Predation Risk Does Not Delay Breeding but Reduces Nest Survival in High‐Arctic Shorebirds [PDF]
Ecol EvolWe assessed the impact of arctic foxes' predation pressure on two sympatric sandpiper species. Fox activity influenced the breeding ecology of both sandpipers, with earlier nest initiations and lower nest survival rates in areas of high fox activity. ABSTRACT Understanding predator–prey interactions is crucial for correctly answering many fundamental ...
Bonnefond L +8 more
europepmc +2 more sources
An Improved Bionic Artificial Lemming Algorithm for Global Optimization and Cloud Task-Scheduling Problems [PDF]
BiomimeticsThe intelligent optimization algorithm has become a key tool in complex and intertwined engineering and science fields. However, with the increasing complexity of the problem and the rapid expansion of the data scale, the performance of the algorithm has
Yuyong Tan, Jianfeng Wang, Bin Wang
doaj +2 more sources
Can Herbivore Feeding Preferences Reinforce the Female‐Biased Sex Ratio in an Alpine Willow? [PDF]
Ecol EvolSex‐biased herbivory can vary among co‐occurring herbivores and across the season. Sequential herbivory by species with different feeding preferences may influence the population dynamics of dioecious plants, particularly if early‐season herbivory alters plant traits that affect subsequent foraging decisions.
Barrio I, Bueno C, Hik D.
europepmc +2 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
Optical design challenges of subnivean camera trapping under extreme Arctic conditions
Arctic Science, 2022 Camera trapping is widely used in different ecological studies and is particularly important for remote locations and extreme environments. However, the application of camera traps in Arctic regions remains very limited.
Anastasiia Pusenkova +5 more
doaj +1 more source
The influence of weather and lemmings on spatiotemporal variation in the abundance of multiple avian guilds in the arctic. [PDF]
PLoS ONE, 2014 Climate change is occurring more rapidly in the Arctic than other places in the world, which is likely to alter the distribution and abundance of migratory birds breeding there.
Barry G Robinson +2 more
doaj +1 more source
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
Abundance, predation, and habitat associations of lemming winter nests in northern Sweden
Ecosphere, 2022 Spatially synchronous fluctuations of animal populations have profound ecological consequences, especially in northern latitudes. Spatially coupled fluctuations are often seen in small rodent populations, albeit with local and regional variations.
Jan Vigués +5 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
Determinants of lemming outbreaks [PDF]
Proceedings of the National Academy of Sciences, 2011 Population outbreaks in tundra rodents have intrigued scientists for a century as a result of their spectacular appearances and their general lessons in ecology. One outstanding question that has led to competing hypotheses is why sympatric lemmings and voles differ in regularity and shape of their outbreaks.
Rolf A, Ims +2 more
openaire +2 more sources