Search Results - "Oksanen, Tarja"

The paradox of searching efficiency or why are violent population cycles so uncommon in terrestrial ecosystem by Oksanen, Lauri, Vuorinen, Katariina E. M., Oksanen, Tarja

“…The searching efficiency of predators depends on the balance between the adaptations of the predator and the counter‐adaptations of the prey. In this…”
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Why don't all species overexploit? by Vuorinen, Katariina E. M., Oksanen, Tarja, Oksanen, Lauri, Vuorisalo, Timo, Speed, James D. M.

“…Overexploitation of natural resources is often viewed as a problem characteristic of only the human species. However, any species could evolve a capacity to…”
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Trophic Downgrading of Planet Earth by Estes, James A., Terborgh, John, Brashares, Justin S., Power, Mary E., Berger, Joel, Bond, William J., Carpenter, Stephen R., Essington, Timothy E., Holt, Robert D., Jackson, Jeremy B. C., Marquis, Robert J., Oksanen, Lauri, Oksanen, Tarja, Paine, Robert T., Pikitch, Ellen K., Ripple, William J., Sandin, Stuart A., Scheffer, Marten, Schoener, Thomas W., Shurin, Jonathan B., Sinclair, Anthony R. E., Soulé, Michael E., Virtanen, Risto, Wardle, David A.

“…Until recently, large apex consumers were ubiquitous across the globe and had been for millions of years. The loss of these animals may be humankind's most…”
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The impact of thermal seasonality on terrestrial endotherm food web dynamics: a revision of the Exploitation Ecosystem Hypothesis by Oksanen, Tarja, Oksanen, Lauri, Vuorinen, Katariina E. M., Wolf, Christopher, Mäkynen, Aurelia, Olofsson, Johan, Ripple, William J., Virtanen, Risto, Utsi, Tove Aa

“…Many terrestrial endotherm food webs constitute three trophic level cascades. Others have two trophic level dynamics (food limited herbivores; plants adapted…”
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Why don't all species overexploit: erratum by Vuorinen, Katariina E. M., Oksanen, Tarja, Oksanen, Lauri, Speed, James D. M., Vuorisalo, Timo

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Herbivores inhibit climate-driven shrub expansion on the tundra by OLOFSSON, JOHAN, OKSANEN, LAURI, CALLAGHAN, TERRY, HULME, PHILIP E, OKSANEN, TARJA, SUOMINEN, OTSO

“…Recent Pan-Arctic shrub expansion has been interpreted as a response to a warmer climate. However, herbivores can also influence the abundance of shrubs in…”
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Where do the treeless tundra areas of northern highlands fit in the global biome system: toward an ecologically natural subdivision of the tundra biome by Virtanen, Risto, Oksanen, Lauri, Oksanen, Tarja, Cohen, Juval, Forbes, Bruce C., Johansen, Bernt, Käyhkö, Jukka, Olofsson, Johan, Pulliainen, Jouni, Tømmervik, Hans

“…According to some treatises, arctic and alpine sub‐biomes are ecologically similar, whereas others find them highly dissimilar. Most peculiarly, large areas of…”
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The Logic and Realism of the Hypothesis of Exploitation Ecosystems by Oksanen, Lauri, Oksanen, Tarja

“…Hypotheses on trophic dynamics in terrestrial ecosystems fall into two major categories: those in which plants are assumed to be invulnerable to their…”
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Spatial variation in vegetation damage relative to primary productivity, small rodent abundance and predation by Hoset, Katrine S, Kyrö, Kukka, Oksanen, Tarja, Oksanen, Lauri, Olofsson, Johan

“…The relative importance of top‐down and bottom‐up mechanisms in shaping community structure is still a highly controversial topic in ecology. Predatory…”
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Coping with fast climate change in northern ecosystems: mechanisms underlying the population-level response of a specialist avian predator by Terraube, Julien, Villers, Alexandre, Ruffino, Lise, Iso-Iivari, Lasse, Henttonen, Heikki, Oksanen, Tarja, Korpimäki, Erkki

“…Northern ecosystems are facing unprecedented climate modifications, which pose a major threat for arctic species, especially the specialist predator guild…”
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Predator-rodent-plant interactions along a coast-inland gradient in Fennoscandian tundra by Ruffino, Lise, Oksanen, Tarja, Hoset, Katrine S., Tuomi, Maria, Oksanen, Lauri, Korpimäki, Erkki, Bugli, Amandine, Hobson, Keith A., Johansen, Bernt, Mäkynen, Aurelia

“…Spatial variation in the strength of trophic cascades in arctic tundra has been related to flows of subsidies across ecosystem boundaries. Here, we ask whether…”
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Predation on two vole species by a shared predator: antipredatory response and prey preference by Sundell, Janne, Trebatická, Lenka, Oksanen, Tarja, Ovaskainen, Otso, Haapakoski, Marko, Ylönen, Hannu

