Calomys expulsus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Cricetidae

Scientific Name: Calomys expulsus (Lund, 1841)
Common Name(s):
English Rejected Vesper Mouse, Caatinga Laucha

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-09-10
Assessor(s): Bonvicino, C.R. & Geise, L.
Reviewer(s): Amori, G.
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.
Previously published Red List assessments:

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.).
Countries occurrence:
Additional data:
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).
Current Population Trend:Increasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This rodent occurs in open vegetation in cerrado and caatinga formations (Bonvicino pers. comm.).
Generation Length (years):1-2

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.).

Errata [top]

Errata reason: This errata assessment has been created because the map was accidentally left out of the version published previously.

Citation: Bonvicino, C.R. & Geise, L. 2016. Calomys expulsus (errata version published in 2017). The IUCN Red List of Threatened Species 2016: e.T136689A115211375. . Downloaded on 24 May 2018.
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