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Cyclic Dynamics in a Simple Vertebrate Predator-Prey Community
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 in the dependence ofExpand
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Climate change and cyclic predator–prey population dynamics in the high Arctic
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 fox, theExpand
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RESPONSE OF STOATS (MUSTELA ERMINEA) TO A FLUCTUATING LEMMING (DICROSTONYXGROENLANDICUS) POPULATION IN NORTH EAST GREENLAND : PRELIMINARY RESULTS FRO M A LONG-TERM STUDY
Interactions between lemmings and stoats were documented over 6 years through system atic and comprehensive surveys of lemming winter nests in a 1 000 ha study area located in North East Greenland.Expand
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Climate change and the increasing impact of polar bears on bird populations
The Arctic is becoming warmer at a high rate, and contractions in the extent of sea ice are currently changing the habitats of marine top-predators dependent on ice. Polar bears (Ursus maritimus)Expand
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Response of an arctic predator guild to collapsing lemming cycles
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 cycles may collapse.Expand
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Post-breeding migration of four Long-tailed Skuas (Stercorarius longicaudus) from North and East Greenland to West Africa
The Long-tailed Skua (Stercorarius longicaudus) is a specialist predator of lemmings during the summer and hence an important component of the tundra ecosystems, but most of its life cycle takesExpand
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Trans-Equatorial Migration Routes, Staging Sites and Wintering Areas of a High-Arctic Avian Predator: The Long-tailed Skua (Stercorarius longicaudus)
The Long-tailed Skua, a small (<300 g) Arctic-breeding predator and seabird, is a functionally very important component of the Arctic vertebrate communities in summer, but little is known about itsExpand
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Effects of geolocators on hatching success, return rates, breeding movements, and change in body mass in 16 species of Arctic-breeding shorebirds
BackgroundGeolocators are useful for tracking movements of long-distance migrants, but potential negative effects on birds have not been well studied. We tested for effects of geolocators (0.8–2.0 gExpand
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Harmonizing circumpolar monitoring of Arctic fox: benefits, opportunities, challenges and recommendations
ABSTRACT The biodiversity working group of the Arctic Council has developed pan-Arctic biodiversity monitoring plans to improve our ability to detect, understand and report on long-term change inExpand
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Circumpolar status of Arctic ptarmigan: Population dynamics and trends
Rock ptarmigan ( Lagopus muta ) and willow ptarmigan ( L. lagopus ) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across theirExpand
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