From Conservation Magazine:
Pronghorn migrate through Montana, Idaho, and Wyoming. The Greater Yellowstone Ecosystem’s “Path of the Pronghorn” is one of the last of America’s terrestrial migrations, but it’s being threatened by natural gas-related development, along with the familiar problems of fencing and roads.
To see how the increasing specter of natural gas development might affect the pronghorns’ 170-mile migration pathway, researcher Renee G. Seidler of the Wildlife Conservation Society, together with colleagues from Princeton University, the University of Montana, and the Idaho Department of Fish and Game, outfitted 250 female pronghorn with GPS collars during the winters of 2005 through 2009.
For five consecutive springtime migrations, the researchers were able to identify the paths and stopping points for the herds of pronghorn antelopes as they moved from the colder north to the more agreeable south. When they combined the GPS data with detailed satellite imagery and two gas fields in development, they were able to see which anthropogenic factors were most important in affecting the pronghorns’ migration. If the ungulates are unable – or unwilling – to migrate, then they might wind up being excluded from their northernmost range entirely, limited to just their southern territory in and around Grand Teton National Park.
See the full article here: http://conservationmagazine.org/2014/10/americas-pronghorn-migration-faces-human-obstacles/
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