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Article Dans Une Revue Nature Ecology & Evolution Année : 2020

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

Daniel Chapman
Laurence Carvalho
Bryan M Spears
  • Fonction : Auteur
Hans Estrup Andersen
Stefan Auer
Annette Baattrup-Pedersen
Lindsay Banin
Meryem Beklioğlu
  • Fonction : Auteur
Elisabeth Bondar-Kunze
Angel Borja
Paulo Branco
Tuba Bucak
Anthonie D Buijse
Ana Cristina Cardoso
Raoul-Marie Couture
Fabien Cremona
Dick de Zwart
  • Fonction : Auteur
Christian K Feld
M Teresa Ferreira
  • Fonction : Auteur
Heidrun Feuchtmayr
Mark O Gessner
Alexander Gieswein
Lidija Globevnik
Daniel Graeber
Wolfram Graf
  • Fonction : Auteur
Cayetano Gutiérrez-Cánovas
Jenica Hanganu
  • Fonction : Auteur
Uğur Işkın
  • Fonction : Auteur
Marko Järvinen
Erik Jeppesen
Niina Kotamäki
Marijn Kuijper
  • Fonction : Auteur
Jan U Lemm
  • Fonction : Auteur
Shenglan Lu
  • Fonction : Auteur
Anne Lyche Solheim
Ute Mischke
  • Fonction : Auteur
S Jannicke Moe
Peeter Nõges
Tiina Nõges
Steve J Ormerod
Yiannis Panagopoulos
Geoff Phillips
Leo Posthuma
Sarai Pouso
Christel Prudhomme
Katri Rankinen
Jes J Rasmussen
  • Fonction : Auteur
Jessica Richardson
  • Fonction : Auteur
Alban Sagouis
  • Fonction : Auteur
José Maria Santos
Ralf B Schäfer
Rafaela Schinegger
Stefan Schmutz
  • Fonction : Auteur
Susanne C Schneider
Lisa Schülting
  • Fonction : Auteur
Pedro Segurado
Kostas Stefanidis
  • Fonction : Auteur
Bernd Sures
  • Fonction : Auteur
Stephen J Thackeray
Jarno Turunen
María C Uyarra
  • Fonction : Auteur
Markus Venohr
Peter Carsten von der Ohe
Nigel Willby
Daniel Hering
  • Fonction : Auteur

Résumé

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. A cross-scale analysis of paired-stressor effects on biological variables of European freshwater ecosystems shows that in 39% of cases, significant effects were limited to single stressors, with nutrient enrichment being the most important of these in lakes. Additive and interactive effects were similarly frequent (ca. 30% each), this frequency being independent of the spatial scale of analysis for lakes but increasing with scale for rivers.
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Dates et versions

hal-03741314 , version 1 (01-08-2022)

Identifiants

Citer

Sebastian Birk, Daniel Chapman, Laurence Carvalho, Bryan M Spears, Hans Estrup Andersen, et al.. Impacts of multiple stressors on freshwater biota across spatial scales and ecosystems. Nature Ecology & Evolution, 2020, 4, pp.1060 - 1068. ⟨10.1038/s41559-020-1216-4⟩. ⟨hal-03741314⟩
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