Notiosorex crawfordi 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Eulipotyphla Soricidae

Scientific Name: Notiosorex crawfordi (Coues, 1877)
Common Name(s):
English Desert Shrew
Taxonomic Notes: In the past there was one wide ranging species, Notiosorex crawfordi. Now four species are recognized in the genus: crawfordi, cockrumi, evotis and villai (Carraway and Timm 2000).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-09-08
Assessor(s): Timm, R., Matson, J., Woodman, N. & Castro-Arellano, I.
Reviewer(s): Amori, G.
Listed as Least Concern because of its wide distribution, presumed large population, occurrence in a number of protected areas, 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 throughout the southeastern United States and in Mexico in Baja California Peninsula, Chihuahua, Coahuila, Durango, Hidalgo, Jalisco, Nuevo Leon, San Luis Potosi, Sinaloa, Sonora and Zacatecas (Carraway, 2007).

It ranges up to 2,600 m asl in Arizona, and 2,317 in Zacatecas in Mexico.
Countries occurrence:
Mexico; United States (Arizona, California, Colorado, New Mexico, Oklahoma, Texas)
Additional data:
Upper elevation limit (metres):2600
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species status is difficult to study; specimens are from widespread localities and generally have been taken opportunistically; the few intensive local studies suggest that the animals are common in suitable habitat (Wilson and Ruff, 1999).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Typical habitat is desert shrub, including plant communities dominated by mesquite, agave, cholla, and oakbrush. However, the animals also have been captured in riparian woodlands, pinyon-juniper and ponderosa pine woodlands, and grassy or gravelly desert washes. Found in arid areas having adequate cover for resting and nesting; deserts, semiarid grassland with scattered cactus and yucca, chaparral slopes, alluvial fans, sagebrush, gullies, juniper woodland, riparian associations, village dumps.

The diet in the wild has not been studied in detail. Foods accepted by captives have includes mealworms, cutworms, cock-roaches, crickets, earwigs, sowbugs, months, beetles, centipedes, and carrion of mammals, birds, and lizards. Its reproductive cycle is unknown; some pregnant females have been recorded from April to November. The gestation period is unknown; a typical litter is 3 to 5 young (Wilson and Ruff, 1999).

In California and Baja California it can be found in chaparral (John Matson pers. comm.).
Generation Length (years):1

Threats [top]

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

Conservation Actions [top]

Conservation Actions: This species is listed as a threatened species in Mexico (Norma Oficial Mexicana, 2002). It occurs in several protected areas in the United States.

Errata [top]

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

Citation: Timm, R., Matson, J., Woodman, N. & Castro-Arellano, I. 2016. Notiosorex crawfordi (errata version published in 2017). The IUCN Red List of Threatened Species 2016: e.T41456A115187458. . Downloaded on 22 May 2018.
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