“…In prey communities with shared predators, variation in prey vulnerability is a key factor in shaping community dynamics. Conversely, the hunting efficiency of…”
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Vole-vegetation interactions in an experimental, enemy free taiga floor system by Rammul, Üllar, Oksanen, Tarja, Oksanen, Lauri, Lehtelä, Jouko, Virtanen, Risto, Olofsson, Johan, Strengbom, Joachim, Rammul, Ivi, Ericson, Lars

“…Vole-vegetation interactions in a predation-free taiga environment of northern Fennoscandia were studied by transferring vegetation from natural Microtus…”
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Exploitation ecosystems in heterogeneous habitat complexes by Oksanen, Tarja

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Open tundra persist, but arctic features decline—Vegetation changes in the warming Fennoscandian tundra by Vuorinen, Katariina E. M., Oksanen, Lauri, Oksanen, Tarja, Pyykönen, Anni, Olofsson, Johan, Virtanen, Risto

“…In the forest‐tundra ecotone of the North Fennoscandian inland, summer and winter temperatures have increased by two to three centigrades since 1965, which is…”
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Co-evolution of jaegers (Stercorarius spp.) and arctic lemmings (Dicrostonyx spp. and Lemmus spp.) and the formation of the jaeger guild: an hypothesis by Ruffino, Lise, Oksanen, Tarja

“…The Fennoscandian tundra differs from other arctic regions hosting brown lemmings (Lemmus spp.) in that it supports exceptionally low numbers of avian…”
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Documenting lemming population change in the Arctic: Can we detect trends? by Ehrich, Dorothée, Schmidt, Niels M., Gauthier, Gilles, Alisauskas, Ray, Angerbjörn, Anders, Clark, Karin, Ecke, Frauke, Eide, Nina E., Framstad, Erik, Frandsen, Jay, Franke, Alastair, Gilg, Olivier, Giroux, Marie-Andrée, Henttonen, Heikki, Hörnfeldt, Birger, Ims, Rolf A., Kataev, Gennadiy D., Kharitonov, Sergey P., Killengreen, Siw T., Krebs, Charles J., Lanctot, Richard B., Lecomte, Nicolas, Menyushina, Irina E., Morris, Douglas W., Morrisson, Guy, Oksanen, Lauri, Oksanen, Tarja, Olofsson, Johan, Pokrovsky, Ivan G., Popov, Igor Yu, Reid, Donald, Roth, James D., Saalfeld, Sarah T., Samelius, Gustaf, Sittler, Benoit, Sleptsov, Sergey M., Smith, Paul A., Sokolov, Aleksandr A., Sokolova, Natalya A., Soloviev, Mikhail Y., Solovyeva, Diana V.

“…Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ecosystem. We present a comprehensive overview of lemming…”
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Long-Term Experiments Reveal Strong Interactions Between Lemmings and Plants in the Fennoscandian Highland Tundra by Olofsson, Johan, Oksanen, Lauri, Oksanen, Tarja, Tuomi, Maria, Hoset, Katrine S, Virtanen, Risto, Kyrö, Kukka

“…Both the theory and the observations suggest that, there are strong links between herbivores and plants in terrestrial ecosystems; although, the effect of…”
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Changes in the Spatial Configuration and Strength of Trophic Control Across a Productivity Gradient During a Massive Rodent Outbreak by Hoset, Katrine S., Ruffino, Lise, Tuomi, Maria, Oksanen, Tarja, Oksanen, Lauri, Mäkynen, Aurelia, Johansen, Bernt, Moe, Torunn

“…Understanding the determinants of spatial and temporal differences in the relative strength of consumer–resource interactions is an important endeavour in…”
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Correction to: Documenting lemming population change in the Arctic: Can we detect trends? by Ehrich, Dorothée, Schmidt, Niels M., Gauthier, Gilles, Alisauskas, Ray, Angerbjörn, Anders, Clark, Karin, Ecke, Frauke, Eide, Nina E., Framstad, Erik, Frandsen, Jay, Franke, Alastair, Gilg, Olivier, Giroux, Marie-Andrée, Henttonen, Heikki, Hörnfeldt, Birger, Ims, Rolf A., Kataev, Gennadiy D., Kharitonov, Sergey P., Killengreen, Siw T., Krebs, Charles J., Lanctot, Richard B., Lecomte, Nicolas, Menyushina, Irina E., Morris, Douglas W., Morrisson, Guy, Oksanen, Lauri, Oksanen, Tarja, Olofsson, Johan, Pokrovsky, Ivan G., Popov, Igor Yu, Reid, Donald, Roth, James D., Saalfeld, Sarah T., Samelius, Gustaf, Sittler, Benoit, Sleptsov, Sergey M., Smith, Paul A., Sokolov, Aleksandr A., Sokolova, Natalya A., Soloviev, Mikhail Y., Solovyeva, Diana V.

“…In the original published article, some of the symbols in figure 1A were modified incorrectly during the typesetting and publication process. The correct…”
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