Populations of antelope, elk and deer face growing gauntlet of gas fields and highways
Bottlenecks from increased development are choking off ancient migration routes for wildlife in the Greater Yellowstone Ecosystem (GYE) and other regions, according to a study by the New York-based Wildlife Conservation Society (WCS) that appears in the current issue of the journal Conservation Biology.
Increased gas development in particular is making it more and more difficult for species like pronghorn antelope to migrate in and out of Yellowstone National Park, a round-trip of 340-miles – the longest of any land-based mammal from Argentina to Toronto. Its current winter migration route consist is a perilous network of narrow mountain passes to 100-yard-wide strips along highways. Carbon dating by archeologists shows that some of these routes have been used for 5,800-7,800 years, according the authors.
Stephen Sautner | EurekAlert!
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