Tympanoctomys barrerae 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Octodontidae

Scientific Name: Tympanoctomys barrerae
Species Authority: (Lawrence, 1941)
Common Name(s):
English Plains Viscacha Rat, Red Vizcacha Rat
Taxonomic Notes: Generic synonym Octomys.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2013
Date Assessed: 2008-07-01
Assessor(s): Ojeda, R. & Bidau, C.
Reviewer(s): Amori, G. & Schipper, J.
Listed as Near Threatened since although its extent of occurrence is less than 20,000 km² and its habitat might be declining, it naturally occurs in severely fragmented populations thus making the species close to qualifying for Vulnerable under criterion B1. It probably occurs in more than ten locations.
Previously published Red List assessments:
2008 Near Threatened (NT)
1996 Vulnerable (VU)
1994 Vulnerable (V)
1990 Vulnerable (V)

Geographic Range [top]

Range Description: This species is endemic to the arid plains of Mendoza Province, central-western Argentina (Woods and Kilpatrick 2005). It has a naturally fragmented distribution.
Countries occurrence:
Lower elevation limit (metres): 300
Upper elevation limit (metres): 1400
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no information available on the population status of this species.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species inhabits the salt basins, sand dunes and open scrubland habitats of the Monte Chaco and Monte Patagonia biomes. It is nocturnal, solitary and lives in complex burrow systems. It feeds (specialized) on halophite plants (Diaz et al., 2000).
Systems: Terrestrial

Threats [top]

Major Threat(s): The loss of habitat to the expanding oil and gas industry is a threat to this species. The population has a naturally fragmented and restricted geographical distribution. In addition it is a habitat specialist (dunes and slat flats) and low population densities (Diaz et al., 2000).

Conservation Actions [top]

Conservation Actions: It is found in the Biosphere Reserve of Nacunan, Mendoza Province.

Citation: Ojeda, R. & Bidau, C. 2013. Tympanoctomys barrerae. The IUCN Red List of Threatened Species 2013: e.T22586A22239326. . Downloaded on 25 November 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided