4/24/2023 0 Comments Baileys pocket mouse![]() Niche: The desert pocket mouse is a small-bodied granivore, specialized for extreme aridĮnvironments. ![]() Litter size averages 4 young (range 1-7) (Reynolds and Haskell 1949, Wilken and Ostwald 1968). Reproduction: Breeds from February to September, though most activity is in April-May (Whitford 1976). In southern Arizona, home range varied from 0.1 to 0.2 ha (0.25 to 0.5 ac) (Reynolds and Haskell 1949). Home Range: In Arizona, high densities were observed in sandy/gravelly plots with saltbush and mesquite (Arnold 1942). In California, may be active year-round, though inactive in winter in southern Arizona (Hall 1946, Arnold 1942). Pattern: Silty, sandy, or gravelly substrate with sparse to moderate canopy is preferred.Īctivity Patterns: Nocturnal. Water: No direct evidence, but probably obtains water from food. Reproduction: Young are born and raised in nest chambers within the burrow. Generally associated with moderate canopy but experimental removal of canopy did not result in fewer desert pocket mice (Rosensweig 1973). Green vegetation and insects also are eaten (Arnold 1942, Reynolds and Haskell 1949).Ĭover: Burrows are excavated in silty, sandy, or gravelly soil and used for refuges, seed storage, and neonatal care. ![]() Seeds are stored in burrow and in dispersed caches. Forages on sandy or gravelly soils beneath shrub canopy. Elevational range from below sea level (Death Valley) to 820 m (2700 ft).įeeding: Feeds mainly on seeds of forbs, grasses, and shrubs. Locally common resident of desert habitats including desert wash, desert succulent shrub, desert scrub, and alkali desert scrub. east to the Colorado River and south to the border of Mexico. east to central San Bernardino Co., and in the southeast corner of the state from central Riverside Co. In California, occurs in 3 disjunct populations: in Death Valley National Monument, southeastern Kern and northeastern Los Angeles cos. Rodents Desert Pocket Mouse Chaetodipus penicillatusįamily: HETEROMYIDAE Order: RODENTIA Class: MAMMALIA
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