Great basin pocket mouse states3/23/2023 Owls are major predators, and owl pellets are a major source of information on the distribution of these secretive animals. When grain is taken, it mostly is gleaned from the ground the mice are too small to harvest wheat themselves.Īctive year-round, pocket mice seem to breed throughout the warmer months, producing litters of two to nine young after gestation periods of around four weeks. Seeds stored for winter but unused for food may germinate and help reestablish grassy prairies. Pocket mice eat mostly seeds of grasses and forbs. The nocturnal animals make extensive burrows that are plugged during the day. The olive-backed pocket mouse lives in the northwest and also at the foot of the Front Range. In productive years, cheatgrass seeds formed a major portion of the diet of Great Basin pocket mice in southeastern Washington. Indian ricegrass (Oryzopsis hymenoides), cheatgrass (Bromus tectorum), Russian-thistle (Salsola kali), antelope bitterbrush (Purshia tridentata), pigweed (Amaranthus spp.), and mustard (Brassica spp.) seeds are important Great Basin pocket mouse food items. Water Shrew Sorex palustris navigator Mainly restricted to montane riparian habitats. amoenus) Typically occurs in mountain and foothill habitats with dense ground cover. Tail length is 110 to 120 of head and body length, and distinctly. The seeds are primarily those of grass species, and some preferred forb species. Mammalian species that occur in or near Great Basin National Park in the South Snake Range: Class Insectivora, Family Soricidae Agrant Shrew Sorex vagrans vagrans ( S. The plains and silky pocket mice live on the plains as well, but also in the San Luis Valley and on the Colorado Plateau. The Columbia Plateau Pocket Mouse is the largest member of the genus Perognathus. The Great Basin pocket mouse occurs only in the northwest, and the hispid pocket mouse lives on the eastern plains. All but the hispid pocket mouse (which is large and has distinctly harsh, bristly fur) are difficult to distinguish from each other. The smallest species is the silky pocket mouse, about four inches long and weighing just one-fifth of an ounce the largest is the hispid pocket mouse, twice that long and ten times as heavy. Most movement is quadrupedal (using four legs), and they hunker down on their hind legs while feeding, packing their cheek-pouches with their dainty forepaws. The hantavirus strain present in deer mice is Sin Nombre(SNV). clarus (Goldman) extreme southwestern Montana southeastern Idaho. Pocket mice are smaller cousins of kangaroo rats. The underbelly is always white and the tail has clearly defined white sides. Perognathus parvus bullatus : (Durrant and Lee) central and east-central Utah P. Colorado is home to five species of pocket mice the Great Basin pocket mouse, the hispid pocket mouse, the plains pocket mouse, the silky pocket mouse, and the olive-backed pocket mouse.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |