Cratogeomys merriami 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Geomyidae

Scientific Name: Cratogeomys merriami
Species Authority: (Thomas, 1893)
Common Name(s):
English Merriam’s Pocket Gopher, Merriam's Pocket Gopher
Pappogeomys merriami (Thomas, 1893)
Taxonomic Notes: A recent taxonomic revision of Cratogeomys merriami based on multiple characters resulted in two species being split from C. merriami: C. fulvescens and C. perotensis (Hafner et al. 2005).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Álvarez-Castañeda, S.T., Castro-Arellano, I., Lacher, T. & Vázquez, E.
Reviewer(s): McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)
Listed as Least Concern because, although its extent of occurrence is less than 20,000 km2, it is common and adaptable with a presumed large population, and 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: Merriam's Pocket Gopher is endemic to Mexico, where it is found in the southern part of the Valley of Mexico, Sierra de Las Cruces, Sierra de Ajusco, the Popocatépetl-Iztaccíhutl range, and from Lerma to western Puebla in the Valley of Toluca (Hafner et al. 2005). The species ranges in elevation from 1,800 m to 4,000 m asl (Hafner et al. 2005).
Countries occurrence:
Lower elevation limit (metres): 1800
Upper elevation limit (metres): 4000
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is patchily distributed, but common to abundant.
Current Population Trend: Stable
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species lives in grasslands (sacatonal), and temperate forests of pine and oak. It is also known to occur in agricultural lands and rangelands (Whisson and Villa-C 1994).
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no major threats to this species. In many parts of its range, however, habitat is being degraded or lost to expanding agriculture and human settlement.

Conservation Actions [top]

Conservation Actions: There are several protected areas that overlap with this species' range.

Citation: Álvarez-Castañeda, S.T., Castro-Arellano, I., Lacher, T. & Vázquez, E. 2008. Cratogeomys merriami. The IUCN Red List of Threatened Species 2008: e.T16028A5360018. . Downloaded on 01 December 2015.
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