Bailey's pocket mouse | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Heteromyidae |
Genus: | Chaetodipus |
Species: | C. baileyi |
Binomial name | |
Chaetodipus baileyi (Merriam, 1894) | |
Bailey's pocket mouse (Chaetodipus baileyi) is a species of rodent of the subfamily Perognathinae, family Heteromyidae. [3] It is found in Baja California, Sinaloa and Sonora in Mexico and in California, Arizona and New Mexico in the United States. [1]
Bailey's pocket mouse has an adult length of between 176 and 240 mm (6.9 and 9.4 in), males being larger than females. Males average 28.2 g (1.0 oz) while females average 24.5 g (0.86 oz). [4]
Bailey's pocket mouse was first described by Clinton Hart Merriam in 1894 using a specimen collected by Vernon Bailey in Magdalena, Mexico on 3 November 1889. [5]
This pocket mouse lives in a burrow and is nocturnal. When it ventures into the open to search for food it is cautious, remaining as far as possible under cover or in the shadow of plants. When the risk of predation by owls is high it tries to avoid crossing open ground between shrubs, especially on moonlit nights. [1] Pocket mice feed on seeds which they carry in fur lined pouches on the outside of their cheeks, taking them back to their burrow for storage; this arrangement is advantageous to the mouse as it prevents the seeds from getting wet as would happen if they were carried in the mouth. Bailey's pocket mouse is the only known animal to be able to digest the wax found inside the jojoba nut and is the only rodent from the Sonoran Desert that is able to eat the seeds, because they are poisonous to most other mammals. [4]
In the 1970s, researchers removed kangaroo rats from an ecosystem in the Chihuahuan Desert, and for many years, no other small rodents moved in to fill the niche they left. In 1995, twenty years after the experimental removal, Bailey's pocket mouse moved into the area and filled the gap, almost completely replacing the missing kangaroo rats. [6]
Bailey's pocket mouse varies in abundance between about two and eighty animals per hectare, depending on the amount of rainfall and hence on its food supply. No particular threats to this species have been identified, and the International Union for Conservation of Nature has listed its conservation status as being of "least concern". [1]
Kangaroo rats, small mostly nocturnal rodents of genus Dipodomys, are native to arid areas of western North America. The common name derives from their bipedal form. They hop in a manner similar to the much larger kangaroo, but developed this mode of locomotion independently, like several other clades of rodents.
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. They feed mostly on seeds and other plant parts, which they carry in their fur-lined cheek pouches to their burrows.
Perognathus is a genus of pocket mouse. Like other members of their family they are more closely related to pocket gophers than to true mice.
Perognathinae is a subfamily of rodents consisting of two genera of pocket mice. Most species live in complex burrows within the deserts and grasslands of western North America, They feed mostly on seeds and other plant parts, which they carry in their fur-lined cheek pouches to their burrows.
Chaetodipus is a genus of pocket mouse containing 17 species endemic to the United States and Mexico. Like other members of their family such as pocket mice in the genus Perognathus, they are more closely related to pocket gophers than to true mice.
The desert pocket mouse is a North American species of heteromyid rodent found in the southwestern United States and Mexico. True to its common name, the medium-sized desert pocket mouse prefers sandy, sparsely vegetated desert environments.
The hispid pocket mouse is a large pocket mouse native to the Great Plains region of North America. It is a member of the genus Chaetodipus.
The little desert pocket mouse is a species of small rodent in the family Heteromyidae. It is endemic to Baja California in Mexico.
The California pocket mouse is a species of nocturnal and primarily solitary rodent in the family Heteromyidae.
The San Diego pocket mouse is a rodent species in the family Heteromyidae. It occupies the northern region of Baja California near San Diego extending into Mexico.
Goldman's pocket mouse is a species of rodent in the family Heteromyidae. It is endemic to Mexico, where it is threatened by the increasing conversion of its dry, scrubby habitat into agricultural land. As a result, the International Union for Conservation of Nature has assessed its conservation status as being "near threatened".
The spiny pocket mouse is a species of rodent in the family Heteromyidae and order Rodentia. It is found in Baja California in Mexico and in Arizona, California and Nevada.
Merriam's kangaroo rat is a species of rodent in the family Heteromyidae. 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.
The banner-tailed kangaroo rat is a species of rodent in the family Heteromyidae. It is found in arid environments in the southwestern United States and Mexico where it lives in a burrow by day and forages for seeds and plant matter by night.
The silky pocket mouse is a species of rodent in the family Heteromyidae. It is found in northern and central Mexico and the southwest region of the United States. It is a species of least concern, according to the IUCN, with no known major threats. The silky pocket mouse eats seeds, succulent parts of plants and nuts, and carries food in its cheek pouches. It lives in low valley bottoms with soft soils, among weeds and shrubs, where it burrows in the sand to bury seed caches. The species is more tolerant of harsh habitat conditions than other pocket mice.
The San Joaquin pocket mouse or Salinas pocket mouse is a species of rodent in the family Heteromyidae. It is endemic to California in the United States where it lives in desert and semi-desert habitats.
The Chihuahuan pocket mouse is a species of heteromyid rodent found in the southwestern United States and Mexico. It was formerly considered a subspecies of the desert pocket mouse, but was determined to be a distinct species in 1996, following analysis of its mitochondrial DNA.
The Baja pocket mouse is a species of rodent in the family Heteromyidae. The species occurs in southern California, Baja California and on islands in the Gulf of California.
The lined pocket mouse is a species of rodent in the family Heteromyidae. This pocket mouse is endemic to a small area of central Mexico.