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Dicrostonyx groenlandicus

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA MAMMALIA RODENTIA CRICETIDAE

Scientific Name: Dicrostonyx groenlandicus
Species Authority: (Traill, 1823)
Common Name/s:
English Neartic Collared Lemming, Northern Collared Lemming
Synonym/s:
Dicrostonyx kilangmiutak Anderson & Rand, 1945
Dicrostonyx rubricatus (Richardson, 1889)
Taxonomic Notes: Dicrostonyx taxonomy is complex and not well resolved. The complex was regarded as part a single circumpolar species, D. torquatus, until the 1970s when karyological and breeding studies indicated the possible existence of a superspecies complex among North American Dicrostonyx (Rausch and Rausch 1972, Rausch 1977; see also Krohne 1982). Former subspecies occurring in western Canada and Alaska were recognized as separate species based mainly on karyotypes (Rausch and Rausch 1972; Rausch 1977; Krohne 1982; Honacki et al. 1982; Jones et al. 1986, 1992). Musser and Carleton (in Wilson and Reeder 2005) reviewed these and subsequent studies and recognized eight Dicrostonyx species, six of which (groenlandicus, hudsonius, nelsoni, nunatakensis, richardsoni, and unalascensis) occur in North America; and this is the taxonomy adopted here. Baker et al. (2003) recognized D. exsul, D. kilangmiutak, and D. rubricatus as species, but Musser and Carleton recognized exsul as a synonym of D. nelsoni, and kilangmiutak and rubricatus were treated as synonyms of D. groenlandicus.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor/s: Linzey, A.V. & NatureServe (Hammerson, G.)
Reviewer/s: Amori, G. (Small Nonvolant Mammal Red List Authority) & Chanson, J. (Global Mammal Assessment Team)
Justification:
Listed as Least Concern because it is extremely widespread, it is considered common, there are no major threats, and its population is not declining fast enough to qualify for listing in a more threatened category.

Geographic Range [top]

Range Description: This species is found in northern Greenland and Queen Elizabeth Islands, islands in the District of Franklin, and Southampton Island; and northern North America above the tree line, from the northeastern District of Keewatin, Canada, to northern Alaska, United States (Musser and Carleton, in Wilson and Reeder 2005).
Countries:
Native:
Canada (Northwest Territories, Nunavut, Yukon); Greenland; United States (Alaska)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Populations of this species undergo wide fluctuations, but it is generally considered common.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: It inhabits Arctic tundra in high, dry, rocky areas in summer and lower meadows in winter. It occupies runways beneath the snow and tunnel systems down to permafrost level.
Systems: Terrestrial

Threats [top]

Major Threat(s): There are no known threats to this species.

Conservation Actions [top]

Conservation Actions: The range of this species is not particularly impacted at present, so no conservation measures are needed at this time. There are many protected areas within the range of this species in North America.
Citation: Linzey, A.V. & NatureServe (Hammerson, G.) 2008. Dicrostonyx groenlandicus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 24 April 2014.
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