"Migrating Elk Dwindling Because of Climate Change, Predators"
"Migration used to be a good strategy for animals to find the best food, but a recent study appears to show that climate change and human interference favor animals that stay put."
"A scientific study, published today in the journal Ecology, tracked the Clarks Fork elk herd for more than two decades as it migrated between central Wyoming and Yellowstone National Park, finding that the herd’s numbers have dwindled since 1989.
The cause appears to be lowered reproduction caused by climate change and human and predator pressures."Source: Bozeman Daily Chronicle, 06/06/2013