Search Results - "IMS, ROLF A"

Climate Events Synchronize the Dynamics of a Resident Vertebrate Community in the High Arctic by Hansen, Brage B., Grøtan, Vidar, Aanes, Ronny, Sæther, Bernt-Erik, Stein, Audun, Fuglei, Eva, Ims, Rolf A., Yoccoz, Nigel G., Pedersen, Åshild Ø.

“…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…”
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Europe-Wide Dampening of Population Cycles in Keystone Herbivores by Cornulier, Thomas, Yoccoz, Nigel G., Bretagnolle, Vincent, Brommer, Jon E., Butet, Alain, Ecke, Frauke, Elston, David A., Framstad, Erik, Henttonen, Heikki, Hörnfeldt, Birger, Huitu, Otso, Imholt, Christian, Ims, Rolf A., Jacob, Jens, Jędrzejewska, Bogumiła, Millon, Alexandre, Petty, Steve J., Pietiäinen, Hannu, Tkadlec, Emil, Zub, Karol, Lambin, Xavier

“…Suggestions of collapse in small herbivore cycles since the 1980s have raised concerns about the loss of essential ecosystem functions. Whether such phenomena…”
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Ecosystem-based monitoring in the age of rapid climate change and new technologies by Ims, Rolf A, Yoccoz, Nigel G

“…•Rapid climate change challenges how we monitor and manage ecosystems.•Ecosystem-based monitoring is guided by models that are iteratively/adaptively improved…”
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Determinants of lemming outbreaks by Ims, Rolf A, Yoccoz, Nigel G, Killengreen, Siw T

“…Population outbreaks in tundra rodents have intrigued scientists for a century as a result of their spectacular appearances and their general lessons in…”
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Iterative model predictions for wildlife populations impacted by rapid climate change by Marolla, Filippo, Henden, John‐André, Fuglei, Eva, Pedersen, Åshild Ø., Itkin, Mikhail, Ims, Rolf A.

“…To improve understanding and management of the consequences of current rapid environmental change, ecologists advocate using long‐term monitoring data series…”
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Arctic Small Rodents Have Diverse Diets and Flexible Food Selection by Soininen, Eeva M, Ravolainen, Virve T, Bråthen, Kari Anne, Yoccoz, Nigel G, Gielly, Ludovic, Ims, Rolf A

“…The ecology of small rodent food selection is poorly understood, as mammalian herbivore food selection theory has mainly been developed by studying ungulates…”
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Accounting for food web dynamics when assessing the impact of mesopredator control on declining prey populations by Henden, John‐André, Ehrich, Dorothee, Soininen, Eeva M., Ims, Rolf A., Sales, Lilian

“…Increasing populations of mesopredators are suspected to cause declines in vulnerable wildlife to the extent that mesopredator decimation actions (culling)…”
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Is the diet cyclic phase‐dependent in boreal vole populations? by Neby, Magne, Ims, Rolf A., Kamenova, Stefaniya, Devineau, Olivier, Soininen, Eeva M.

“…Herbivorous rodents in boreal, alpine and arctic ecosystems are renowned for their multi‐annual population cycles. Researchers have hypothesised that these…”
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New views on how population-intrinsic and community-extrinsic processes interact during the vole population cycles by Andreassen, Harry P., Glorvigen, Petter, Rémy, Alice, Ims, Rolf A.

“…Based on evidence from a series of recent studies linking behaviour to demography in experimental vole populations we propose how intrinsic and extrinsic…”
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Stability of space use in Svalbard coastal female polar bears: intra-individual variability and influence of kinship by Brun, Clément, Blanchet, Marie-Anne, Ims, Rolf A., Aars, Jon

“…Philopatry influences animal distribution and can lead to a kinship-based spatial structure, where proximity and relatedness are tightly linked. In the Barents…”
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Circumpolar status of Arctic ptarmigan: Population dynamics and trends by Fuglei, Eva, Henden, John-André, Callahan, Chris T., Gilg, Olivier, Hansen, Jannik, Ims, Rolf A., Isaev, Arkady P., Lang, Johannes, McIntyre, Carol L., Merizon, Richard A., Mineev, Oleg Y., Mineev, Yuri N., Mossop, Dave, Nielsen, Olafur K., Nilsen, Erlend B., Pedersen, Åshild Ønvik, Schmidt, Niels Martin, Sittler, Benoît, Willebrand, Maria Hørnell, Martin, Kathy

