Results 1 to 10 of about 971 (173)
Ultra-light photosensor collars to monitor Arctic lemming activity [PDF]
Animal Biotelemetry, 2022 Background Studying the anti-predatory behavior of mammals represents an important challenge, especially for fossorial small mammals that hide in burrows.
David Bolduc +4 more
doaj +2 more sources
A Historical Review of Our Knowledge of Brown Lemming Population Cycles at Barrow, Alaska: Cycles No More or Never Before [PDF]
AnimalsThe literature for brown lemming (Lemmus trimucronatus) and collared lemming (Dicrostonyx groenlandicus) population cycles was revisited from Barrow, Alaska. This review covered observations and research primarily from 1946 to 1974.
Denver W. Holt
doaj +2 more sources
Population dynamics and demographic history of Eurasian collared lemmings [PDF]
BMC Ecology and Evolution, 2022 Background Ancient DNA studies suggest that Late Pleistocene climatic changes had a significant effect on population dynamics in Arctic species. The Eurasian collared lemming (Dicrostonyx torquatus) is a keystone species in the Arctic ecosystem.
Edana Lord +17 more
doaj +2 more sources
Whole genomes reveal subpopulations and isolation-by-distance patterns in the Norwegian lemming [PDF]
BMC BiologyBackground The Norwegian lemming (Lemmus lemmus) is a small rodent endemic to the Fennoscandian alpine and arctic tundra. The species is known for cyclic population outbreaks and mass movements during peak years.
Isabelle Sofie Feinauer +17 more
doaj +2 more sources
BirdsWe compared Snowy Owl feeding ecology from 15 breeding season studies throughout Nearctic and Palearctic circumpolar regions. We used raw data and information theory to assess the owls’ feeding niche.
Denver W Holt
exaly +3 more sources
A new perspective on the taxonomy and systematics of Arvicolinae (Gray, 1821) and a new time-calibrated phylogeny for the clade [PDF]
PeerJBackground Arvicoline rodents are one of the most speciose and rapidly evolving mammalian lineages. Fossil arvicolines are also among the most common vertebrate fossils found in sites of Pliocene and Pleistocene age in Eurasia and North America. However,
Charles B. Withnell, Simon G. Scarpetta
doaj +3 more sources
Lemming and Vole Cycles: A New Intrinsic Model [PDF]
Ecology and EvolutionIt is 100 years since the first paper described the multiannual cycles in Arctic rodents and lagomorphs. The mechanisms driving population cycles in animals like lemmings and voles are complex, often attributed to extrinsic factors, such as food ...
Elizabeth A. Levay +4 more
doaj +2 more sources
Response of vegetation and carbon fluxes to brown lemming herbivory in northern Alaska [PDF]
Biogeosciences, 2022 The warming of the Arctic is affecting the carbon cycle of tundra ecosystems. Most research on carbon fluxes from Arctic tundra ecosystems has focused on abiotic environmental controls (e.g., temperature, rainfall, or radiation).
J. Plein +8 more
doaj +1 more source
Snow hardness impacts intranivean locomotion of arctic small mammals
Ecosphere, 2021 Fossorial locomotion is often considered as the most energetically costly of all terrestrial locomotion. Small arctic rodents, such as lemmings, dig tunnels not only in the soil but also through the snowpack, which is present for over 8 months of the ...
Mathilde Poirier +4 more
doaj +1 more source
Arctic Science, 2022 The quality of wintering habitats, such as depth of snow cover, plays a key role in sustaining population dynamics of Arctic lemmings. However, few studies so far investigated habitat use during the Arctic winter.
Xaver von Beckerath +6 more
doaj +1 more source