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Geomys personatus

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA MAMMALIA RODENTIA GEOMYIDAE

Scientific Name: Geomys personatus
Species Authority: True, 1889
Common Name/s:
English Texas Pocket Gopher
Taxonomic Notes: Jolley et al. (2000) recommend recognition of G. p. streckeri as a distinct species (G. streckeri), and cite Davis (1986) as supporting documentation.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor/s: Hafner, D.J., Timm, R. & Lacher, T.
Reviewer/s: McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)
Justification:
Listed as Least Concern in view of its wide distribution (though patchily distributed), presumed large population, occurrence in protected areas, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category. There are, however, at least three subspecies that are threatened by continued habitat loss within their restricted ranges.

Geographic Range [top]

Range Description: The Texas pocket gopher has a patchy distribution throughout south Texas and the adjacent north-eastern portion of Tamaulipas, Mexico (Williams 1982).
Countries:
Native:
Mexico (Tamaulipas); United States (Texas)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is common to abundant throughout much of its range. It can also be uncommon in some parts of its range, and is patchily distributed due to its association with specific soil types.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: The Texas pocket gopher prefers loose, sandy soils in open or sparsely wooded areas, with dense soils acting as a barrier to dispersal. They are fossorial animals, spending most of their lives underground. These pocket gophers apparently live alone with each animal having its own burrow system, which includes up to 30 m of tunnels. Diet consists of underground vegetation (roots, bulbs, and rhizomes), occasionally eating surface vegetation within easy reach of the burrow entrance. Breeding occurs between October and February with females producing two litters of 3-4 young each year (Williams 1982).
Systems: Terrestrial

Threats [top]

Major Threat(s): At the species level, G. personatus appears secure. However, the small, restricted populations of three subspecies (maritimus, fuscus, streckeri) are vulnerable to the detrimental effects of habitat modification from agriculture.

Conservation Actions [top]

Conservation Actions: This species occurs is a few protected areas. Further taxonomic work is needed on the subspecies of G. personatus, specifically to determine whether any of the subspecies warrant full species status.
Citation: Hafner, D.J., Timm, R. & Lacher, T. 2008. Geomys personatus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 19 April 2014.
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