Animalia > Chordata > Mammalia > Rodentia > Muroidea > Cricetidae > Microtus > Microtus richardsoni
 

Microtus richardsoni (water vole)

Synonyms: Arvicola macropus; Arvicola richardsoni; Aulacomys arvicoloides; Microtus principalis; Microtus richardsoni myllodontus

Wikipedia Abstract

The water vole (Microtus richardsoni) is the largest North American vole. It is found in the northwestern United States and southern parts of western Canada. This animal has been historically considered a member of genus Arvicola, but molecular evidence demonstrates that it is more closely related to North American Microtus species.
View Wikipedia Record: Microtus richardsoni

EDGE Analysis

Uniqueness Scale: Similiar (0) 
3
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
21
 Unique & Vulnerable (100)
ED Score: 7.32
EDGE Score: 2.12

Attributes

Adult Weight [2]  106 grams
Birth Weight [3]  5 grams
Female Weight [2]  99 grams
Male Weight [2]  114 grams
Weight Dimorphism [2]  15.2 %
Diet [4]  Granivore, Herbivore
Diet - Plants [4]  80 %
Diet - Seeds [4]  20 %
Forages - Ground [4]  100 %
Gestation [3]  22 days
Litter Size [3]  6
Litters / Year [3]  2
Water Biome [1]  Lakes and Ponds, Rivers and Streams
Weaning [3]  21 days

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Alberta Mountain forests Canada Nearctic Temperate Coniferous Forests
Blue Mountains forests United States Nearctic Temperate Coniferous Forests
British Columbia mainland coastal forests Canada, United States Nearctic Temperate Coniferous Forests
Cascade Mountains leeward forests Canada, United States Nearctic Temperate Coniferous Forests
Central and Southern Cascades forests United States Nearctic Temperate Coniferous Forests
Colorado Plateau shrublands United States Nearctic Deserts and Xeric Shrublands
Eastern Cascades forests United States Nearctic Temperate Coniferous Forests
Great Basin shrub steppe United States Nearctic Deserts and Xeric Shrublands
Montana Valley and Foothill grasslands Canada, United States Nearctic Temperate Grasslands, Savannas, and Shrublands
North Central Rockies forests Canada, United States Nearctic Temperate Coniferous Forests
Okanagan dry forests Canada, United States Nearctic Temperate Coniferous Forests
Palouse grasslands United States Nearctic Temperate Grasslands, Savannas, and Shrublands
Puget lowland forests United States Nearctic Temperate Coniferous Forests
Snake-Columbia shrub steppe United States Nearctic Deserts and Xeric Shrublands
South Central Rockies forests United States Nearctic Temperate Coniferous Forests
Wasatch and Uinta montane forests United States Nearctic Temperate Coniferous Forests
Willamette Valley forests United States Nearctic Temperate Broadleaf and Mixed Forests
Wyoming Basin shrub steppe United States Nearctic Deserts and Xeric Shrublands

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Banff National Park II 1690912 Alberta, Canada
Glacier National Park II 953799 Montana, United States
Grand Teton National Park II 231724 Wyoming, United States
H.J. Andrews Biosphere Reserve 15815 Oregon, United States
Jasper National Park II 2776809 Alberta, Canada
Mount Rainier National Park II 235186 Washington, United States
Mount Revelstoke National Park Ia 18 British Columbia, Canada
Waterton Biosphere Reserve II 121459 Alberta, Canada
Yoho National Park II 317576 British Columbia, Canada

Prey / Diet

Erythronium grandiflorum (yellow avalanche-lily)[2]
Salix barrattiana (Barratt willow)[2]
Xerophyllum tenax (Indian Basket Grass)[2]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Marmota caligata (hoary marmot)1
Marmota vancouverensis (Vancouver marmot)1
Oreamnos americanus (mountain goat)1
Tamias ruficaudus (red-tailed chipmunk)1
Thomomys talpoides (northern pocket gopher)1

Predators

Esox lucius (Jack)[5]
Martes americana (American Marten)[2]
Mustela erminea (Ermine)[2]
Strix nebulosa (Great Grey Owl)[5]

Consumers

Parasitized by 
Catallagia sculleni chamberlini[6]
Hystrichopsylla dippiei dippiei[6]
Megabothris abantis[6]
Opisodasys keeni[6]
Peromyscopsylla selenis[6]
Stenoponia americana (American mouse flea)[6]

Range Map

North America;

Photos

Citations

Attributes / relations provided by
1Myers, 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
2Microtus richardsoni, Daniel R. Ludwig, Mammalian Species No. 223, pp. 1-6 (1984)
3de 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
4Hamish 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
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
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access