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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 ...
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.
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). [2]
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).
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]
One species of mountain beaver occurs in California. Mountain beaver, Aplodontia rufa. Sierra Nevada mountain beaver, A. r. californica (CDFW special concern; endemic) Point Arena mountain beaver, A. r. nigra (CDFW special concern; endemic) Point Reyes mountain beaver, A. r. phaea (CDFW special concern; endemic)
Hystrichopsylla schefferi, also known as the mountain beaver flea and giant mountain beaver flea, is a parasitic nearctic insect and a flea, belonging to the order Siphonaptera, the fleas. With an adult body length of as much as 0.5 inches (13 mm), it is the largest living flea in the world, and is native to the American Northwest. [ 2 ]
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)