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Hans Estrup Andersen

Impacts of multiple stressors on freshwater biota across spatial scales and ecosystems

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Sebastian Birk, University of Duisburg-Essen
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  • Daniel Chapman, Centre for Ecology and Hydrology, University of Stirling
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  • Laurence Carvalho, Centre for Ecology and Hydrology
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  • Bryan M. Spears, Centre for Ecology and Hydrology
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  • Hans Estrup Andersen
  • Christine Argillier, Irstea
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  • Stefan Auer, Wasser Cluster Lunz—Inter-university Center for Aquatic Ecosystem Research
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  • Annette Baattrup-Pedersen
  • Lindsay Banin, Centre for Ecology and Hydrology
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  • Meryem Beklioğlu, Middle East Technical University
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  • Elisabeth Bondar-Kunze, Wasser Cluster Lunz—Inter-university Center for Aquatic Ecosystem Research
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  • Angel Borja, AZTI
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  • Paulo Branco, University of Lisbon
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  • Tuba Bucak, Middle East Technical University, Nature Conservation Centre
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  • Anthonie D. Buijse, Deltares
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  • Ana Cristina Cardoso, European Commission Joint Research Centre Institute
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  • Raoul Marie Couture, Norwegian Institute for Water Research, Universite Laval
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  • Fabien Cremona, Estonian University of Life Sciences
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  • Dick de Zwart, Mermayde
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  • Christian K. Feld, University of Duisburg-Essen
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  • M. Teresa Ferreira, University of Lisbon
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  • Heidrun Feuchtmayr, Lancaster University
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  • Mark O. Gessner, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Technical University of Berlin
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  • Alexander Gieswein, University of Duisburg-Essen
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  • Lidija Globevnik, University of Ljubljana
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  • Daniel Graeber, Helmholtz Centre for Environmental Research
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  • Wolfram Graf, University of Natural Resources and Life Sciences, Vienna
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  • Cayetano Gutiérrez-Cánovas, Cardiff University, University of Barcelona
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  • Jenica Hanganu, Danube Delta National Institute for Research and Development
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  • Uğur Işkın, Middle East Technical University
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  • Marko Järvinen, Finnish Environment Institute
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  • Erik Jeppesen
  • Niina Kotamäki, Finnish Environment Institute
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  • Marijn Kuijper, Deltares
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  • Jan U. Lemm, University of Duisburg-Essen
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  • Shenglan Lu, DHI Water - Environment - Health
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  • Anne Lyche Solheim, Norwegian Institute for Water Research
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  • Ute Mischke, Leibniz-Institute of Freshwater Ecology and Inland Fisheries
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  • S. Jannicke Moe, Norwegian Institute for Water Research
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  • Peeter Nõges, Estonian University of Life Sciences
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  • Tiina Nõges, Estonian University of Life Sciences
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  • Steve J. Ormerod, Cardiff University
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  • Yiannis Panagopoulos, National Technical University of Athens, Hellenic Centre for Marine Research
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  • Geoff Phillips, University of Stirling
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  • Leo Posthuma, National Institute of Public Health and the Environment, Radboud University Nijmegen
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  • Sarai Pouso, AZTI
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  • Christel Prudhomme, Centre for Ecology and Hydrology
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  • Katri Rankinen, Finnish Environment Institute
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  • Jes J. Rasmussen
  • Jessica Richardson, Centre for Ecology and Hydrology
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  • Alban Sagouis, Irstea, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Free University of Berlin
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  • José Maria Santos, University of Lisbon
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  • Ralf B. Schäfer, University of Koblenz-Landau
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  • Rafaela Schinegger, University of Natural Resources and Life Sciences, Vienna
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  • Stefan Schmutz, University of Natural Resources and Life Sciences, Vienna
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  • Susanne C. Schneider, Norwegian Institute for Water Research
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  • Lisa Schülting, University of Natural Resources and Life Sciences, Vienna
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  • Pedro Segurado, University of Lisbon
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  • Kostas Stefanidis, National Technical University of Athens, Hellenic Centre for Marine Research
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  • Bernd Sures, University of Duisburg-Essen
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  • Stephen J. Thackeray, Lancaster University
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  • Jarno Turunen, Finnish Environment Institute
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  • María C. Uyarra, AZTI
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  • Markus Venohr, Leibniz-Institute of Freshwater Ecology and Inland Fisheries
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  • Peter Carsten von der Ohe, Amalex Environmental Solutions
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  • Nigel Willby, University of Stirling
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  • Daniel Hering, University of Duisburg-Essen

Climate and land-use change drive a suite of stressors that shape ecosystems and interact to yield complex ecological responses (that is, additive, antagonistic and synergistic effects). We know little about the spatial scales relevant for the outcomes of such interactions and little about effect sizes. These knowledge gaps need to be filled to underpin future land management decisions or climate mitigation interventions for protecting and restoring freshwater ecosystems. This study combines data across scales from 33 mesocosm experiments with those from 14 river basins and 22 cross-basin studies in Europe, producing 174 combinations of paired-stressor effects on a biological response variable. Generalized linear models showed that only one of the two stressors had a significant effect in 39% of the analysed cases, 28% of the paired-stressor combinations resulted in additive effects and 33% resulted in interactive (antagonistic, synergistic, opposing or reversal) effects. For lakes, the frequencies of additive and interactive effects were similar for all spatial scales addressed, while for rivers these frequencies increased with scale. Nutrient enrichment was the overriding stressor for lakes, with effects generally exceeding those of secondary stressors. For rivers, the effects of nutrient enrichment were dependent on the specific stressor combination and biological response variable. These results vindicate the traditional focus of lake restoration and management on nutrient stress, while highlighting that river management requires more bespoke management solutions.

Original languageEnglish
JournalNature Ecology and Evolution
Volume4
Issue8
Pages (from-to)1060-1068
Number of pages9
ISSN2397-334X
DOIs
Publication statusPublished - 2020

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