Sorex neomexicanus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Eulipotyphla Soricidae

Scientific Name: Sorex neomexicanus Bailey, 1913
Common Name(s):
English New Mexico Shrew
Taxonomic Source(s): Kays, R. and Wilson, D.E. 2009. Mammals of North America. Princeton University Press, Princeton.
Taxonomic Notes: Alexander (1996) conducted a morphometric analysis of skulls and determined that the shrew heretofore known as Sorex obscurus neomexicanus, Sorex vagrans neomexicanus, or Sorex monticolus neomexicanus should be recognized as a distinct species, S. neomexicanus. This shrew was considered a subspecies of Sorex monticolus by George, in Wilson and Ruff (1999). MtDNA data of Demboski and Cook (2001) are not consistent with recognition of S. neomexicanus as a distinct species; instead, S. neomexicanus was nested phylogenetically within various populations of S. monticolus from southwestern North America. Nevertheless, Baker et al. (2003) followed Alexander in recognizing S. neomexicanus as a distinct species, as did Hutterer (in Wilson and Reeder 2005).

Assessment Information [top]

Red List Category & Criteria: Data Deficient ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): NatureServe (Hammerson, G.), Woodman, N., Reid, F. & Matson, J.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Chanson, J. (Global Mammal Assessment Team)
Listed as Data Deficient as there is doubt regarding the taxonomic validity of this species, there is no population information or knowledge about threats. It may occur more widely than is currently known but more research is needed.

Geographic Range [top]

Range Description:The known range of this species includes the Capitan and Sacramento mountains, in south-central New Mexico, United States (Frey 2004; Hutterer, in Wilson and Reeder 2005); the range possibly may extend as far east as the Pecos River (Alexander 1996).
Countries occurrence:
United States (New Mexico)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population trend is unknown but, based on habitat considerations, it probably is stable or declining at a rate of less than 10% over 10 years.
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Referring to S. monticolus in the United States Southwest and Mexico, George (in Wilson and Ruff 1999) described the habitat as "meadows and in leaf litter in canyons of coniferous forests, often along streams." Findley et al. (1975) described the habitat as mesic conifer-aspen forest in sheltered canyons.

Threats [top]

Major Threat(s): It has only a small known range in the Capitan and Sacramento mountains, New Mexico. It may be more widely distributed than currently known but little information is available. Its small range may make this species more vulnerable to significant declines from localized threats, but no major threats have been identified.

Conservation Actions [top]

Conservation Actions: The New Mexico shrew is not known to occur in any protected areas. This species should be sought in the Gallinas and Guadelupe mountains (Frey 2004).

Citation: NatureServe (Hammerson, G.), Woodman, N., Reid, F. & Matson, J. 2008. Sorex neomexicanus. The IUCN Red List of Threatened Species 2008: e.T136608A4317858. . Downloaded on 20 June 2018.
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