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The mountain beaver (Aplodontia rufa) [Note 1] is a North American rodent.It is the only living member of its genus, Aplodontia, and family, Aplodontiidae. [2] It should not be confused with true North American and Eurasian beavers, to which it is not closely related; [3] the mountain beaver is instead more closely related to squirrels, although its less-efficient renal system was thought to ...
The North American beaver (Castor canadensis) is one of two extant beaver species, along with the Eurasian beaver (Castor fiber). [23] It is native to North America and has been introduced in South America and Europe (primarily Finland and Karelia).
Mountain lions were significantly reduced by predator control measures during the early 20th century. It is reported that 121 lions were removed from the park between the years 1904 and 1925. At that time, the remaining population was estimated to be 12 individuals. Mountain lions apparently existed at very low numbers between 1925 and 1940.
Beavers can be found in a number of freshwater habitats, such as rivers, streams, lakes and ponds. They are herbivorous, consuming tree bark, aquatic plants, grasses and sedges. Beavers build dams and lodges using tree branches, vegetation, rocks and mud; they chew down trees for building material. Dams restrict water flow, and lodges serve as ...
There are fossils from the Oligocene until Miocene in Asia, from Oligocene in Europe and from the Oligocene until the present in North America, where there is the only living species: the mountain beaver (Aplodontia rufa).
In their natural range in North America, bears and wolves prey on the beavers and keep the population under control. One observer noted that anyone considering importing beavers should also import bears, those being the beavers' natural predators. [4] According to a June 2011 NPR report, 200,000 beavers were living in the area. [6]
Sciuromorpha (/ s ɪ ˈ j uː r ə m ɔː r f ə / 'squirrel-like') is a rodent suborder that includes several rodent families.It includes all members of the Sciuridae (the squirrel family) as well as the mountain beaver species.
Mountain pocket gopher (T. monticola) Nayar pocket gopher (T. nayarensis) Sierra Madre Occidental pocket gopher (T. sheldoni) Northern pocket gopher (T. talpoides) Townsend's pocket gopher (T. townsendii) Southern pocket gopher (T. umbrinus) Genus Zygogeomys. Michoacan pocket gopher (Zygogeomys trichopus)