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Träfflista för sökning "WFRF:(Welker J. M.) srt2:(2005-2009)"

Search: WFRF:(Welker J. M.) > (2005-2009)

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1.
  • Cornelissen, Johannes H C, et al. (author)
  • Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes
  • 2007
  • In: Ecology Letters. - : Wiley. - 1461-023X .- 1461-0248. ; 10:7, s. 619-627
  • Journal article (peer-reviewed)abstract
    • Whether climate change will turn cold biomes from large long-term carbon sinks into sources is hotly debated because of the great potential for ecosystem-mediated feedbacks to global climate. Critical are the direction, magnitude and generality of climate responses of plant litter decomposition. Here, we present the first quantitative analysis of the major climate-change-related drivers of litter decomposition rates in cold northern biomes worldwide.Leaf litters collected from the predominant species in 33 global change manipulation experiments in circum-arctic-alpine ecosystems were incubated simultaneously in two contrasting arctic life zones. We demonstrate that longer-term, large-scale changes to leaf litter decomposition will be driven primarily by both direct warming effects and concomitant shifts in plant growth form composition, with a much smaller role for changes in litter quality within species. Specifically, the ongoing warming-induced expansion of shrubs with recalcitrant leaf litter across cold biomes would constitute a negative feedback to global warming. Depending on the strength of other (previously reported) positive feedbacks of shrub expansion on soil carbon turnover, this may partly counteract direct warming enhancement of litter decomposition.
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2.
  • Post, Eric, et al. (author)
  • Ecological Dynamics Across the Arctic Associated with Recent Climate Change
  • 2009
  • In: Science. - : American Association for the Advancement of Science (AAAS). - 1095-9203 .- 0036-8075. ; 325:5946, s. 1355-1358
  • Research review (peer-reviewed)abstract
    • 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 ecosystem scales. Despite the buffering effect of landscape heterogeneity, Arctic ecosystems and the trophic relationships that structure them have been severely perturbed. These rapid changes may be a bellwether of changes to come at lower latitudes and have the potential to affect ecosystem services related to natural resources, food production, climate regulation, and cultural integrity. We highlight areas of ecological research that deserve priority as the Arctic continues to warm.
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  • Result 1-2 of 2
Type of publication
journal article (1)
research review (1)
Type of content
peer-reviewed (2)
Author/Editor
Hik, David S. (2)
Callaghan, Terry V. (2)
Bret-Harte, M. Syndo ... (1)
McGuire, A. David (1)
Molau, Ulf, 1951 (1)
Schmidt, Inger K. (1)
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Welker, Jeffrey M. (1)
Lindblad, Karin (1)
Schmidt, Niels Marti ... (1)
Karlsson, Staffan (1)
Alatalo, Juha, 1966- (1)
Jägerbrand, Annika K ... (1)
Michelsen, Anders (1)
Totland, O (1)
van Bodegom, Peter M ... (1)
Elberling, Bo (1)
Fox, Anthony D. (1)
Post, Eric (1)
Aerts, Rien (1)
Jonasson, Sven (1)
Ims, Rolf A. (1)
Christensen, Torben (1)
Gilg, Olivier (1)
Soudzilovskaia, Nade ... (1)
Hofgaard, Annika (1)
Wookey, Philip A. (1)
Schindler, Daniel E. (1)
Jeppesen, Erik (1)
Stenström, Anna (1)
Cooper, Elisabeth J. (1)
Onipchenko, Vladimir ... (1)
Jónsdóttir, Ingibjör ... (1)
Magnusson, Borgthor (1)
Dalen, Linda (1)
Gudmundsson, Jon (1)
Stirling, Ian (1)
Madsen, Jesper (1)
Forchhammer, Mads C. (1)
Gwynn-Jones, Dylan (1)
Cornelissen, Johanne ... (1)
Van Logtestijn, Rich ... (1)
Chapin, Stuart F. (1)
Gerdol, Renato G (1)
Hartley, Anne E (1)
Klein, Julia A (1)
Laundre, Jim (1)
Quested, Helen M. (1)
Sandvik, Sylvi M (1)
Shaver, Gus R. (1)
Solheim, Bjørn S (1)
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University
University of Gothenburg (1)
Uppsala University (1)
Stockholm University (1)
University of Gävle (1)
Mälardalen University (1)
Jönköping University (1)
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Lund University (1)
VTI - The Swedish National Road and Transport Research Institute (1)
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Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)

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