Lemmings

Arctic lemmings include true lemmings, of the genus Lemmus, and collared lemmings, of the genus Dicrostonyx. Although both have a circumpolar – though not identical – distribution, the two genera differ in many respects. Dicrostonyx is much more resistant to extreme low temperatures than Lemmus. Consequently, its distribution extends farther north: collared lemmings are found on the northernmost islands of the Canadian Arctic and in northern Greenland, whereas the range of true lemmings reaches down to the boreal zone and does not include Greenland or the northern Canadian islands.

(ARCTIC FLORA AND FAUNA: Status and Conservation. Heikki Henttonen, Vantaa Research Centre, Finnish Forest Research Institute, Finland)

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ABA 2013 Table 03 02 Rodent 

Arctic Biodiversity Assessment (ABA) 2013.

Table 3.2. Summary of major features of small rodent population dynamics at circumpolar monitoring sites with rodent focus. In addition, reports of relative abundance of small rodents in association with breeding bird studies from approximately the last 15 years can be found at the Arctic Birds Breeding Conditions Survey: http://www.arcticbirds.net

 

 

Conservation of Arctic Flora and Fauna (CAFF)

www.caff.is 

The data can be downloaded freely.

Users are requested to reference it source.

Meltofte, H. (ed.) 2013. Arctic Biodiversity Assessment. Status and trends in Arctic biodiversity. Conservation of Arctic Flora and Fauna, Akureyri.

ABA 2013 Box 03 01 LemmingAbundance 

Arctic Biodiversity Assessment (ABA) 2013.

Box 3.1 Figure1. Temporal changes in lemming abundance at various circumpolar sites: A)Taymyr Peninsula, Russia (Siberian brown lemming, stars are years with unquantifi ed high densities; data courtesy of B. Ebbinge & I. Popov); B) Banks Island, Canada (Nearctic collared lemming and Nearctic brown lemming; data courtesy of Parks Canada and L. Nguyen); C) Bylot Island, Canada (Nearctic brown lemming in wet (black circles) and mesic (open circles) habitats; data courtesy G. Gauthier); D) NE Greenland (Nearctic collared lemming at Traill Island (black triangles) and Zackenberg (open triangles); data courtesy of B. Sittler and N.M. Schmidt).

 

 

Conservation of Arctic Flora and Fauna (CAFF)

www.caff.is 

The data can be downloaded freely.

Users are requested to reference it source.

Meltofte, H. (ed.) 2013. Arctic Biodiversity Assessment. Status and trends in Arctic biodiversity. Conservation of Arctic Flora and Fauna, Akureyri.

geneticdiversity

Nucleotide diversity estimates based on the complete sequences of mitochondrial genome in the collared lemming indicate how past climate has structured the genetic component of biodiversity. Lower diversity in regions (green) affected by the northward forest expansion during the Holocene warm climatic events [20] compared to Western Beringia, where there was no forest expansion, suggests a reduction of effective size due to regional range contractions during warming events in the Holocene

 

Conservation of Arctic Flora and Fauna (CAFF)

www.caff.is 

The data can be downloaded freely.

Users are requested to reference it source.

i.e. Arctic Biodiversity Trends 2010.

Lemmings Distribution of Dicrostonys Lemmings in the Arctic

Distribution of Dicrostonyx lemmings in the Arctic.

 

Conservation of Arctic Flora and Fauna (CAFF)

www.caff.is  
The data can be downloaded freely.
Users are requested to reference it source.

ARCTIC FLORA AND FAUNA: Status and Conservation. Documentation. Conservation of Arctic Flora and Fauna Working Group (CAFF).


Mammals Globally threatened species and populations within the Arctic Region

Globally threatened species and populations within the Arctic Region.

 

Conservation of Arctic Flora and Fauna (CAFF)

www.caff.is  
The data can be downloaded freely.
Users are requested to reference it source.

ARCTIC FLORA AND FAUNA: Status and Conservation. Documentation. Conservation of Arctic Flora and Fauna Working Group (CAFF).

Source: Hilton-Taylor 2000.
Lemmings Distribution of Lemmus lemmings in the Arctic

Distribution of Lemmus lemmings in the Arctic.

 

Conservation of Arctic Flora and Fauna (CAFF)
www.caff.is  
The data can be downloaded freely.
Users are requested to reference it source.

ARCTIC FLORA AND FAUNA: Status and Conservation. Documentation. Conservation of Arctic Flora and Fauna Working Group (CAFF).

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