Scandinavian Mountains over 2000m - Flora & Fauna

Scandinavian Mountains over 2000 metres - James Baxter

Flora & FaunaMammals › Lemming

Lemnus lemnus, Lemming, Lemen. 12cm.

A quite common resident of the mountain birch and tundra zones, which can become very widespread and abundant in a lemming year.

They can have 10 young per litter and 6 litters per summer. They reach sexual maturity after 2 weeks, so if conditions are good they can reach huge numbers. This roughly happens every 4 years.

They eat grasses and mosses. They live in burrows under stones in summer and large tunnel systems below the snow in winter. The sexes are alike.

They can live up to 2 years.