Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
genus within thesubfamily Arvicolinae — thelemmings .
Etymologies
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Examples
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Other species, such as the polar bear ( '' Ursus maritimus '' [40]), exhibit little or no evidence of genetic differentiation that might indicate past population fragmentation, and Fedorov et al. [41] inferred that Eurasian true lemmings ( '' Lemmus '' spp.) experienced no effective reduction in population size during recent glacial – interglacial cycles.
Late-Quaternary changes in arctic terrestrial ecosystems, climate, and ultraviolet radiation levels 2009
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Phylogeographic structure and mitochondrial DNA variation in true lemmings ( '' Lemmus '') from the Eurasian Arctic.
Late-Quaternary changes in arctic terrestrial ecosystems, climate, and ultraviolet radiation levels 2009
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Lemming peak densities exceed 200 individuals per hectare in the most productive Lemmus habitats in both Siberia and North America [98] and the standing crop of lemmings may approach 2.6 kilograms (kg) dry weight per hectare.
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There is at least partly supporting evidence for induced chemical defense in the Epirrita – birch system [113] and for overgrazing in the Lemmus – plant system in unproductive tundra habitats [114].
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Lemming abundance is the highest in coastal tundra, especially in moist sedge meadows that are the optimum habitat for Lemmus.
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The diet of Lemmus consists mainly of mosses and graminoids, while Dicrostonyx prefers herbs and dwarf shrubs [99].
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Lemmings have a high metabolic rate, and Lemmus in particular has a low digestive efficiency (about 30%, compared to 50% in other small rodents).
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Phylogeographic structure and mitochondrial DNA variation in true lemmings (Lemmus) from the Eurasian Arctic.
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Seasonal change of the habitat in the Norwegian lemming, Lemmus lemmus.
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New data on the nutrition of Norwegian lemming (Lemmus lemmus).
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