Biodiversity effects on ecosystem functioning change along environmental stress gradients
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- Bastian Steudel
- Systematic Botany University of Zurich Zollikerstrasse 107 CH‐8008 Zurich Switzerland
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- Andy Hector
- Institute of Evolutionary Biology and Environmental Studies University of Zurich Winterthurerstrasse 190 CH‐8057 Zurich Switzerland
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- Thomas Friedl
- Department of Experimental Phycology and Culture Collection of Algae (SAG) Albrecht‐von‐Haller‐Institute for Plant Sciences Georg‐August‐University Göttingen Nikolausberger Weg 18 D‐37073 Göttingen Germany
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- Christian Löfke
- Institute of Applied Genetics and Cell Biology (IAGZ) University of Natural Resources and Life Sciences (BOKU) Muthgasse 18 A‐1190 Vienna Austria
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- Maike Lorenz
- Department of Experimental Phycology and Culture Collection of Algae (SAG) Albrecht‐von‐Haller‐Institute for Plant Sciences Georg‐August‐University Göttingen Nikolausberger Weg 18 D‐37073 Göttingen Germany
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- Moritz Wesche
- Department of Experimental Phycology and Culture Collection of Algae (SAG) Albrecht‐von‐Haller‐Institute for Plant Sciences Georg‐August‐University Göttingen Nikolausberger Weg 18 D‐37073 Göttingen Germany
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- Michael Kessler
- Systematic Botany University of Zurich Zollikerstrasse 107 CH‐8008 Zurich Switzerland
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- Mark Gessner
- editor
書誌事項
- 公開日
- 2012-09-03
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1111/j.1461-0248.2012.01863.x
- 公開者
- Wiley
この論文をさがす
説明
<jats:title>Abstract</jats:title><jats:p>Positive relationship between biodiversity and ecosystem functioning has been observed in many studies, but how this relationship is affected by environmental stress is largely unknown. To explore this influence, we measured the biomass of microalgae grown in microcosms along two stress gradients, heat and salinity, and compared our results with 13 published case studies that measured biodiversity–ecosystem functioning relationships under varying environmental conditions. We found that positive effects of biodiversity on ecosystem functioning decreased with increasing stress intensity in absolute terms. However, in relative terms, increasing stress had a stronger negative effect on low‐diversity communities. This shows that more diverse biotic communities are functionally less susceptible to environmental stress, emphasises the need to maintain high levels of biodiversity as an insurance against impacts of changing environmental conditions and sets the stage for exploring the mechanisms underlying biodiversity effects in stressed ecosystems.</jats:p>
収録刊行物
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- Ecology Letters
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Ecology Letters 15 (12), 1397-1405, 2012-09-03
Wiley
