Monday, February 17, 2014

The Reintroduction of Wolves Into Yellowstone

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Nearly 1,650 wolves roam the Northern Rockies, in 250 packs with more than 110 breeding pairs. About 500 call Greater Yellowstone home and an estimated 80 wolves live within Yellowstone National Park.

GYC continues to monitor wolf numbers in Greater Yellowstone. Meanwhile, Yellowstone wolves are still playing their ecological role.

report from Oregon State University plant researchers William J. Ripple and Bob Beschta reinforces the belief that the wolf has been the primary factor in the improved health of aspen, willow, and cottonwood trees in Yellowstone National Park's Northern Range. This in turn has benefitted such Yellowstone wildlife as beaver, bison, pronghorn, songbirds, raptors, and trout.

The return of the wolf has changed elk behavior and reduced some herds, but overall numbers remain strong in Idaho, Montana and Wyoming. According to Yellowstone biologist Doug Smith, the Yellowstone herds remain healthy despite its smaller size. The number is more in line with historic levels since wolves were reintroduced and grizzly bears and mountain lions returned naturally. Overall elk populations in the states of Idaho, Montana, and Wyoming remain healthy. However, elk populations are now more dynamic with the return of large carnivores and elk distribution has shifted to areas of refugia which make them more difficult to hunt.  Elk populations are affected by many variables including weather, disease, predation, and human mortality.

The Greater Yellowstone Coalition has consistently worked to find the middle ground on wolf management, to move beyond the ongoing conflicts. They continue to promote science-based management and increased tolerance for this iconic animal in the Greater Yellowstone Ecosystem.