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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
Animalia	Chordata	Mammalia	Rodentia	Cricetidae

Scientific Name:	Oligoryzomys longicaudatus
Species Authority:	(Bennett, 1832)
Common Name(s): English – Long-tailed Pygmy Rice Rat

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2008
Date Assessed:	2008-06-30
Assessor(s):	Pardinas, U., D'Elia, G., Teta, P. & Patterson, B.
Reviewer(s):	Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
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 at nearly the rate required to qualify for listing in a threatened category.
Previously published Red List assessments:	1996 – Lower Risk/least concern (LR/lc) Download assessment

Geographic Range [top]

Range Description:	This species occurs in northern Chile and northwestern Argentina, southwards along the Andes to approximately to 50°S latitude; extralimital in east-central Argentina (Buenos Aires Province); range limits uncertain (Musser and Carleton 2005).
Countries occurrence:	Native: Argentina; Chile
Additional data:
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	This is a abundant species.
Current Population Trend:	Stable
Additional data:	♦ Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology:	Forest (subantarctic and valdivian), matorral and steppe. It is reservoir of the hanta virus.
Systems:	Terrestrial

Threats [top]

Major Threat(s):

No major threats for this species.

Conservation Actions [top]

Conservation Actions:

It's found in several protected areas.

Classifications [top]

Bibliography [top]

Musser, G.G. and Carleton, M.D. 2005. Superfamily Muroidea. In: D.E. Wilson and D.A. Reeder (eds), Mammal Species of the World: a geographic and taxonomic reference, pp. 894-1531. The John Hopkins University Press, Baltimore, USA.