Ctenomys occultus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	RODENTIA	CTENOMYIDAE

Scientific Name:

Ctenomys occultus

Species Authority:

Thomas, 1920

Common Name/s:

English

–

Furtive Tuco-tuco

Taxonomic Notes:

Revised by Reig et al. (1966); but also see Cabrera (1961) who included it in mendocinus.

Assessment Information [top]

Red List Category & Criteria:

Endangered B1ab(i,iii) ver 3.1

Year Assessed:

2008

Assessor/s:

Bidau, C., Lessa, E. & Ojeda, R.

Reviewer/s:

Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)

Justification:
Listed as Endangered because its extent of occurrence is less than 5,000 km², its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat

History:

1996

–

Lower Risk/least concern

Geographic Range [top]

Range Description:	This species is known only from type locality in Tucumán, northwestern Argentina, however it is presumed to occur in adjacent provinces (Woods and Kilpatrick, 2005).
Countries:	Native: Argentina
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	There is no information available on the population size of this species.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	There is no information available about the ecology and habitat requirements of this species.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	The original range of this species is under severe pressure from habitat loss and degradation to agricultural expansion, mainly to sugar cane and soy. Most of the lost habitat has been destroyed in the last six years.

Major Threat(s):

The original range of this species is under severe pressure from habitat loss and degradation to agricultural expansion, mainly to sugar cane and soy. Most of the lost habitat has been destroyed in the last six years.

Conservation Actions [top]

Conservation Actions:	There is no information available about any conservation measures being made to protect this species. Further research is necessary to clarify the true status of this species.

Conservation Actions:

There is no information available about any conservation measures being made to protect this species. Further research is necessary to clarify the true status of this species.

Bibliography [top]

	Cabrera, A. 1961. Catílogo de los mam¡feros de America del Sur. Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia 4: 309-732. IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: http://www.iucnredlist.org. (Accessed: 5 October 2008). Reig, O. A., Contreras, J. R. and Piantanida, M. J. 1966. Contribucion a la elucidacion de la sistematica de las entidades genero Ctenomys (Rodentia, Octodontidae). Relaciones de parentesco entre muestras de ocho poblaciones de tucos-tucos inferidas del estudio estadistico de variables del fenotipo y su correlacion con las caracterisicas de cariotipo. Contribuciones Cientificas Facultad Ciencias Exactas Naturales, Universidad Buenos Aires (Zoologia) 2: 299-352. Woods, C. A. and Kilpatrick, C. W. 2005. Infraorder Hystricognathi. In: D. E. Wilson and D. M. Reeder (eds), Mammal Species of the World, pp. 1538-1599. The Johns Hopkins University Press, Baltimore, MD, USA.

Cabrera, A. 1961. Catílogo de los mam¡feros de America del Sur. Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia 4: 309-732.

IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: http://www.iucnredlist.org. (Accessed: 5 October 2008).

Reig, O. A., Contreras, J. R. and Piantanida, M. J. 1966. Contribucion a la elucidacion de la sistematica de las entidades genero Ctenomys (Rodentia, Octodontidae). Relaciones de parentesco entre muestras de ocho poblaciones de tucos-tucos inferidas del estudio estadistico de variables del fenotipo y su correlacion con las caracterisicas de cariotipo. Contribuciones Cientificas Facultad Ciencias Exactas Naturales, Universidad Buenos Aires (Zoologia) 2: 299-352.

Woods, C. A. and Kilpatrick, C. W. 2005. Infraorder Hystricognathi. In: D. E. Wilson and D. M. Reeder (eds), Mammal Species of the World, pp. 1538-1599. The Johns Hopkins University Press, Baltimore, MD, USA.

Citation:	Bidau, C., Lessa, E. & Ojeda, R. 2008. Ctenomys occultus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 10 February 2012.
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