phenacomys การใช้

• During the Ice Ages of the Pleistocene, " Phenacomys " voles lived as far south as Arkansas.
• Until recently, the Eastern Heather Vole, " Phenacomys ungava ", was considered to be a subspecies.
• Until recently, this species was considered to belong to the same species as the western heather vole, " Phenacomys intermedius ".
• The Phenacomys intermedius, known as the western heather vole is a small rodent with a short tail that very closely resembles the montane vole and was even called the " deceiver mouse " for this reason.
• Unusual features in the teeth of " Phenacomys " voles suggest that the genus may have arisen relatively early within the evolutionary history of voles, probably in early Pliocene Beringia, from an Asian ancestor.
• Though some studies have indicated that " Phenacomys ungava " is " rare " or " uncommon, " other researchers have found that the animal can be common locally, and others have suggested that the population may undergo cyclic abundance.
• Mammals sharing the Transition Zone with the gray-tailed vole include : Roosevelt elk, Columbian black-tailed deer, Columbian white-tailed deer, Washington rabbit, brush rabbit, silver gray squirrel, Douglas's squirrel, Townsend's chipmunk, Douglas's ground squirrel, Oregon flying squirrel, dusky wood rat, ruddy deer mouse, California red-backed mouse, red tree vole, white-footed phenacomys, Townsend's vole, Oregon creeping mouse, mountain beaver ( " Aplodontia rufa " ), jumping mice including " Zapus princeps " and " Zapus trinotatus ", Camas pocket gopher, Mazama pocket gopher, and northwest coast bobcat ( Lynx rufus fasciatus ).