Peary Land Collared Lemming Include the Victoria Collared Lemming Winter Beneath the Snow in Their Tunnels

Wildlife Fact Sheets

PearyDicrostonyx groenlandicus Land Collared Lemming Habitat The Peary land collared lemming is found throughout the Baffin region and in the northeast por- tion of the Kitikmeot region.

Reproduction The breeding season usually begins in early March and lasts until early September. Appearance However, during a short time when their snow tunnels melt and The Peary landcollared lemming is the only rodent that turns they are busy digging their summer tunnels, they may not breed. white in the winter, at which time it looks like a big cottonball. Under the right winter conditions, breeding may start as early as It has wide feet with heavily furred soles and long stiff hairs January. Females are very aggressive during the breeding period. sticking out around the toes. During the summer, its shoul- Gestation is between 19 to 21 days but can be as long as 26 days ders, chest and legs are light to dark brown. It has a grey back due to delayed implantation. There are between 1 and 7 offspring with a black stripe down the middle and a light brown belly. Its with an average of 5 per litter. They are born blind and deaf and fur is long and thick. The average length for males and females weigh about 3.8g. By the end of the second week their eyes and ears is between 13 and 16 cm and the average weight is between 45 are functional and they appear above ground shortly after. Males and 113g. are mature at 46 days, and females at 27 to 30 days.

Food And Feeding Status Survival and Management The collared lemming feeds mainly on dwarf willow leaves and According to the Nunavut Wild Species 2000 report, the status of forbs although it will also eat sedges, grasses, berries, buds and the collared lemming is considered undetermined. Few collared twigs. Clumps of willows may be completely stripped after a lemmings live more than a year in the wild and just over 3 years in year of high lemming populations. captivity. Predators in Nunavut include carnivores and birds.

Behaviour Other Species Found in Nunavut This species has many of the same behaviours as brown lem- Other species of lemmings found in different parts of Nunavut that mings. For example, they also hop around and shadow box differ in appearance and range but have many similarities to the when cornered. Collared lemmings are active throughout the Peary land collared lemming include the Victoria collared lemming winter beneath the snow in their tunnels. During the summer and Richardson's collared lemming. they dig tunnels in the sod. These may be up to 2.5m long, between 10 and 20cm below ground and between 5 to 7.5cm Did You Know? in diameter. The family bonds are strong and both parents care Lemming tunnels include different chambers. The ones used for for the young. The whole family usually stays together until the nesting are lined with dry grasses and sometimes feathers and young reach sexual maturity, at which time fathers may mate muskox wool. Some chambers are used as toilets. with their daughters.

Range The Peary land collared lemming inhabits the arctic tundra zone. In the summer, it lives in higher, rockier, drier areas than the brown lemming but this really depends on the moisture conditions.

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