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Neurotrichus gibbsii

(American shrew mole)

Interesting Facts

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Common Names

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Common Names in English:

American shrew mole, American shrew-mole, Gibb's shrew mole, Gibbs's shrew mole, least shrew mole, shrew-mole

Description

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Habitat

Typically found at an altitude of 0 to 2,765 meters (0 to 9,072 feet).[1]

Ecology: In Washington it is found in moist habitats with soft earth free of sod; lower elevation ravines with deep soils, much vegetative surface litter (logs , leaves), and big-leaf maple and other plants ; less commonly in lakeshore willow thickets; rarely in drier habitats (Dalquest 1948). In Oregon it is most common in riparian alder and alder-salmonberry thickets; less commonly occurs in mature and immature conifer, riparian hardwood, sitka spruce-salal, skunkcabbage marsh , wet pasture, headland prairie, and headland scrub habitats (Maser et al. 1981); also montane areas with low cover of lichen and few snags , and Douglas-fir forest (see Carraway and Verts 1991). In California it occurs in redwood, Douglas-fir, and yellow pine forests and forest edges, usually near streams (Ingles 1965). It constructs runways near the surface of duff layer and deeper but shallow burrows, usually near streams. This species is less fossorial than other moles .

It seems to be more social than other insectivores ; and may travel in loose bands (Dalquest and Orcutt 1942, Maser et al. 1981). Most breeding occurs from early March to mid-May, but even then only a few percent of specimens are in breeding condition. The length of gestation not known. Litter size varies from one to four young, newborns altricial. It is reported to have an XO system of sex determination. The shrew-mole may consume more than its own body weight in food in one day. It feeds primarily on earthworms, gastropods , centipedes, sowbugs, insects, and other invertebrates . It also eats some plant seeds, fungi, and lichens. It is sightless and detects prey with its snout. It is active throughout the year.[2].

List of Habitats:

Taxonomy

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Synonyms

Neurotrichus gibbsii (Baird, 1858)

Notes

Name Status: Accepted Name .

Last scrutiny: 28-Nov-2006

Similar Species

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Members of the genus Neurotrichus

ZipcodeZoo has pages for 1 species and subspecies in this genus:

N. gibbsii (American Shrew-Mole)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal March 11, 2008:

Identifiers

Footnotes

  1. Mean = 543.420 meters (1,782.874 feet), Standard Deviation = 574.040 based on 655 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
  2. Hammerson, G. 2008. Neurotrichus gibbsii. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 02 February 2012. [back]
Last Revised: 7/14/2012