![]() ![]() Demystified Videos In Demystified, Britannica has all the answers to your burning questions.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.Utah Division of Wildlife Resources, 2001."Speciation in the desert pocket mouse ( Chaetodipus penicillatus Woodhouse)". Biota Information System of New Mexico, 2000."Notes on the life history of the sand pocket mouse". ( January 2013) ( Learn how and when to remove this template message) Please help to improve this article by introducing more precise citations. This article includes a list of general references, but it lacks sufficient corresponding inline citations. ![]() Population has a turnover rate as high as 95%. Many young females reach sexual maturity early and became pregnant while still in their juvenile pelage. Incisors appear 9 days after birth, eyes open on day 14, and ears open no sooner than day 14. The mouse's breeding season is in the spring adult females can give birth to one or more litters of two to five young during the spring and summer. Although there is no direct evidence, this species probably acquires all of the water it needs from its food. Seeds are also stored in burrows and in dispersed caches throughout their territories. Seeds of mesquite, creosote bush, and broomweed have been found in the cheek pouches of desert pocket mice. It feeds primarily on seeds of forbs, grasses, and shrubs, although green vegetation and insects may supplement the diet. penicillatus is around one year.Ĭhaetodipus penicillatus forages beneath a canopy of shrubs on sandy or gravely soils. Their burrows, however, are usually excavated in silty, sandy, or gravelly soil and are used for refuges, seed storage, and neonatal care. Pocket mice can burrow into hard-crusted soils by actually physically chewing their way through the hard portions of the soil. It is aggressively solitary, with a home range of less than 1 acre. pencillatus stephensi - eastern CaliforniaĬhaetodipus penicillatus may be active all year round in some areas, though it is inactive in the winter in southern Arizona. pencillatus pricei - southern Arizona, Sonora pencillatus angustirostris - southern California, eastern Baja California pencillatus pencillatus - south-central Arizona Six subspecies are currently recognised: These pocket mice live in soils that may be vegetated with creosote bush, palo verde, burroweed, mesquite, cholla and other cacti, and short, sparse grass, as well as in lower edges of alluvial fan with yucca, mesquite, grama, and prickly poppy. It prefers soft alluvial, sandy, or silty soils along stream bottoms, desert washes, and valleys, rather than rocky terrain. These may include desert wash, desert succulent shrub, desert scrub, and alkali desert scrub. The desert pocket mouse prefers various arid, open desert environments, usually where the vegetation is rather sparse. penicillatus proceeds southeast into Arizona, through southern New Mexico and southwestern Texas, and into northeastern Mexico. From southern Nevada and southwestern Colorado the range of C. Eastward it stretches into the southwesternmost parts of Colorado. It extends southwest into California and the northern Baha Peninsula and northwestern Mexico. The northern limit of its range is southern Nevada. The soles of the hind feet are whitish and average hind foot length is 25 mm.Ĭhaetodipus penicillatus occurs in the southwestern United States and northern Mexico. The tail is heavily crested and is longer than the head and body, with average tail length being 109 mm. The underparts of the body and tail are whitish. This species lacks rump spines but has numerous, elongate rump hairs which are darker dorsally and lighter laterally. Coloration is grayish brown to yellowish gray and may be sprinkled with black. The total length of adults usually does not exceed 180 mm. Chaetodipus penicillatus is a medium-sized pocket mouse. ![]()
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