Notiosorex crawfordi

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	EULIPOTYPHLA	SORICIDAE

Scientific Name:

Notiosorex crawfordi

Species Authority:

(Coues, 1877)

Common Name/s:

English

–

Desert Shrew

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Timm, R., Matson, J., Woodman, N. & Castro-Arellano, I.

Evaluator/s:

Amori, G. (Small Nonvolant Mammal Red List Authority) & Chanson, J. (Global Mammal Assessment Team)

Justification:
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.

History:

1996

–

Lower Risk/least concern (Baillie and Groombridge 1996)

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:	Native: Mexico; United States
Range Map:	(click map to view full version)

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).
Population Trend:	Stable

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.).
Systems:	Terrestrial

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.).

Systems:

Terrestrial

Threats [top]

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

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.

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.

Citation:	Timm, R., Matson, J., Woodman, N. & Castro-Arellano, I. 2008. Notiosorex crawfordi. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 04 December 2008.
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