Despite a rise in the overall population of grizzly bears in the Yellowstone National Park, there is strong fear that the number of female grizzlies is actually dwindling. With rise in the grizzly population, the bears have been removed from the list of endangered animals. Consequently, large number of grizzly bears, especially the female of the species has lost their lives to hunters.
There are an estimated 571 grizzly bears in the Yellowstone area. Of these bears, there are about 250 female bears over 2 years of age, the so-called independent age females.
Researchers estimate that about 18 of these independent aged female bears have dies from hunting accidents, management removals and natural causes.
If the female mortality rises to 9% from the current 7.5%, the bear management officials from Idaho, Wyoming, Montana, Grand Teton National Park, Yellowstone National Park and the US Fish and Wildlife Service might hold a management review that will put the grizzlies back to the endangered species list.