Olive-backed pocket mouse

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Olive-backed pocket mouse
Olive-backed pocket mouse.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Heteromyidae
Genus: Perognathus
Species:
P. fasciatus
Binomial name
Perognathus fasciatus
Perognathus fasciatus map.svg

The olive-backed pocket mouse (Perognathus fasciatus) is a species of rodent in the family Heteromyidae. [2] It is found in the central Great Plains of Canada and the United States where it is widespread and relatively common; the IUCN considers it to be of "least concern".

Description

An adult olive-backed pocket mouse ranges in length from about 125 to 143 mm (4.9 to 5.6 in) including a tail of 56 to 68 mm (2.2 to 2.7 in), with individuals from the northern end of the range being larger than those from the south. It weighs 11 to 14 g (0.4 to 0.5 oz). The fur on the head, back and sides ranges from dark olive-brown in the eastern part of its range to pale buff in the west. The underparts are white, or occasionally buff, with a narrow cream-colored lateral line separating the two colors. There is a buff-colored spot behind the ear. [3]

Distribution and habitat

The olive-backed pocket mouse inhabits the Great Plains of Canada and the United States. Its range extends from Alberta, Saskatchewan and Manitoba southwards through Montana and Wyoming to Utah, Colorado and South Dakota. [1] Its natural habitat is grassland in arid and semi-arid upland areas, usually with sparse vegetation and sometimes with scattered trees such as the aspen or cottonwood (Populus sp.) and plants such as the fringed sagebrush (Artemisia frigida). It has also been observed on a sandy floodplain close to the Little Missouri and among rocky outcrops on grassy hillsides in the same vicinity. On similar hillsides in Nebraska, the vegetation included yucca and ponderosa pine. Its burrows are found in both sandy and clayey soils. [3]

Behavior

The olive-backed pocket mouse is nocturnal and lives underground in an extensive burrow system with tunnels that may reach a depth of 2 m (6 ft 7 in) and spread for 3 m (9.8 ft) on either side of the entrance. The major part of the diet is seeds of weed species which are collected in the cheek pouches, the excess being stored in chambers in the burrow. It also consumes some green parts of plants. Breeding takes place during the summer months and one or more litters of usually four to six young are produced. The gestation period is about thirty days. In some regions it is reported not to hibernate, [3] but in Alberta it may spend up to eight months in hibernation. The extensive caches of seeds in the burrow can help sustain the pocket mouse during the autumn, winter and early spring when it does not emerge above ground. [4] Mice kept in captivity were found to hide seeds below the surface of the soil, appearing to find the caches again at a later date by smell, probing the soil with their snout. They were also seen cleaning their cheek pouches by emptying them of food and rubbing them in the sand. [3]

Status

The olive-backed pocket mouse is widely distributed across the central Great Plains region of Canada and the United States. It is present in many protected areas, it is locally common, it faces no major threats and its population seems to be steady. For these reasons, the IUCN has listed the species as being of "least concern". [1]

Related Research Articles

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<span class="mw-page-title-main">Heteromyidae</span> Family of rodents

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<span class="mw-page-title-main">Little desert pocket mouse</span> Species of rodent

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<span class="mw-page-title-main">Nelson's pocket mouse</span> Species of rodent

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<span class="mw-page-title-main">Banner-tailed kangaroo rat</span> Species of rodent

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<span class="mw-page-title-main">Silky pocket mouse</span> Species of rodent

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.

<span class="mw-page-title-main">San Joaquin pocket mouse</span> Species of rodent

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.

<span class="mw-page-title-main">Little pocket mouse</span> Species of rodent

The little pocket mouse is a species of rodent in the family Heteromyidae. It is found in Baja California and Sonora in Mexico and in Arizona, California, Idaho, Nevada, Oregon and Utah in the United States. Its natural habitat is subtropical or tropical dry lowland grassland. It is a common species and faces no particular threats and the IUCN has listed it as being of "least concern".

<span class="mw-page-title-main">Merriam's pocket mouse</span> Species of rodent

Merriam's pocket mouse is a species of rodent in the family Heteromyidae. It is found in northeast Mexico and New Mexico, Oklahoma and Texas in the United States. Its habitat is shortgrass prairie, desert areas with scrub and arid shrubland. The species is named to honor Clinton Hart Merriam, a biologist who first described several other members of the genus Perognathus, and first elucidated the principle of a "life zone" as a means of characterizing ecological areas with similar plant and animal communities.

<span class="mw-page-title-main">Great Basin pocket mouse</span> Species of rodent

The Great Basin pocket mouse is a species of rodent in the family Heteromyidae. It is found in British Columbia in Canada and the western United States.

<span class="mw-page-title-main">Pacific pocket mouse</span> Subspecies of rodent

The Pacific pocket mouse, Perognathus longimembris pacificus, is endemic to California. It lives in sandy coastal soils of the coastal sage scrub ecoregion. It eats seeds and some insects. It was believed to be extinct until 1993, when a small population was discovered. It is now a federally listed Endangered animal species.

References

  1. 1 2 3 Linzey, A.V. & Hammerson, G. (NatureServe) (2008). "Perognathus fasciatus". IUCN Red List of Threatened Species . 2008. Retrieved 14 September 2014.
  2. Patton, J.L. (2005). "Family Heteromyidae". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 856–857. ISBN   978-0-8018-8221-0. OCLC   62265494.
  3. 1 2 3 4 Manning, Richard W.; Jones, J. Knox Jr. (1988). "Perognathus fasciatus". Mammalian Species (303): 1–4. doi:10.2307/3504144. JSTOR   3504144.
  4. Gummer, David L.; Kissner, Kelley J. (2003-03-01). "Olive-backed Pocket Mouse (Perognathus fasciatus)" (PDF). Alberta Species at Risk Report No. 86. Alberta Environment and Sustainable Resource Development. Retrieved 2014-08-22.