Central Texas pocket gopher
| Central Texas pocket gopher | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Geomyidae |
| Genus: | Geomys |
| Species: | G. texensis |
| Binomial name | |
| Geomys texensis Merriam, 1895 | |
The central Texas pocket gopher or Llano pocket gopher (Geomys texensis) is a species of rodent in the family Geomyidae. It is endemic to central Texas in the United States.[1]
Description
The central Texas pocket gopher is very similar in appearance to its close relatives, the plains pocket gopher and Knox Jones's pocket gopher, and the three species can be difficult to distinguish visually. Males average 18 cm (7.1 in) in length, and females 15 cm (5.9 in); both sexes have a tail about 6 or 7 cm (2.4 or 2.8 in) long. The fur is brownish over most of the body, with a paler, yellowish collar about the throat, and white underparts and feet. The winter coat is darker than the summer one, with the underparts sometimes pale grey in color.[2]
Biology
As its name implies, the species is found only in central Texas, where it inhabits areas with loamy soils suitable for digging. They are solitary animals, occupying tunnel systems that are typically at least 2 m (6 ft 7 in) apart. The burrows contain multiple chambers, including food caches and latrines in addition to resting chambers, and vertical corkscrew tunnels to deter predators. They give birth to a litter once each year.[2]
One species of Ischnoceran chewing louse, Geomydoecus heaneyi, is only known to live in the fur of central Texas pocket gophers.[2]
Subspecies
Three subspecies have been identified:[2]
- G. t. texensis - Mason, McCulloch, and San Saba counties
- G. t. bakeri - Medina, Uvalde, and Zavala counties
- G. t. llanensis - Gillespie, Kimble and Llano counties
References
- 1 2 Hafner, D.J., Hammerson, G. & Cannings, S. (2008). "Geomys texensis". IUCN Red List of Threatened Species. Version 2009.2. International Union for Conservation of Nature. Retrieved 2 February 2010.
- 1 2 3 4 Michael J. Cramer and Guy N. Cameron (2001). "Geomys texensis" (PDF). Mammalian Species: Number 679: pp. 1–6. doi:10.1644/1545-1410(2001)679<0001:GT>2.0.CO;2.