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rock vole

Fact File

Scientific Name: Microtus chrotorrhinus

Classification: Mammalia, Order Rodentia, Family Cricetidae

Identifying Characteristics

This species is a medium sized vole with a total length of 140-185 mm, and a weight of 30-48 grams. The upperparts are grayish brown with black-tipped hairs and the face has a yellowish to dull orange-rufous wash, which is most prominent on the snout and decreases in intensity toward the ears. The breeding season is from early spring to late fall with two to three litters produced per year of 1-7 young. Rock voles are primarily diurnal and are most active in the morning and they spend a considerable amount of time in subterranean activities. They are often caught in subsurface runways among rocks. Rock voles share their subterranean habitats with red-backed mouse these two species apparently don’t compete or exclude each other. Rock voles are prey for bobcat, timber rattlesnakes, copperheads, and short-tailed shrew.

Distribution:

Although there has been considerable effort to locate rock voles in Virginia, to date it has been found only in the Valley of Little Back Creek, Bath County. Rock voles are considered a relict species. Habitat on Whitetop and Mount Rogers appears suitable. Rocks and talus are an important feature of its habitat throughout its range. Also water either in the form of surface on sub-surface streams is another important component of its habitat. It inhabits sites characterized by an abundance of mosses and forbs within forested areas.

Last updated: August 18, 2023

The Virginia Department of Wildlife Resources Species Profile Database serves as a repository of information for Virginia’s fish and wildlife species. The database is managed and curated by the Wildlife Information and Environmental Services (WIES) program. Species profile data, distribution information, and photography is generated by the Virginia Department of Wildlife Resources, State and Federal agencies, Collection Permittees, and other trusted partners. This product is not suitable for legal, engineering, or surveying use. The Virginia Department of Wildlife Resources does not accept responsibility for any missing data, inaccuracies, or other errors which may exist. In accordance with the terms of service for this product, you agree to this disclaimer.