New study shows how much food is needed by seabirds

(PhysOrg.com) -- An international group of scientists, including one from the U.S. Geological Survey, has shown that many seabirds begin to suffer when the food available for them in the ocean declines below a critical level. This level is about one-third of the maximum amount of food available historically. They have shown that this critical level is about the same for seabirds wherever they happen to be in the world. Their study – the most comprehensive ever undertaken – covers birds from the Arctic to the Antarctic and from the Pacific to the Atlantic.

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