Pappogeomys bulleri ssp. alcorni 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Geomyidae

Scientific Name: Pappogeomys bulleri ssp. alcorni Russell, 1957
Parent Species:
Common Name(s):
English Alcorn's Pocket Gopher
Pappogeomys alcorni Russell, 1957
Taxonomic Notes: Previously considered a separate species, Pappogeomys bulleri ssp. alcorni has been demoted to subspecies level. This is an amended assessment to account for the taxonomic change.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2bc ver 3.1
Year Published: 2016
Date Assessed: 2008-07-01
Assessor(s): Castro-Arellano, I., Vázquez, E., Cuarón, A. & Álvarez, S.
Reviewer(s): McKnight, M. (Global Mammal Assessment Team) & Amori, G. (Small Nonvolant Mammal Red List Authority)
Listed as Critically Endangered because of a drastic population decline, estimated to be more than 80% over the last ten years, inferred from research that showed the species to be abundant in 1997-1998 and a more recent study that was unsuccessful in locating it. The decline has occurred, and is probably continuing, due to fragmentation of habitat, habitat loss from deforestation, and targeted killing by farmers.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is known from south Jalisco (Mexico), in the Sierra del Tigre (Patton 2005).
Countries occurrence:
Mexico (Jalisco)
Additional data:
Lower elevation limit (metres):1600
Upper elevation limit (metres):2000
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species was recently searched for and was not found within its range (Demastes et al. 2002). A previous study in 1997-1998, focusing on burrowing habitats of this gopher, found the species to be abundant in its range (S. Alvarez pers. comm.).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species is poorly known. It is found in pine-oak forests with iron-rich soils (Ceballos and Oliva 2005).

Threats [top]

Major Threat(s): It is persecuted by farmers as a pest. Its habitat is being deforested for timber and agriculture.

Conservation Actions [top]

Conservation Actions: This species needs protection from persecution by farmers and conservation of its remaining habitat. This species was recently searched for and was not found within its range (Demastes et al. 2002), despite a previous study finding the species to be abundant. More field work needs to be undertaken to better understand the status of this species.

Citation: Castro-Arellano, I., Vázquez, E., Cuarón, A. & Álvarez, S. 2016. Pappogeomys bulleri ssp. alcorni. The IUCN Red List of Threatened Species 2016: e.T16023A101244395. . Downloaded on 20 August 2018.
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