Animalia > Chordata > Mammalia > Soricomorpha > Soricidae > Sorex > Sorex arcticusSorex arcticus (Arctic Shrew; saddle-back shrew; black-backed shrew)Language: French The Arctic shrew (Sorex arcticus), also known as the blackback shrew or saddlebacked shrew, is a medium-sized shrew found in Canada and the northern United States. Separate species status has been proposed for the maritime shrew (Sorex maritimensis) which is found in New Brunswick and Nova Scotia and had been considered to be a subspecies of the Arctic shrew. The tundra shrew (Sorex tundrensis) was formerly considered to be a subspecies of the Arctic shrew. |
Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) ED Score: 7.51 EDGE Score: 2.14 |
| Adult Weight [1] | 8 grams |  | | Diet [2] | Carnivore (Invertebrates), Carnivore (Vertebrates) | | Diet - Invertibrates [2] | 70 % | | Diet - Scavenger [2] | 30 % | | Forages - Ground [2] | 100 % | | | Female Maturity [1] | 1 year | | | Gestation [1] | 17 days | | Litter Size [1] | 7 | | Litters / Year [1] | 1.9 | | Maximum Longevity [3] | 2 years | | Nocturnal [4] | Yes | | Snout to Vent Length [3] | 3.15 inches (8 cm) |
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| Name |
Countries |
Ecozone |
Biome |
Species |
Report |
Climate |
Land
Use |
|
Alberta-British Columbia foothills forests |
Canada |
Nearctic |
Temperate Coniferous Forests |
 |
 |
 |
 |
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Canadian Aspen forests and parklands |
Canada |
Nearctic |
Temperate Grasslands, Savannas, and Shrublands |
|
|
|
|
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Central Canadian Shield forests |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
|
|
|
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Central tall grasslands |
United States |
Nearctic |
Temperate Grasslands, Savannas, and Shrublands |
|
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|
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Eastern Canadian forests |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
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|
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Eastern forest-boreal transition |
Canada, United States |
Nearctic |
Temperate Broadleaf and Mixed Forests |
|
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|
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Gulf of St. Lawrence lowland forests |
Canada |
Nearctic |
Temperate Broadleaf and Mixed Forests |
|
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|
|
|
Interior Yukon-Alaska alpine tundra |
Canada, United States |
Nearctic |
Tundra |
|
|
|
|
|
Mid-Continental Canadian forests |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
|
|
|
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Midwestern Canadian Shield forests |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
|
|
|
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Muskwa-Slave Lake forests |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
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|
|
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New England-Acadian forests |
Canada, United States |
Nearctic |
Temperate Broadleaf and Mixed Forests |
|
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|
|
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Northern Canadian Shield taiga |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
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|
|
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Northern Cordillera forests |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
|
|
|
|
Northern mixed grasslands |
Canada, United States |
Nearctic |
Temperate Grasslands, Savannas, and Shrublands |
|
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|
|
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Northern short grasslands |
Canada, United States |
Nearctic |
Temperate Grasslands, Savannas, and Shrublands |
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Northern tall grasslands |
Canada, United States |
Nearctic |
Temperate Grasslands, Savannas, and Shrublands |
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Northwest Territories taiga |
Canada |
Nearctic |
Boreal Forests/Taiga |
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|
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Ogilvie-MacKenzie alpine tundra |
Canada, United States |
Nearctic |
Tundra |
|
|
|
|
|
Southern Hudson Bay taiga |
Canada |
Nearctic |
Boreal Forests/Taiga |
|
|
|
|
|
Upper Midwest forest-savanna transition |
United States |
Nearctic |
Temperate Broadleaf and Mixed Forests |
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|
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Western Great Lakes forests |
Canada, United States |
Nearctic |
Temperate Broadleaf and Mixed Forests |
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| Name |
IUCN Category |
Area acres |
Location |
Species |
Website |
Climate |
Land Use |
|
Aniakchak National Monument National Preserve |
Ib |
458519 |
Alaska, United States |
|
 |
|
|
|
Arctic National Wildlife Refuge |
Ib |
12402936 |
Alaska, United States |
|
|
|
|
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Bering Land Bridge National Preserve |
Ib |
2823882 |
Alaska, United States |
|
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|
|
|
Bonanza Creek LTER Site Long Term Ecological Research |
|
|
Alaska, United States |
|
|
|
|
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Cedar Creek LTER Site Long Term Ecological Research |
IV |
|
Minnesota, United States |
|
|
|
|
|
Denali Biosphere Reserve |
|
1932364 |
Alaska, United States |
|
|
|
|
|
Elk Island National Park |
II |
47171 |
Alberta, Canada |
|
|
|
|
|
Greenwater Provincial Park |
II |
11019 |
Ontario, Canada |
|
|
|
|
|
Ivvavik National Park |
II |
2382752 |
Yukon, Canada |
|
|
|
|
|
Katunsky Biosphere Reserve |
|
393162 |
Altai, Russia |
|
|
|
|
|
Kouchibouguac National Park |
II |
59161 |
New Brunswick, Canada |
|
|
|
|
|
Polar Bear Provincial Park |
|
5502026 |
Ontario, Canada |
|
|
|
|
|
Prince Albert National Park |
II |
976762 |
Saskatchewan, Canada |
|
|
|
|
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Pukaskwa National Park |
II |
459860 |
Ontario, Canada |
|
|
|
|
|
Riding Mountain Biosphere Reserve |
II |
762028 |
Manitoba, Canada |
|
|
|
|
|
Sokhondinskiy Biosphere Reserve |
Ia |
521363 |
Chita, Russia |
|
|
|
|
|
Tuktut Nogait National Park |
II |
5761538 |
Northwest Territories, Canada |
|
|
|
|
|
Vuntut National Park |
II |
1076795 |
Yukon, Canada |
|
|
|
|
|
Wapusk National Park |
II |
2614324 |
Manitoba, Canada |
|
|
|
|
|
Wood Buffalo National Park |
II |
11038545 |
Alberta, Canada |
|
|
|
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Attributes / relations provided by ♦ 1de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774 ♦ 2Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027 ♦ 3Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109 ♦ 4Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at animaldiversity.org♦ 5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics. ♦ 6International Flea Database♦ 7Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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