Oligoryzomys arenalis

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	CRICETIDAE

Scientific Name:

Oligoryzomys arenalis

Species Authority:

(Thomas, 1913)

Common Name/s:

English

–

Sandy Pygmy Rice Rat

Taxonomic Notes:

This might be a species complex which needs further taxonomic review (H. Zeballos pers. comm.).

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2008
Assessor/s:	Zeballos, H., Vivar, E. & Weksler, M.
Reviewer/s:	Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Contributor/s:
Justification: This species is listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.

Geographic Range [top]

Range Description:	This species ranges in western Peru. It is also present in the high northern Peruvian inter-Andean valleys near Chachapoyas, Amazonas Department. It has an elevational range from 400 to 2,850 m.
Countries:	Native: Peru
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	It is uncommon. The species has seasonal population fluctuations, influence by El Niño effect.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	It is present in dry coastal and semi arid biomes, shrubland, inter-Andean valleys and inundated areas. It can be found in secondary or disturbed habitat, but it is not present in cultivated areas.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	It is threatened by displacement in its habitat by introduced murids (such as Rattus). There is some habitat loss in the south of the species range.

Major Threat(s):

It is threatened by displacement in its habitat by introduced murids (such as Rattus). There is some habitat loss in the south of the species range.

Conservation Actions [top]

Conservation Actions:	It is present in at least eight small protected areas. Further research is needed into the taxonomy of this species.

Conservation Actions:

It is present in at least eight small protected areas. Further research is needed into the taxonomy of this species.

Bibliography [top]

	Zeballos, H., Pacheco, V. and Baraybar, L. 2001. Diversidad y Conservacion de las Mamiferas de Arequipa, Peru. Revista Peruana de Biología 8(2): 94-104. Zeballos, H., Villega, L. Gutieruez, R., Caballera, K. and Jimenez, P. 2000. Vertebrados de las Lomas de Atiquipa and Mejie, Sur al Peru. Revista Ecologica de Latin America 7(3): 11-18.

Zeballos, H., Pacheco, V. and Baraybar, L. 2001. Diversidad y Conservacion de las Mamiferas de Arequipa, Peru. Revista Peruana de Biología 8(2): 94-104.

Zeballos, H., Villega, L. Gutieruez, R., Caballera, K. and Jimenez, P. 2000. Vertebrados de las Lomas de Atiquipa and Mejie, Sur al Peru. Revista Ecologica de Latin America 7(3): 11-18.

Citation:	Zeballos, H., Vivar, E. & Weksler, M. 2008. Oligoryzomys arenalis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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