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dc.contributor.authorCornejo, Aydeé
dc.contributor.authorPérez Viñuela, Javier ORCID
dc.contributor.authorAlonso Blanco, Alberto
dc.contributor.authorLópez Rojo, Naiara
dc.contributor.authorMonroy Zarzuelo, Silvia ORCID
dc.contributor.authorBoyero González, María Luz ORCID
dc.identifier.citationJournal of Environmental Management 263 : (2020) // Article ID 110425es_ES
dc.description.abstractFungicides can reach streams through runoff or adhered to leaf litter, and have the potential to adversely affect processes such as litter decomposition and associated communities. This study investigated the effects of chlorothalonil, a widely used fungicide, on litter decomposition, detritivorous invertebrates (larvae of the insect Sericostoma pyrenaicum) and aquatic hyphomycetes (AHs), using stream microcosms. We considered the single and combined effects of two exposure modes: waterborne fungicide (at two concentrations: 0.125 mu g L-1 and 1.25 mu g L-1) and litter previously sprayed with the fungicide (i.e., pre-treated litter, using the application dose concentration of 1250 mu g L-1). We also assessed whether fungicide effects on invertebrates, AHs and decomposition varied among litter types (i.e., different plant species), and whether plant diversity mitigated any of those effects. Invertebrate survival and AH sporulation rate and taxon richness were strongly reduced by most combinations of fungicide exposure modes; however, invertebrates were not affected by the low waterborne concentration, whereas AHs suffered the highest reduction at this concentration. Total decomposition was slowed down by both exposure modes, and microbial decomposition was reduced by litter pre-treatment, while the waterborne fungicide had different effects depending on plant species. In general, with the exception of microbial decomposition, responses varied little among litter types. Moreover, and contrary to our expectation, plant diversity did not modulate the fungicide effects. Our results highlight the severity of fungicide inputs to streams through effects on invertebrate and microbial communities and ecosystem functioning, even in streams with well-preserved, diverse riparian vegetation.es_ES
dc.description.sponsorshipWe thank Richard Pearson and two anonymous reviewers for their comments on the manuscript. This study was derived from AC's PhD thesis and AA's MSc thesis. AC was supported by a fellowship of the National Secretariat of Science, Technology and Innovation (SENACYT) and the National Research System of Panama (SNI). SM was supported by a postdoctoral grant from the University of the Basque Country. Additional funding was obtained from the Spanish Ministry for Science, Innovation and Universities and FEDER (project BioLoss, RTI2018095023-B-I00) and Basque Government funds (IT951-16).es_ES
dc.publisherAcademic Press-Elsevieres_ES
dc.subjectlitter decompositiones_ES
dc.subjectaquatic hyphomyceteses_ES
dc.subjectplant diversityes_ES
dc.subjectleaf-litter decompositiones_ES
dc.subjectfood qualityes_ES
dc.titleA common fungicide impairs stream ecosystem functioning through effects on aquatic hyphomycetes and detritivorous caddisflieses_ES
dc.rights.holder2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.es_ES
dc.rights.holderAtribución-NoComercial-SinDerivadas 3.0 España*
dc.departamentoesBiología vegetal y ecologíaes_ES
dc.departamentoeuLandaren biologia eta ekologiaes_ES

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2020  The  Authors. Published  by  Elsevier  Ltd. This  is  an  open  access  article  under  the  CC  BY-NC-ND  license.
Except where otherwise noted, this item's license is described as 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.