Penguin declines may come down to krill | Science News

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Penguin declines may come down to krill

Lack of food appears to be hurting birds on the Antarctic Peninsula

By
4:51pm, April 11, 2011

Mr. Popper may have had too many penguins, but today Antarctica seems to have too few.

Disruptions in the food supply, caused in part by warming climate, are to blame for shrinking populations of Adélie and chinstrap penguins across the West Antarctic Peninsula, a team of U.S. researchers argues. Rising temperatures alone are bad for these cool, tuxedoed birds, but the penguins’ struggles primarily stem from having too few krill to eat, the group reports online April 11 in the Proceedings of the National Academy of Sciences.

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