic means sea ice will form later in winter and melt sooner in spring, retaining less snow. Less snow means insufficient shelter, making pups vulnerable to polar bears, Arctic fox, ravens and gulls, or to simply freezing to death if a cold snap follows a thaw.
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Climate models indicate that precipitation is expected to increase during future winters, according to NOAA. However, toward the end of the century, a later freeze-up and early snow melts will deprive ringed seals of sufficient snow cover for lairs, especially during spring when the pups are born and nursed.

"Ringed seal pups born on ice will be subject to high rates of mortality through hypothermia and predation," the report concluded.
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A polar bear might eat as many as 43 ringed seals per year
CRESLI ring seal page
Population estimates for ringed seal are between 3 ½ to 6 million, which makes them the most abundant of the Arctic seals.
POLAR BEAR - Arctic Wildlife
Seals are their favorite food, especially the ringed seal.

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