“…Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their…”
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Complementary impacts of small rodents and semi‐domesticated ungulates limit tall shrub expansion in the tundra by Ravolainen, Virve T, Bråthen, Kari Anne, Yoccoz, Nigel G, Nguyen, Julie K, Ims, Rolf A, Pärt, Tomas

“…While shrubs appear to be expanding in Arctic tundra due to climatic warming, patches of tall shrubs in riparian habitats are most likely to colonize new…”
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Issues of under-representation in quantitative DNA metabarcoding weaken the inference about diet of the tundra vole Microtus oeconomus by Neby, Magne, Kamenova, Stefaniya, Devineau, Olivier, Ims, Rolf A, Soininen, Eeva M

“…During the last decade, methods based on high-throughput sequencing such as DNA metabarcoding have opened up for a range of new questions in animal dietary…”
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Disturbance Mapping in Arctic Tundra Improved by a Planning Workflow for Drone Studies: Advancing Tools for Future Ecosystem Monitoring by Eischeid, Isabell, Soininen, Eeva M., Assmann, Jakob J., Ims, Rolf A., Madsen, Jesper, Pedersen, Åshild Ø., Pirotti, Francesco, Yoccoz, Nigel G., Ravolainen, Virve T.

“…The Arctic is under great pressure due to climate change. Drones are increasingly used as a tool in ecology and may be especially valuable in rapidly changing…”
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Homage to Hersteinsson and Macdonald: climate warming and resource subsidies cause red fox range expansion and Arctic fox decline by Elmhagen, Bodil, Berteaux, Dominique, Burgess, Robert M., Ehrich, Dorothee, Gallant, Daniel, Henttonen, Heikki, Ims, Rolf A., Killengreen, Siw T., Niemimaa, Jukka, Norén, Karin, Ollila, Tuomo, Rodnikova, Anna, Sokolov, Aleksandr A., Sokolova, Natasha A., Stickney, Alice A., Angerbjörn, Anders

“…Climate change can have a marked effect on the distribution and abundance of some species, as well as their interspecific interactions. In 1992, before…”
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Analysing diet of small herbivores: the efficiency of DNA barcoding coupled with high-throughput pyrosequencing for deciphering the composition of complex plant mixtures by Soininen, Eeva M, Valentini, Alice, Coissac, Eric, Miquel, Christian, Gielly, Ludovic, Brochmann, Christian, Brysting, Anne K, Sønstebø, Jørn H, Ims, Rolf A, Yoccoz, Nigel G, Taberlet, Pierre

“…In order to understand the role of herbivores in trophic webs, it is essential to know what they feed on. Diet analysis is, however, a challenge in many small…”
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Rough-legged buzzards, Arctic foxes and red foxes in a tundra ecosystem without rodents by Pokrovsky, Ivan, Ehrich, Dorothée, Ims, Rolf A, Kondratyev, Alexander V, Kruckenberg, Helmut, Kulikova, Olga, Mihnevich, Julia, Pokrovskaya, Liya, Shienok, Alexander

“…Small rodents with multi-annual population cycles strongly influence the dynamics of food webs, and in particular predator-prey interactions, across most of…”
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Phenology and cover of plant growth forms predict herbivore habitat selection in a high latitude ecosystem by Iversen, Marianne, Fauchald, Per, Langeland, Knut, Ims, Rolf A, Yoccoz, Nigel G, Bråthen, Kari Anne

“…The spatial and temporal distribution of forage quality is among the most central factors affecting herbivore habitat selection. Yet, for high latitude areas,…”
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Induced Shift in Ecosystem Productivity? Extensive Scale Effects of Abundant Large Herbivores by Bråthen, Kari Anne, Ims, Rolf A, Yoccoz, Nigel G, Fauchald, Per, Tveraa, Torkild, Hausner, Vera H

“…Abundant large herbivores can strongly alter vegetation composition, shifting the ecosystem into a lasting state of changed productivity. Previous studies of…”
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Effects of changing permafrost and snow conditions on tundra wildlife: critical places and times by Berteaux, Dominique, Gauthier, Gilles, Domine, Florent, Ims, Rolf A., Lamoureux, Scott F., Lévesque, Esther, Yoccoz, Nigel

“…The change of water phase around 0 °C has considerable impacts on wildlife ecology because liquid and solid water strongly differ in their insulating…”
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