Wednesday, November 2, 2011


Bears in the Great Smoky Mountains National Park

Great Smoky Mountains National Park is one of the few places remaining in the eastern United States where black bears can live in wild, natural surroundings. For many, this famous Smokies' resident is a symbol of wilderness.

Bears inhabit all elevations of the park. Though populations are variable, biologists estimate that roughly 1,500 bears live in the park. This equals a population density of approximately two bears per square mile. At one time, the black bear's range included most of North America except the extreme west coast. Because of the loss of habitat, the black bear is now confined to wooded areas or dense brushland.

All black bears in the park are black in color, but in other parts of the country they may be brown or cinnamon. They may be six feet in length and up to three feet high at the shoulder. During the summer months, a typical male bear weighs approximately 250 pounds while females are generally smaller and weigh less slightly over 100 pounds. However, bears may double their weight by the fall. Bears over 600 pounds have been documented in the park. Wild bears can live 12-15 years or more. "Panhandler" bears, who have had access to human foods and garbage, have a life expectancy of only half that time.

Bears, like humans, are omnivores. Plant materials such as berries and nuts make up approximately 85% of their diet. Insects and animal carrion provide valuable sources of protein for bears.

Bears have color vision and a keen sense of smell. In addition, they are good tree climbers, can swim very well, and can run 30 miles per hour.

Bear BehaviorBears are most active during early morning and late evening hours in spring and summer. Mating usually takes place in July. Both female and male bears may have more than one mate during the summer.

Bears choose a denning site with the coming of cold weather. Dens are usually hollow stumps, tree cavities, or wherever there is shelter. Bears in the Smokies are unusual in that they often den high above the ground in standing hollow trees. Bears do not truly hibernate, but enter long periods of sleep. They may leave the den for short periods if disturbed or during brief warming trends.

One to four cubs are born during the mother's winter sleep, usually in January. Bears weigh eight ounces at birth. Females with newly born cubs usually emerge from their winter dens in late March or early April. Commonly born in pairs, the cubs will remain with the mother for about eighteen months or until she mates again.

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