![]() 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 prickle poppy. It prefers soft alluvian, 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. WHO I AM The Arizona Pocket Mouse is one of many rodents found in the Sonoran Desert but this little mouse is known for its extremely soft fur. The tufted tail is long, and has a crest of fur forming a ridge along its. penicillatus proceeds southeast into Arizona, through southern New Mexico and southwestern Texas, and into northeastern Mexico. The desert pocket mouse has buff to brownish, coarse fur, and a white underside. From southern Nevada and southwestern Colorado the range of C. The rock pocket mouse, Chaetodipus intermedius, is a small, nocturnal animal found in the deserts of the southwestern United States. Eastward it stretches into the southwesternmost parts of Colorado. Competitors include other heteromyids, especially. It extends southwest into California and the northern Baha Peninsula and northwestern Mexico. Niche: The desert pocket mouse is a small-bodied granivore, specialized for extreme arid environments. ![]() The northern limit of its range is southern Nevada. Using the MARC mark-recapture program we calculated density and distribution across our study area.Chaetodipus penicillatus occurs in the southwestern United States and northern Mexico. By analyzing 1,570 plasma samples with >60 individuals that were trapped and processed 4 or more times over the 8 month period, we were able to adequately quantify foraging strategies. There are actually four subspecies that range in differing. δ 15N values indicate the trophic breadth of the community while δ 13C values represent foraging preferences. The Arizona Pocket Mouse is one of many rodents found in the Sonoran Desert but this little mouse is known for its extremely soft fur. Variation in isotopic space can be linked to individual variation in diet (specialist versus generalist). We used Bayesian spatial metrics to quantify isotope variation temporally across the species as measured by standard ellipse areas in δ 13C versus δ 15N bivariate space. Common in sagebrush, desert scrub, and desert succulent shrub habitats with rocky or stony groundcover (Hall 1946, French et al. It is also found in southeastern Lassen Co. south through the Owens Valley and throughout the Mojave Desert. Differences in δ 13C and δ 15N values among rodents and plant functional groups (C 3 versus C 4) were assessed using Tukey post hoc tests to adjust for multiple comparisons. In California, the long-tailed pocket mouse occurs in arid habitats from eastern Mono Co. ![]() We used a Bayesian mixing model to estimate the proportion of assimilated carbon that was derived from C 3 versus C 4 primary production in plasma, offset by a trophic discrimination factor. ![]() Coloration is grayish brown to yellowish gray and may be sprinkled with black. The total length of adults usually does not exceed 180 mm. Mice were trapped monthly from March to October, 2014, pit-tagged, sexed, aged, bled, and reproductive status determined. desert or dune chaparral Range elevation 0 to 820 m 0.00 to 2690.29 ft Physical Description Chaetodipus penicillatus is a medium-sized pocket mouse. This research (1) quantified resource use within individual PGFV as either generalists or specialists and (2) calculated the density and distribution of these mice across our study area. In a nutrient limited desert ecosystem, Perognathus flavus (PGFV) utilize a variety of foraging strategies to partition these limited resources and maximize fitness.
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