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Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic

by Aanes, Ronny , Stein, Audun , Yoccoz, Nigel G. , Sæther, Bernt-Erik , Hansen, Brage B. , Pedersen, Åshild Ø. , Grøtan, Vidar , Fuglei, Eva , Ims, Rolf A.

in Animal and plant ecology / Animal populations / Animal, plant and microbial ecology / Animals / Arctic environments / Arctic region / Arctic Regions / Arvicolinae - physiology / Biological and medical sciences / climate / Climate Change / Climate models / Climatology. Bioclimatology. Climate change / Community Relations / Demography / Earth, ocean, space / Environmental impact / Exact sciences and technology / External geophysics / Extreme weather / Fluctuations / forage / Foxes - physiology / Fundamental and applied biological sciences. Psychology / Galliformes - physiology / Herbivores / Herbivory / ice / Ice Cover / Lagopus / Meteorology / Norway / Overwintering / Population Dynamics / Population growth rate / Rain / Rainfall / Reindeer / Reindeer - physiology / Snow / Species / Synecology / Terrestrial ecosystems / Vertebrates / Voles / Vulpes lagopus / Weather / Winter

2013

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Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic

by Aanes, Ronny , Stein, Audun , Yoccoz, Nigel G. , Sæther, Bernt-Erik , Hansen, Brage B. , Pedersen, Åshild Ø. , Grøtan, Vidar , Fuglei, Eva , Ims, Rolf A.

2013

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Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic

by Aanes, Ronny , Stein, Audun , Yoccoz, Nigel G. , Sæther, Bernt-Erik , Hansen, Brage B. , Pedersen, Åshild Ø. , Grøtan, Vidar , Fuglei, Eva , Ims, Rolf A.

2013

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Journal Article

Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic

Aanes, Ronny,

Stein, Audun,

Yoccoz, Nigel G.,

Sæther, Bernt-Erik,

Hansen, Brage B.,

Pedersen, Åshild Ø.,

Grøtan, Vidar,

Fuglei, Eva,

Ims, Rolf A.

2013

Overview

Recently accumulated evidence has documented a climate impact on the demography and dynamics of single species, yet the impact at the community level is poorly understood. Here, we show that in Svalbard in the high Arctic, extreme weather events synchronize population fluctuations across an entire community of resident vertebrate herbivores and cause lagged correlations with the secondary consumer, the arctic fox. This synchronization is mainly driven by heavy rain on snow that encapsulates the vegetation in ice and blocks winter forage availability for herbivores. Thus, indirect and bottom-up climate forcing drives the population dynamics across all overwintering vertebrates. Icing is predicted to become more frequent in the circumpolar Arctic and may therefore strongly affect terrestrial ecosystem characteristics.

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Publisher

American Association for the Advancement of Science,The American Association for the Advancement of Science

Subject

Animal and plant ecology

/ Animal populations

/ Animal, plant and microbial ecology

/ Animals

/ Arctic environments

/ Arctic region

/ Arctic Regions