Richardson's Collared Lemming

Dicrostonyx richardsoni

General Status Rank: 
Undetermined
ELCODE: 
AMAFF18060
Common Name: 
Richardson's Collared Lemming
Scientific Name: 
Dicrostonyx richardsoni
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Taxonomy
Group: 
Mammal (Terrestrial Mammal)
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Mammalia
Order: 
Rodentia
Family: 
Cricetidae
References: 
B001
General Biology

Female Age at Maturity

27 to 30 days
References: 
B001

Longevity

Around 12 months
References: 
B001

Economic/Human Considerations

Food source for fur bearing animals.
References: 
B001
Habitat
Arctic tundra zone
References: 
B001
Distribution

Ecozones

Arctic Cordillera, Northern Arctic, Southern Arctic, Taiga Plains, Taiga Shield
References: 
B001
BSC2

Distribution

Less than 5% of the NWT.
Score: 
F = 2
References: 
B001
BSC3

Number of Occurrences

Probably more than 100.
Score: 
DE =
References: 
H126

Area of Occupancy

Stable?
Score: 
-
References: 
B001
Population

Population Size

Probably more than 10,000.
Score: 
F = 1
References: 
H126

Density

0.6 to 400 per hectare.
Trends

Trends

Dramatic fluctuations (peaks every 2 to 5 years).
Score: 
G = R
References: 
B001
Threats

Threats

References: 
B001

Intrinsic Vulnerability

Score: 
-
References: 
B001
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
Very small distribution at western edge; population and number of occurrences cannot be extrapolated from distribution and / or density.
S Rank: 
SU
Decision Process Description: 
Drafted by S. Carriere. Reviewed in 2004, no changes in status. Reviewed in 2010, no change. Reviewed in 2015, no change. Reviewed in 2020, no change.
Last Updated: 
February 16, 2024

References

Age Of Maturity

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Area of Occupancy

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Economic Status

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Ecozones

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return
  • Wilson, Don. E and Ruff, S. (eds) (1999) The Smithsonian book of North American mammals. UBC Press 750 pp. RWED Library Call#QL715.S64 - BSC2 Return

Habitat

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Intrinsic Vulnerability

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Longevity

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

NWT Known Subspecies

Wilson, Don. E and Ruff, S. (eds) (1999) The Smithsonian book of North American mammals. UBC Press 750 pp. RWED Library Call#QL715.S64 - BSC2 Return
,
Wilson, Don. E and Ruff, S. (eds) (1993) Mammal species of the World - a taxonomic and geographic reference. Smithsonian Institution Press 2nd edition Pages photocopied - in Database reference file - BSC3 Return

Number of Occurrences

  • Carrière, S. (2000) Pers. communication. Ecosystem Management Biologist; RWED - H126 Return

Population Size

Carrière, S. (2000) Pers. communication. Ecosystem Management Biologist; RWED - H126 Return

Range Extent

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return
  • Wilson, Don. E and Ruff, S. (eds) (1993) Mammal species of the World - a taxonomic and geographic reference. Smithsonian Institution Press 2nd edition Pages photocopied - in Database reference file - BSC3 Return

Short Term Trends

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Taxonomy

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return

Threats

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return