Cinereus Shrew

Sorex cinereus

General Status Rank: 
Secure
ELCODE: 
AMABA01010
Common Name: 
Cinereus Shrew
Scientific Name: 
Sorex cinereus
Synonyms: 
Masked Shrew
Naming References: 
R169
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Taxonomy
Group: 
Mammal (Terrestrial Mammal)
Kingdom: 
Animalia
Phylum: 
Chordata
Class: 
Mammalia
Order: 
Eulipotyphla (Soricomorpha)
Family: 
Soricidae
References: 
B114
R169
General Biology

Female Age at Maturity

4 months, but most breed at 22 months.
References: 
B001

Longevity

Up to 23 months
References: 
B001

Economic/Human Considerations

Insectivores
References: 
B001
Habitat
Various habitat types, forests, grassland, weed patches, from wet to quite dry.
References: 
SC1
Distribution

Ecozones

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

Distribution

71% of the NWT. Small Mammal Survey, caught in Fort Liard, Fort Providence, Fort Smith, Gordon Lake (1999).
Score: 
G = 2
References: 
B001
SC1

Number of Occurrences

Probably.
Score: 
E = >
References: 
H126

Area of Occupancy

Stable?
Score: 
-
Population

Population Size

More than 10,000 to millions?
Score: 
FH =
References: 
H126-05

Density

1 to 9 per acre
Threats

Threats

Score: 
C = M
References: 
B001

Intrinsic Vulnerability

Score: 
-
References: 
B001
General Status Rank
Rank: 
Secure
Status Rank Description: 
Little information but secure due to very large distribution and inferred numbers.
S Rank: 
S5
Decision Process Description: 
Drafted using information and comments from M. Bradley. 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 15, 2024

References

Age Of Maturity

  • 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

Habitat

  • van Zyll de Jong CG (1983) Handbook of Canadian Mammals - Marsupials and Insectivores. National Museum of Natural Sciences RWED Library Call#QL721.z9 - SC1 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

Naming

  • Wilson, Don E. and Reeder, DeeAnn M. (2005) Mammal Species of the World. A Taxonomic and Geographic Reference. Johns Hopkins University Press 3rd ed 2142 pages - R169 Return

NWT Known Subspecies

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

Number of Occurrences

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

Population Size

Suzanne Carriere (2005) Pers. Comm.. - H126-05 Return

Range Extent

  • Banfield AWF (1974) The Mammals of Canada. University of Toronto Press RWED Library Call #QL721.B3 - B001 Return
  • van Zyll de Jong CG (1983) Handbook of Canadian Mammals - Marsupials and Insectivores. National Museum of Natural Sciences RWED Library Call#QL721.z9 - SC1 Return

Taxonomy

  • van Zyll de Jong CG (1983) Handbook of Canadian Mammals - 1 Marsupials and Insectivores. National Museum of Natural Sciences First edition RWED Library Call #QL721.z9 - B114 Return
  • Wilson, Don E. and Reeder, DeeAnn M. (2005) Mammal Species of the World. A Taxonomic and Geographic Reference. Johns Hopkins University Press 3rd ed 2142 pages - R169 Return

Threats

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