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A lemming is a small rodent, usually found in or near the Arctic in tundra biomes.Lemmings form the subfamily Arvicolinae (also known as Microtinae) together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters and gerbils.
The Norway lemming, also known as the Norwegian lemming (Lemmus lemmus) is a common species of lemming found in northern Fennoscandia, where it is the only vertebrate species endemic to the region. The Norway lemming dwells in tundra and fells , and prefers to live near water.
These lemmings are found predominantly in tundra or high elevations. Populations can fluctuate widely and mass migrations do take place. This mass migration is probably the source of the myth that lemmings commit mass suicide. These intense population booms appear to be most common in the northern part of its range (such as Lapland).
The Canadian lemming was formerly thought to be a subspecies of the Siberian brown lemming (Lemmus sibiricus), but those were split into two distinct species. They were still considered the same species as the Beringian lemming ( Lemmus nigripes ); the combined species was named the North American brown lemming with the scientific name L ...
Florida bog lemming (S. australis Simpson 1928) [4]; Bunker's bog lemming (S. bunkeri Hibbard 1939) [3] [4]Morgan's bog lemming (S. morgani Martin et al. 2003) [3]A number of other fossil species have been included here but have since been transferred to other genera, such as Mictomys [5] and Praesynaptomys.
Collared lemming lying on ground. The northern collared lemming or Nearctic collared lemming (Dicrostonyx groenlandicus), sometimes called the Peary Land collared lemming in Canada, is a small lemming found in Arctic North America and Wrangel Island. At one time, it was considered to be a subspecies of the Arctic lemming (Dicrostonyx torquatus).
Very little information is available about this species' life as they are hard to find and study. [3] The northern bog lemming is a small, reddish-brown rodent with a short tail, and distinct markings on their upper teeth. These markings, along with having four pairs of teats, distinguishes this species from the southern bog lemming. [4]
Like other lemmings, it belongs to the family Cricetidae of rodents. It is endemic to Russia, where it has a wide range throughout Siberia , from the region just south of the White Sea east all the way to the Verkhoyansk Range , which serves as a barrier between it and the East Siberian lemming ( L. paulus ), which was formerly considered ...