Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers

We used the trait composition of macroinvertebrate communities to identify the effects of pesticides and multiple stressors associated with urban land use at different sites of four rivers in Spain. Several physical and chemical stressors (high metal pollution, nutrients, elevated temperature and fl...

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Autores: Kuzmanović, Maja, Dolédec, Sylvain, de Castro-Català, Núria, Ginebreda Martí, Antoni, Sabater, Sergi, Muñoz, Isabel, Barceló, Damià
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/174783
Acceso en línea:http://hdl.handle.net/10261/174783
Access Level:acceso abierto
Palabra clave:Aquatic environments
Macroinvertebrate traits
Pesticides
Multiple stressors
Urban pollution
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spelling Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers Kuzmanović, Maja Dolédec, Sylvain de Castro-Català, Núria Ginebreda Martí, Antoni Sabater, Sergi Muñoz, Isabel Barceló, Damià Aquatic environments Macroinvertebrate traits Pesticides Multiple stressors Urban pollution We used the trait composition of macroinvertebrate communities to identify the effects of pesticides and multiple stressors associated with urban land use at different sites of four rivers in Spain. Several physical and chemical stressors (high metal pollution, nutrients, elevated temperature and flow alterations) affected the urban sites. The occurrence of multiple stressors influenced aquatic assemblages at 50% of the sites. We hypothesized that the trait composition of macroinvertebrate assemblages would reflect the strategies that the assemblages used to cope with the respective environmental stressors. We used RLQ and fourth corner analysis to address the relationship between stressors and the trait composition of benthic macroinvertebrates. We found a statistically significant relationship between the trait composition and the exposure of assemblages to environmental stressors. The first RLQ dimension, which explained most of the variability, clearly separated sites according to the stressors. Urban-related stressors selected taxa that were mainly plurivoltine and fed on deposits. In contrast, pesticide impacted sites selected taxa with high levels of egg protection (better egg survival), indicating a potentially higher risk for egg mortality. Moreover, the trait diversity of assemblages at urban sites was low compared to that observed in pesticide impacted sites, suggesting the homogenization of assemblages in urban areas. © 2017 The Authors This study has been supported by the EU FP7 project GLOBAQUA [Grant Agreement No. 603629], the NET-Scarce project [Redes de Excelencia CTM2015-69780-REDC]?and by the Generalitat de Catalunya [Consolidated Research Groups: 2014 SGR 418?Water and Soil Quality Unit and 2014 SGR 291?ICRA]. MK acknowledges AGAUR fellowship of the Generalitat de Catalunya.?Special thanks to Laura Armend?riz for the identification of the?Oligochaeta. Peer reviewed Elsevier http://hdl.handle.net/10261/174783
title Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
spellingShingle Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
Kuzmanović, Maja
Aquatic environments
Macroinvertebrate traits
Pesticides
Multiple stressors
Urban pollution
title_short Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
title_full Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
title_fullStr Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
title_full_unstemmed Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
title_sort Environmental stressors as a driver of the trait composition of benthic macroinvertebrate assemblages in polluted Iberian rivers
author Kuzmanović, Maja
author_facet Kuzmanović, Maja
Dolédec, Sylvain
de Castro-Català, Núria
Ginebreda Martí, Antoni
Sabater, Sergi
Muñoz, Isabel
Barceló, Damià
author_role author
author2 Dolédec, Sylvain
de Castro-Català, Núria
Ginebreda Martí, Antoni
Sabater, Sergi
Muñoz, Isabel
Barceló, Damià
author2_role author
author
author
author
author
author
topic Aquatic environments
Macroinvertebrate traits
Pesticides
Multiple stressors
Urban pollution
topic_facet Aquatic environments
Macroinvertebrate traits
Pesticides
Multiple stressors
Urban pollution
description We used the trait composition of macroinvertebrate communities to identify the effects of pesticides and multiple stressors associated with urban land use at different sites of four rivers in Spain. Several physical and chemical stressors (high metal pollution, nutrients, elevated temperature and flow alterations) affected the urban sites. The occurrence of multiple stressors influenced aquatic assemblages at 50% of the sites. We hypothesized that the trait composition of macroinvertebrate assemblages would reflect the strategies that the assemblages used to cope with the respective environmental stressors. We used RLQ and fourth corner analysis to address the relationship between stressors and the trait composition of benthic macroinvertebrates. We found a statistically significant relationship between the trait composition and the exposure of assemblages to environmental stressors. The first RLQ dimension, which explained most of the variability, clearly separated sites according to the stressors. Urban-related stressors selected taxa that were mainly plurivoltine and fed on deposits. In contrast, pesticide impacted sites selected taxa with high levels of egg protection (better egg survival), indicating a potentially higher risk for egg mortality. Moreover, the trait diversity of assemblages at urban sites was low compared to that observed in pesticide impacted sites, suggesting the homogenization of assemblages in urban areas. © 2017 The Authors
publishDate 2017
format article
status_str publishedVersion
url http://hdl.handle.net/10261/174783
eu_rights_str_mv openAccess
publisher Elsevier
institution Consejo Superior de Investigaciones Científicas (CSIC)
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
_version_ 1878431895015915521
publishDateSort 2017
author_browse Barceló, Damià
Dolédec, Sylvain
Ginebreda Martí, Antoni
Kuzmanović, Maja
Muñoz, Isabel
Sabater, Sergi
de Castro-Català, Núria
publisherStr Elsevier
score 6.9303427

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