9 of 25 Pika populations in Nevada/Utah gone as temps rise - 0 views
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As temperatures have risen across the American West, scientists who study the pika have discovered that it is disappearing from lower elevations. In the Sierra Nevada, for instance, biologists at the University of California, Berkeley, found that the pika had moved upslope 500 feet to cooler climes over the past 90 years. Another study determined that nine of 25 pika populations in the Great Basin of Nevada and Utah have vanished over the past century, with surviving pikas migrating up 900 feet.