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The Bush administration has proposed a plan to revoke Endangered Species Act protections from grizzly bears in and around Yellowstone National Park. Protections afforded to Yellowstone grizzly bears and their habitat since the population was listed under the Endangered Species Act in 1975 have enabled the population to rebound from the brink of extinction. Today, more than 500 bears live in Yellowstone National Park and adjacent areas of Montana, Wyoming and Idaho. Their survival and the continued growth of the population depends on two factors -- maintaining essential habitat and minimizing human-caused mortalities. However, delisting Yellowstone's grizzlies will loosen restrictions on hunting and industrial and real estate development in the area, accelerating the loss of bear habitat and increasing the likelihood of conflict between bears and humans.

Yellowstone Grizzly Bears at Risk: An Overview
Issue Paper
This issue paper provides an overview of the recovery effort made possible by the designation of Yellowstone's grizzly bears as endangered species, and outlines the threats that grizzlies in the Greater Yellowstone ecosystem continue to face today.

Threatened Grizzly Bear Habitat in the Greater Yellowstone Ecosystem
Fact Sheet
Mounting pressure for development in the Greater Yellowstone ecosystem threatens to destroy habitat that the grizzly bear population needs to survive and to continue to grow. Without the habitat protections provided by the Endangered Species Act, these threats will intensify. This fact sheet analyzes the threats posed to grizzly bears by energy development, logging and roadbuilding in bear habitat.

Grizzly Bear Mortality in the Greater Yellowstone Ecosystem
Fact Sheet
Given the small size of the remaining grizzly bear population, the death of an individual bear, especially a female, can threaten the recovery of the entire population. In the area around Yellowstone National Park, most bears die as a result of bear-human conflict. This fact sheet examines why grizzly bear mortality is particularly problematic and discusses the most common causes of bear mortality in Yellowstone.

last revised 2/14/2006

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