Information Page for Sorex dispar (Long-tailed shrew)


Photographer: Unknown

The long-tailed shrew inhabits the mountains from New Brunswick, Canada, south to Tennessee and North Carolina. They are found primarily at the higher elevations in the park. Preferred habitat for these shrews include talus slopes and rock slides in both deciduous and coniferous forests. They have been collected in man-made, artificial talus created by road-building in park. The long-tailed shrew has been designated as a species of "state concern" in North Carolina.

Species Measurements:
- Adult Total Length: 110-132 mm (4?-4? in.)
- Tail: 50-59 mm (2-2⅜ in.)
- Hind Foot: 13-16.5 mm (⅝ in.)
- Weight: 4-8 g (1/10-? oz.)

Physical Characteristics:
The long-tailed shrew is a medium-sized shrew with slate-gray pelage. The underparts may be slightly paler than the back. The long, thick, sparsely haired tail is nearly uniform in color, being blackish above and only slightly paler below. The feet are whitish. Shrews possess long tapering snouts, and tiny eyes and ears. Hearing and smelling are acute. The tips of the incisor teeth are dark chestnut in color. Shrews have five toes on each foot.

Habitat:
Preferred habitat for these shrews include talus slopes and rock slides in both deciduous and coniferous forests. They have been collected in man-made, artificial talus created by road-building in park. They also inhabit the subterranean tunnels that occur in the rocky crevices between boulders, and sometimes have been found beneath moss-covered logs in damp coniferous forests.

Reproduction:
The reproductive season appears to extend from April through August with litter sizes ranging from 2 to 5 young. Three males and three females taken November 24, December 3, and December 19 were all young of the year (Conaway and Pfitzer, 1952). Shrew nests are about 6 to 8 inches in diameter, with a 2 to 4 inch inside diameter. They are composed of finely shredded grasses and leaves. Young are weaned, and independent, at 4 weeks of age.

Longevity:
Long-tailed shrews probably do not survive more than two years in the wild.

Terrestrial Ecology:
Long-tailed shrews in the park have been recorded feeding on beetles and spiders.

The home range of shrews probably covers an area of up to 1 acre.

Predators and Defense:
Snakes and weasels are potential predators.

Parasites:
None recorded from the park.

The long-tailed shrew inhabits the mountains from New Brunswick, Canada, south to Tennessee and North Carolina.

Long-tailed shrews are found primarily at the higher elevations in the park, although several have been recorded in Greenbrier.

References:

Conway, C.H. 1952. Life History of the Water Shrew (Sorex palustris navigator). American Midland Naturalist 48(1): 219-248.

Kirkland, G.L., Jr. 1981. Sorex dispar and Sorex gaspensis. Mammalian Species No. 155: 1 - 4. American Society of Mammalogists.

Kirkland, G.L., Jr. 1999. Long-tailed Shrew. Pages 21-22. In: Wilson, D.E. and S. Ruff (editors). The Smithsonian Book of North American Mammals. Smithsonian Institution Press, Washington, D.C.

Komarek, E. V. and R. Komarek. 1938. Mammals of the Great Smoky Mountains. Bulletin of the Chicago Academy of Science 5(6): 137-162.

Linzey, D. W. 1995a. Mammals of Great Smoky Mountains National Park. The McDonald & Woodward Publishing Company, Inc., Blacksburg, Virginia.

Linzey, D. W. 1995b. Mammals of Great Smoky Mountains National Park-1995 Update. Journal of the Elisha Mitchell Scientific Society 111(1): 1-81.

TAXA LINKS
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Insectivora
Family:
Soricidae
Elevation Distribution:
Phenology




Park Sensitive Species? Yes




Taxon Authority:
Batchelder

For More Information Click the Links Below!
* Park distribution
map not available for
sensitive species *
Animal Diversity Page Wikipedia Page Univ Mich Biokids Page iNaturalist Taxa Page

- - Page Author: Dr. Donald W. Linzey and Christy Brecht, Wytheville Community College, Wytheville, VA - -

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