Norman+Lezama+-+Grizzly+Bear

Grizzly Bear ( Ursus Arctos Horribilis)

The Grizzly Bears natural habitat consists of it holing up in a suitable hill side. The dens are for the Bears during hibernation, and esp. for the female bears, because they usually give birth during this time of year. They go into there den between October and December and stays there until early spring.They live along rivers, mountain meadows, and in the tundra. The Grizzly Bears are located in Alaska and in certain parts of Canada. Before the Grizzly Bears lives in Western North America and in the Great Plains. Then European settlers came and made them leave from there range and today about 1,000 remain in the US, where they are protected by law. In Alaska and in Canada they are still being hunted for games.
 * The Natural Habitat and Location**

Since the Grizzly Bear is a omnivore its diet is eating nuts, berries, fruits, leaves, and roots. It also eat rodents to Moose. They nedd to eat great amount of food and convert it to fat and helps to hibernate during the winter season. The Grizzly can run up to 30 miles an hour, which is fast enough to catch its prey.The size of the Grizzly Bear is up to 5 to 8 ft. (1.5 to 2.5m) and can weigh from 350-1500 lbs. Grizzly Bears are mostly brown and the tip of the furis white tipped or grizzled. A Grizzly Bear has a protective layer of fat that allows it to stay in its den while the weather is cold. The Grizzly Bears dig dens on hillsides and they dig dens under rocks or in the hollow of a tree. Also, in a cave or crevice. A Grizzly Bear is a competative animal. It doesn't like to share with wolves. Sometimes when wolves take down the prey the bear comes and drives them away so it could eat it and then the wolves would try to attack it to get their meal again. Or sometimes grizzly Bears will fight each other for territory and fishing spots. Mating starts in May and can go up to arly July, and then it takes 180-266 days for cubs to be born and the cubs are usually born around January and March. They usually give birth to two cubs and stay with the mother for two to three years. When the cubs are born they are born blind and furless and weigh one pound. Grizzzly Bears till the soil with their claws, making new vegetation growth. Grizzly Bears look for food in the early in the morning and evening, then it rests during the day. During the summer the Grizzly Bear spends it searches a home to live in. When Grizzly bears attack humans they don't do it because they want to, its because they feel threaten and surprised. Anyway, they try to avoid us tan come near to us.
 * Niche**



The Grizzly Bear is actuallly threaten because of hunting in Canada. Since the Grizzly Bear and the Gray fox compete for the same food that means they eat many of the same food. For example, they both eat Giseles and many small organisms, even though Grizzly Bears are omnivores they still are as important to the ecosystem as the Gray wolves. Grizzly Bears and Gray wolf roam almost the same area, in Canada and some parts of United States. There are 50,000 Grizzly Bears in North America and estimated amount of 7,000 to 11,200 in Alaska and more than 5,000 in the lower 48 states.
 * Population Expansion**

It wouldn't take long for the Grizzly Bear to conyinue the niche the Gray wolf left behind. Actually, its like the Grizzly Bear is already taking the Graywolf niche. Like I said, the Grizzly Bear is being threatened and they could be endangered after a while. To prevent this from happening, in the Yellow Stone Park, you can not shoot Grizzly Bears and in Canada you can only shoot them when the games start. Other than that the Grizzly Bears will take over the Gray Wolves niche if or when they become extinct
 * Species in Competition**

Grizzly Bear.John Eastcott and Yva Momatiuk. National Geographic Society: [] Defenders of wild life:Grizzly Bear.Matthais Breiter. Defenders of Wildlife: [] Joel Sartore, Face to Face with Grizzlies: National Geographic.32pgs
 * Work Cited**