At the close of the Fourth International Polar Year, we take stock of the ecological consequences
of recent climate change in the Arctic, focusing on effects at population, community, and …

… According to their model, a 2 o C increase in summer temperature should lead to an
expansion in goose distribution and ultimately an enhanced population growth (but also see …

Since the last Arctic Monitoring and Assessment Programme (AMAP) effort to review biological
effects of mercury (Hg) on Arctic biota in 2011 and 2018, there has been a considerable …

The collared lemming in the high-Arctic tundra in Greenland is preyed upon by four species
of predators that show marked differences in the numbers of lemmings each consumes and …

The high Arctic has the world's simplest terrestrial vertebrate predator–prey community, with
the collared lemming being the single main prey of four predators, the snowy owl, the Arctic …

The high‐arctic tundra ecosystem has the world's simplest vertebrate predator–prey
community, with only four predators preying upon one rodent species, the collared lemming (…

We provide the first comparative multispecies analysis of spatial genetic structure and diversity
in the circumpolar Arctic using a common strategy for sampling and genetic analyses. We …

Alpine and arctic lemming populations appear to be highly sensitive to climate change, and
when faced with warmer and shorter winters, their well-known high-amplitude population …

The behavioural rhythms of organisms are thought to be under strong selection, influenced
by the rhythmicity of the environment 1 , 2 , 3 , 4 . Such behavioural rhythms are well studied …

The conservation of migratory marine species, including pelagic seabirds, is challenging
because their movements span vast distances frequently beyond national jurisdictions. Here, …