Bank vole

Clethrionomys glareolus

TAXONOMY

Clethrionomys glareolus (Schreber, 1780), Denmark. At least 30 subspecies have been described, but the taxonomic status of many of these is uncertain.

OTHER COMMON NAMES

None known.

PHYSICAL CHARACTERISTICS

Head and body length 5-8 in (12.5-20 cm); weight 0.5-2 oz (15-50 g). Upperparts dark gray with reddish tint, underparts dark gray to white.

DISTRIBUTION

Western Europe, across Russia to north Asia. HABITAT

Forest, scrub, parkland, gardens, and hedgerows.

BEHAVIOR

Both nocturnal and diurnal, living in burrows and climbing in low vegetation. Populations in the north of its range are cyclic, while southern ones are more stable.

FEEDING ECOLOGY AND DIET

Seeds, fruit, buds, bark, and insects.

REPRODUCTIVE BIOLOGY

Produces litters of 3-5 young following a gestation of 16-22 days. It will breed all year if conditions are favorable and tree seed is available.

CONSERVATION STATUS

Not threatened.

SIGNIFICANCE TO HUMANS None known. ♦

PHYSICAL CHARACTERISTICS

Head and body length 4.5-7.5 in (12-19 cm); weight 0.7-1.9 oz (20-55 g). Upperparts gray or brown, underparts whitish.

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