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|Title:||Impacts of multiple stressors on freshwater biota across spatial scales and ecosystems: MARS Synthesis Paper|
|Authors:||BIRK SEBASTIAN; CHAPMAN DANIEL; CARVALHO LAURENCE; SPEARS BRYAN M.; ANDERSON HANS ESTRUP; ARGILLIER CHRISTINE; AUER STEFAN; BAATTRUP-PEDERSEN ANNETTE; BANIN LINDSAY; BEKLIOGLU MERYEM; BONDAR-KUNZE ELISABETH; BORJA ANGEL; BRANCO PAULO; BUCAK TUBA; BUIJSE TOM; DE JESUS CARDOSO ANA; COUTURE RAOUL-MARIE; CREMONA FABIEN; DE ZWART DICK; FELD CHRISTIAN; FERREIRA TERESA; FEUCHTMAYR HEIDRUN; GESSNER MARK; GIESWEIN ALEXANDER; GLOBEVNIK LIDIJA; GRAEBER DANIEL; GRAF WOLFRAM; GUTIERREZ- CANOVAS CAYETANO; HANGANU JENICA; ISKIN UGUR; JARVINEN MARKO; JEPPESEN ERIK; KOTAMAKI NIINA; KUIJPER MARIJN; LEMM JAN; LU SHEGLAN; SOLHEIM A.-L.; MISCHKE U; MOE JANNICKE; NOGES PEETER; NOGES TIINA; ORMEROD STEVE; PANAGOPOULOS YIANNIS; PHILLIPS GEOFF; POSTHUMA LEO; POUSO SARAI; PRUDHOMME CHRISTEL; RANKINEN KATRI; RASMUSSEN JES; RICHARDSON JESSICA; SAGOUIS ALBAN; SANTOS JOSE MARIA; SCHAFER RALF; SCHINEGGER RAFAELA; SCHMUTZ STEFAN; SCHNEIDER SUSANNE; SCHULTING LISA; SEGURADO PEDRO; STEFANIDIS KOSTAS; SURES BERND; THACKERAY STEPHEN; TURUNEN JARNO; UYARRA MARÍA C.; VENOHR MARCUS; VON DER OHE PETER C; WILLBY NIGEL; HERING DANIEL|
|Citation:||NATURE ECOLOGY & EVOLUTION vol. 4 p. 1060-1068|
|Publisher:||NATURE PUBLISHING GROUP|
|Type:||Articles in periodicals and books|
|Abstract:||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.|
|JRC Directorate:||Sustainable Resources|
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