Greater Yellowstone Coalition – Wolves: Wolf Stamp delays and Wyoming relisted.
A 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. Â Elk populations are affected by many variables including weather, disease, predation, and human mortality.