Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Caviidae

Scientific Name: Cavia magna
Species Authority: Ximinez, 1980
Common Name(s):
English Greater Guinea Pig

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Gonzalez, E. & Lessa, E.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Listed as Least Concern because its extent of occurrence is much greater than 20,000 km², it has a presumed large population, and although there are some declines occurring in Uruguay, these are not significant enough for it to be considered for listing in a more threatened category.
Previously published Red List assessments:
1996 Lower Risk/least concern (LR/lc)

Geographic Range [top]

Range Description: This rodent occurs from Rio Grande do Sul and Santa Catarina States, in Brazil, to eastern Uruguay (Eisenberg and Redford, 1999). It occurs in the wetlands of southeast Uruguay and close to the Atlantic coast in southern Brazil, (Ximenez 1980).
Countries occurrence:
Brazil; Uruguay
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: There is no information on population or abundance, but the species is adaptable to grasslands and is assumed to have a stable population.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It occurs along the margins of glens between hills and in association with Cardo caraguata (Eryngium spp.) (Gonzalez 2001). It inhabits grasslands and forest borders (Christoff, A. pers. comm.). The species has a low reproductive rate with gestation greater than two months and usually only 1-2 young (Kraus and Rodel 2004). Reproduction is seasonal (Kraus et al. 2005).
Systems: Terrestrial

Threats [top]

Major Threat(s): Intentional burning of vegetation for cattle ranching is a major threat.

Conservation Actions [top]

Conservation Actions: The species occurs at least in one protected area in Uruguay (Laguna de Castillos) and at least four in Brazil. Further taxonomic studies of this species are required.

Citation: Gonzalez, E. & Lessa, E. 2008. Cavia magna. The IUCN Red List of Threatened Species 2008: e.T4066A10351026. . Downloaded on 09 October 2015.
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