The most recognized type is the conical shaped dwelling surrounded by water. It is made from sticks, mud and rocks. One of the primary reasons beavers build dams is to surround their lodge with water for protection from predators. The second type of lodge is the bank lodge.
Beaver Benefits – A Keystone Species. While beavers are considered to be pests by some, scientists actually have proven that beavers are a “Keystone” species in North America. This means that beavers play a crucial role in biodiversity.
The lifespan of a wild beaver is approximately 10 years. Beavers create dams to raise water levels so they can build their homes, or lodges, in the water. By effectively creating an island with an underwater entrance, they are protected from many predators.
Animals get energy by eating plants or other animals. ... Beaver like to eat the bark and twigs of poplar, aspen, birch, willow and maple trees. They also eat water plants such as water lily and cattail. Predators of beaver are coyotes, foxes, bobcats, otters and great-horned owls.
Some animal species strictly consume plant matter, some are big meat eaters and others dine on a healthy mix of both. Beavers are a prime example of those that eat vegetation only, the herbivores. Beavers are large rodents that definitely enjoy vegetation -- including twigs, foliage, bark and aquatic plants.
Some of these rodents' most common predators include fishers, coyotes, hawks, brown and black bears, northern river otters, lynx, eagles, mountain lions, owls, wolverines and wolves. People are also serious threats to North American beavers, as they sometimes hunt them for their skins and fur.
Rodentia - gophers, mice, rats, squirrels, porcupines, beavers, chipmunks. This is the largest order of mammals. There are over 1,500 species of rodents. Rodents are found all over the world, except for in Antarctica, New Zealand and some ocean islands.