Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Cricetidae

Scientific Name: Aegialomys xanthaeolus
Species Authority: (Thomas, 1894)
Common Name(s):
English Yellowish Rice Rat, Yellowish Oryzomys
Oryzomys xanthaeolus Thomas, 1894
Oryzomys xantheolus Thomas, 1894 [orth. error]
Taxonomic Notes: Oryzomys is a generic synonym (Weksler et al. 2006). This is possibly a species complex.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Zeballos, H. & Weksler, M.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
This species is listed as Least Concern in view of its wide distribution, presumed large population, it occurs in a number of protected areas, has a tolerance of a degree of habitat modification, and because it is unlikely to be declining fast enough to qualify 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 species is known from west central Ecuador to west Peru (Musser and Carleton, 2005). It has an altitudinal range of 500 to 1,800 m.
Countries occurrence:
Ecuador; Peru
Lower elevation limit (metres): 500
Upper elevation limit (metres): 1800
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is uncommon in Ecuador (Tirira in prep.). It is a common species in Peru. The populations fluctuate with seasonal and El Niño weather patterns.
Current Population Trend: Stable
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species is nocturnal, terrestrial, and solitary. It is present in dry forest, desert, inter-Andean valleys and Lomas habitat. It is well adapted to secondary vegetation, plantations and cultivated areas.
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no major threats to this species.

Conservation Actions [top]

Conservation Actions: It is present in several protected areas in Ecuador and Peru.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability: Suitable  
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
suitability: Suitable  
8. Desert -> 8.1. Desert - Hot
suitability: Suitable  
14. Artificial/Terrestrial -> 14.1. Artificial/Terrestrial - Arable Land
suitability: Suitable  
14. Artificial/Terrestrial -> 14.2. Artificial/Terrestrial - Pastureland
suitability: Suitable  
14. Artificial/Terrestrial -> 14.6. Artificial/Terrestrial - Subtropical/Tropical Heavily Degraded Former Forest
suitability: Marginal  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
1. Research -> 1.1. Taxonomy

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.

Weksler, M., Percequillo, A. R. and Voss, R. S. 2006. Ten new genera of Oryzomyine rodents (Cricetidae: Sigmodontinae). American Museum Novitates 3537: 1-29.

Citation: Zeballos, H. & Weksler, M. 2008. Aegialomys xanthaeolus. The IUCN Red List of Threatened Species 2008: e.T15616A4913060. . Downloaded on 07 October 2015.
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