Microtus

Small mammals also include a number of endemic subspecies such as Microtus nivalis abulensis.

Iberian conifer forests 2007

Thus, the dynamics and assemblages of vertebrate predators in arctic tundra are almost entirely based on lemmings and other small rodent species (Microtus spp. and Clethrionomys spp. [77]), while lemmings and small rodents consume more plant biomass than other herbivores.

Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term 2009

Thus, the dynamics and assemblages of vertebrate predators in arctic tundra are almost entirely based on lemmings and other small rodent species (Microtus spp. and Clethrionomys spp.), while lemmings and small rodents consume more plant biomass than other herbivores.

Arctic environments north of the treeline 2009

Winters with freezing rain were associated with severe population crashes both in one reindeer population (although the natural dynamics of an introduced herd may have contributed to this) and in an introduced population of sibling voles ( '' Microtus rossiaemeridionalis ''; Fig. 7.11).

Phenotypic responses of arctic species to changes in climate and ultraviolet-B radiation 2009

Moreover, the severe decline of the Arctic fox and the snowy owl in Fennoscandia, both of which prey on Microtus voles and lemmings in mountain and tundra habitats, may be due to lower peak abundances of small mammal prey species in their habitats [141].

Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term 2009

Molecular and morphological evidence for multiple species within Paranoplocephala omphalodes (Hermann, 1783) (Cestoda: Anoplocephalidae) in Microtus-voles (Arvicolinae).

Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term 2009

Arctic rodents, such as the insular vole (Microtus abbreviatus) of the Alaskan and Canadian Arctic, avoid the coldest conditions by living within or under the snow [10].

Conservation of arctic species 2009

The Norway lemming and Microtus voles also have lower peak abundances, and the small rodent community is currently dominated by the relatively more stable red-backed vole (Clethrionomys rutilus).

Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term 2009

Small mammals such as shrews (Sorex spp.), voles (Microtus, Clethrionomys spp.), and lemmings with relatively large heat losses due to a high surface-to-volume ratio stay in the subnivean space (a cavity below the snow) where they are protected from low temperatures during the winter.

General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels 2009

Voles (Microtus and Clethrionomys spp.) are likely to become more abundant than lemmings in some low-arctic tundra habitats and forest tundra [96].

Effects of changes in climate and UV radiation levels on structure of arctic ecosystems in the short and long term 2009