Sorex vagrans 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Eulipotyphla Soricidae

Scientific Name: Sorex vagrans Baird, 1857
Common Name(s):
English Vagrant Shrew
Taxonomic Notes: Sorex orizabae was included as a subspecies of vagrans by Hennings and Hoffmann (1977), and later included as a subspecies of oreopolus by Junge and Hoffmann (1981), but most recently is considered a separate species by Carraway (2007).

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-09-01
Assessor(s): Matson, J., Woodman, N. & Reid, F.
Reviewer(s): Amori, G.
Listed as Least Concern in view of its wide distribution, presumed large population, 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 found from southern British Columbia, Canada south to Monterrey, California, and east to Idaho, western Montana, and northern Utah in the United States. A disjunct subspecies S. vagrans orizabae found in the transverse volcanic belt of Mexico was recently elevated to species status (Carraway, 2007).
Countries occurrence:
Canada (British Columbia); United States (California, Idaho, Nevada, Oregon, Utah, Washington)
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is considered abundant (Wilson and Ruff, 1999).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:These shrews live in moist habitats and are often found along lakesides, streams, and in coastal salt marshes. They also occur in mesic forest (Wilson and Ruff, 1999). They are known to nest in decayed logs. The nests are approximately 4" in diameter and are made of dry grass. It primarily feeds on forest insects (eggs, larvae, pupae, and adults), slugs, earthworms, and other invertebrates. Occasionally may feed on salamanders and other small vertebrates. It is active all year. Throughout the year it is most active at night. In spring, diurnal activity increases.
Generation Length (years):1

Threats [top]

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

Conservation Actions [top]

Conservation Actions: It is found in several protected areas and is common where it occurs (John Matson 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: Matson, J., Woodman, N. & Reid, F. 2016. Sorex vagrans. (errata version published in 2017) The IUCN Red List of Threatened Species 2016: e.T41425A115186125. . Downloaded on 19 September 2017.
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