03 Jun '11, 4pm

Green: Pikas Have Moved to Higher Ground

United States Geological Survey The pika has disappeared from some mountain ranges where it had been for over a century. The pika, a small mammal that lives in talus slopes at high elevations in the mountains of the American West, has disappeared in the last decade at a rate five times faster than they disappeared during the 20th century, according to a study out this month. “The data show that climate has become a more important part of extinction,” said Erik Beever, a researcher with the United States Geological Survey in Bozeman, Mont., and the paper’s lead author. “The pika at the edge of their range are being pushed over.” The species is also moving to higher elevations at a faster rate, more than 10 times as fast as previously observed, presumably to stay within its preferred temperature range. In the last 10 years, they have moved up nearly 500 feet in elevation. Ex...

Full article: http://green.blogs.nytimes.com/2011/06/03/pikas-have-move...

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Green: Pikas Have Moved to Higher Ground

green.blogs.nytimes.com 03 Jun '11, 5pm

United States Geological Survey The pika has disappeared from some mountain ranges where it had been for over a century. T...

Pikas Have Moved to Higher Ground

green.blogs.nytimes.com 03 Jun '11, 4pm

United States Geological Survey The pika has disappeared from some mountain ranges where it had been for over a century. T...

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