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Merriam's kangaroo rat (Dipodomys merriami) is a species of rodent in the family Heteromyidae. [2] The species name commemorates Clinton Hart Merriam . It is found in the Upper and Lower Sonoran life zones of the southwestern United States , Baja California , and northern Mexico .
Different species of kangaroo rat may have different seed caching strategies to coexist with each other, as is the case for the banner-tailed kangaroo rat and Merriam's kangaroo rat which have overlapping ranges. [3] Merriam's kangaroo rats scatterhoard small caches of seeds in numerous small, shallow holes they dig. [15]
Heteromyidae is a family of rodents consisting of kangaroo rats, kangaroo mice, pocket mice and spiny pocket mice.Most heteromyids live in complex burrows within the deserts and grasslands of western North America, though species within the genus Heteromys are also found in forests and their range extends as far south as northern South America.
The San Bernardino kangaroo rat follows the same body plan as Dipodomys merriami and other kangaroo rat species: large hind feet for jumping, long tail for balance while jumping, cheek pouches for foraging, and so on. Its body is about 95 millimeters (3.7 inches) long, with a total length of 230–235 mm (9.1–9.3 in).
Dipodomyinae is the sister group of a Perognathinae-Heteromyinae clade; the two are estimated to have split about 22-24 million years ago.The most recent common ancestor of extant dipodomyines is thought to have lived 15-16 Ma ago, when the two genera split.
Merriam's kangaroo rat (Dipodomys merriami) Chisel-toothed kangaroo rat (Dipodomys microps) Ord's kangaroo rat (Dipodomys ordii) Panamint kangaroo rat (Dipodomys panamintinus) Dark kangaroo mouse (Microdipodops megacephalus) Pale kangaroo mouse (Microdipodops pallidus) Little pocket mouse (Perognathus longimembris) Great Basin pocket mouse ...
Merriam's kangaroo rat, Dipodomys merriamii; Ord's kangaroo rat, Dipodomys ordii; Banner-tailed kangaroo rat, Dipodomys spectabilis; Plains pocket mouse, Perognathus flavescens; Silky pocket mouse, Perognathus flavus; Merriam's pocket mouse, Perognathus merriami; Family: Cricetidae. Northern pygmy mouse, Baiomys taylori; Long-tailed vole ...
The desert kangaroo rat (Dipodomys deserti) is a rodent species in the family Heteromyidae that is found in desert areas of southwestern North America. [2] It is one of the large kangaroo rats , with a total length greater than 12 inches (300 mm) and a mass greater than 3.2 ounces (91 g).