Megasorex gigas 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Eulipotyphla Soricidae

Scientific Name: Megasorex gigas (Merriam, 1897)
Common Name(s):
English Mexican Shrew

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-06-10
Assessor(s): Woodman, N., Álvarez Castañeda, S.T., Castro-Arellano, I. & de Grammont, P.C.
Reviewer(s): Amori, G.
Listed as Least Concern because of its wide distribution, occurrence in a number of protected areas, tolerance to some degree of 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 is known from Nayarit to Guerrero, México (Carraway 2007). The known altitudinal range is from 80 to 1,800 m asl (Armstrong and Jones 1972).
Countries occurrence:
Additional data:
Lower elevation limit (metres):80
Upper elevation limit (metres):1800
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is considered rare (Armstrong and Jones 1972).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It occurs in temperate forest, evergreen forest and deciduous forest, shrublands and coffee fields (Ceballos and Oliva 2005). It has been recorded near streams in damp areas beneath the cover of logs and rocks, and in weedy vegetation away from heavy forest. A female captured in June was lactating (Armstrong and Jones 1972).
Generation Length (years):1

Threats [top]

Major Threat(s): There are no major threats to this species throughout its range. In 2005, 68% of the habitat within the species' range was no longer suitable as a result of agricultural or urban development (Sánchez-Cordero et al. 2005).

Conservation Actions [top]

Conservation Actions: The species is present in the Chamela-Cuixmala Biosphere Reserve (Ceballos and Oliva 2005). It is also found in a private reserve in Colima (Rancho el Jabali) (Ivan Castro-Arellano pers. comm.).

Citation: Woodman, N., Álvarez Castañeda, S.T., Castro-Arellano, I. & de Grammont, P.C. 2016. Megasorex gigas. The IUCN Red List of Threatened Species 2016: e.T41454A22319710. . Downloaded on 24 September 2018.
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