Calomys expulsus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Calomys expulsus
Species Authority: (Lund, 1841)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Bonvicino, C. & Geise, L.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
This species is listed as Least Concern in because of its wide distribution, presumed large population, occurrence in a number of protected areas, tolerant to habitat modification, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.

Geographic Range [top]

Range Description: This species occurs in northeast and central Brazil, from Piaui and Ceara southwest through Goias and Minas Gerais States (Musser and Carleton, 2005, Bonvicino pers. comm.).
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The species is easy to collect and common (Bonvicino pers. comm.). Its populations can increase rapidly after disturbance to levels where it becomes an agricultural pest (Viera, 1999).
Population Trend: Increasing

Habitat and Ecology [top]

Habitat and Ecology: This rodent occurs in open vegetation in cerrado and caatinga formations (Bonvicino pers. comm.).
Systems: Terrestrial

Threats [top]

Major Threat(s): Habitat destruction is occurring but it is not a major threat to this species (Bonvicino pers. comm.).

Conservation Actions [top]

Conservation Actions: The species occurs in several protected areas within its range (Bonvicino pers. comm.).

Citation: Bonvicino, C. & Geise, L. 2008. Calomys expulsus. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 31 March 2015.
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