Common Name
Nearctic Brown Lemming
Order
Rodentia
Family
Cricetidae
Species Name
Lemmus trimucronatus
States
Alaska
Distribution
N Chukotskiy region in far NE Siberia; in North America, from W Alaska east to Baffin Island and Hudson Bay, and south in the Rocky Mountains to C British Columbia, Canada; also Nunivak and St. George islands in the Bering Sea, Pribilof Islands, and Canad
Notes
Active day and night. Eats grass and sedges in summer; in winter relies heavily on moss for food. Populations go through a boom-bust cycle every 3-4 years. Lives in low-lying, wet tundra with dense vegetation.