Results 31 to 40 of about 971 (173)
The triangulation between Arctic birds, Arctic foxes and Arctic lemmings
Frontiers in Ecology and EvolutionMany studies have suggested that Arctic predators preying on lemmings, especially the Arctic fox, take advantage of the high prey densities during peak years, but have to switch to alternative prey during years of low lemming density, thereby forcing ...
Anders Angerbjörn +2 more
doaj +1 more source
Molecular sexing of brown lemming remains
Arctic ScienceAccurate sex identification of prey remains can provide valuable insights into selective predation, but field studies are often constrained by degraded or digested material.
Camille Gaudreau-R. +6 more
doaj +1 more source
BMC Zoology, 2021 Background Rodents are thought to be produced their human-audible calls (AUDs, below 20 kHz) with phonation mechanism based on vibration of the vocal folds, whereas their ultrasonic vocalizations (USVs, over 20 kHz) are produced with aerodynamic whistle ...
Ilya A. Volodin +3 more
doaj +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Greenhouse gas (GHG) emissions from freshwater ecosystems contribute significantly to global carbon budgets, yet they remain poorly constrained due to limited high‐frequency measurements. We tested a low‐cost, high‐frequency GHG measurement system in a long‐term mesocosm experiment in Lemming, Denmark, over a 7‐month period, focusing on CO2 ...
Tuba Bucak +6 more
wiley +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
Den attendance by Arctic foxes experiencing 10 years of increasing tourism
Wildlife Biology, EarlyView.Wildlife tourism is a growing industry, and an increasing number of people seek to observe and interact with wild animals in their natural surroundings. In Iceland, the native Arctic fox Vulpes lagopus is widespread and has been under heavy hunting pressure for centuries.
Ester Rut Unnsteinsdóttir +2 more
wiley +1 more source
Journal of the Royal Anthropological Institute, EarlyView.Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello +2 more
wiley +1 more source
Voles, lemmings and caribou - population cycles revisited?
Rangifer, 2003 Although we may be confident that many caribou populations fluctuate, we have not made much progress in linking patterns of fluctuations with their underlying processes.
Anne Gunn
doaj +1 more source
Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe
Archaeometry, EarlyView.ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski +16 more
wiley +1 more source
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