Cratogeomys castanops 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Geomyidae

Scientific Name: Cratogeomys castanops
Species Authority: (Baird, 1852)
Common Name(s):
English Yellow-faced Pocket Gopher
Pappogeomys castanops (Baird, 1852)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Linzey, A.V.
Reviewer(s): McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)
Listed as Least Concern in view of its wide distribution, presumed large population, lack of major threats, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.
Previously published Red List assessments:
1996 Lower Risk/least concern (LR/lc)

Geographic Range [top]

Range Description: This species is known from the south-central USA and north-eastern Mexico. It occurs from the Arkansas River drainage in south-eastern Colorado and western Kansas southward to south of the Rio Grande in eastern Chihuahua and north-eastern Durango.
Countries occurrence:
Mexico; United States (Colorado, Kansas, New Mexico, Oklahoma, Texas)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is common throughout its range.
Current Population Trend: Stable
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: Yellow-faced Pocket Gophers are found in light soils such as the sandy/silty soils of valleys and river bottoms. When forced to inhabit rocky or dense soil areas this species does poorly and has lower population densities. Throughout its range, these areas of suitable soil correspond with mesquite and cactus communities in the west, and grassland communities in the east.

The burrow system of this species may be up to 76 m long, including a main shaft with several shorter tunnels branching off to serve as foraging routes, as well as a deeper tunnel area with the nest and food storage areas. These burrows are occupied by one individual, except during the mating season when a pair may inhabit a burrow.
The diet consists mainly of the underground portions of plants and low-growing green vegetation. Females typically have two litters per year, one in early spring and the other in late summer, with 1-3 young in each litter (Davidow-Henry 1989).
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no major threats to this species. However, like many other gophers, this species is considered an agricultural pest and may cause damage to orchards and crops. As a result populations are often reduced by trapping and use of rodenticide (Davidow-Henry 1989). Populations may also be controlled by managing for the presence of large predatory birds including hawks and owls.

Conservation Actions [top]

Conservation Actions: There are several protected areas within this species' range.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability: Suitable  
3. Shrubland -> 3.4. Shrubland - Temperate
suitability: Suitable  
4. Grassland -> 4.4. Grassland - Temperate
suitability: Suitable  
14. Artificial/Terrestrial -> 14.2. Artificial/Terrestrial - Pastureland
suitability: Marginal  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
In-Place Species Management
In-Place Education

Bibliography [top]

Davidow-Henry, B. R., Jones Jr., J. K. and Hollander, R. R. 1989. Cratogeomys castanops. Mammalian Species 338: 1-6.

Wilson, D.E. and Ruff, S. 1999. The Smithsonian Book of North American Mammals. Smithsonian Institution Press, Washington, DC, USA.

Citation: Linzey, A.V. 2008. Cratogeomys castanops. The IUCN Red List of Threatened Species 2008: e.T16025A5358030. . Downloaded on 30 May 2016.
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