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Effects of cadmium and resource quality on freshwater detritus processing chains: a microcosm approach with two insect species

2014-03-20Artigo científico Acesso restrito
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg06:Água Potável e Saneamento
dc.contributor.authorCampos, Diana
dc.contributor.authorAlves, Artur
dc.contributor.authorLemos, Marco F. L.
dc.contributor.authorCorreia, António
dc.contributor.authorSoares, Amadeu M. V. M.
dc.contributor.authorPestana, João L. T.
dc.date.accessioned2026-05-08T15:32:37Z
dc.date.available2026-05-08T15:32:37Z
dc.date.issued2014-03-20
dc.description.abstractDetritus processing is vital for freshwater ecosystems that depend on the leaf litter from riparian vegetation and is mediated by microorganisms and aquatic invertebrates. Shredder invertebrates transform coarse particulate organic matter into fine particulate organic matter used as food by collector species. Direct and indirect effects of contaminants can impair detritus processing and thus affect the functioning of these ecosystems. Here, we assessed the combined effects of a toxic metal (cadmium) and resource quality (leaf species) on detritus processing and shredder-collector interactions. We considered two types of leaves, alder and eucalyptus that were microbially conditioned under different Cd concentrations in the laboratory. The microbial communities present on leaves were analyzed by Denaturing Gradient Gel Electrophoresis (DGGE), and we also measured microbial respiration rates. Sericostoma vittatum (a caddisfly shredder) and Chironomus riparius (a midge collector) were also exposed to Cd and allowed to consume the corresponding alder or eucalyptus leaves. We evaluated C. riparius growth and leaf mass loss in multispecies microcosms. Cadmium exposure affected leaf conditioning and fungal diversity on both leaf species, as assessed by DGGE. Cadmium exposure also affected the mass loss of alder leaves by reductions in detritivore feeding, and impaired C. riparius growth. Chironomus riparius consumed alder leaf discs in the absence of shredders, but S. vittatum appear to promote C. riparius growth in treatments containing eucalyptus. These results show that indirect effects of contaminants along detritus-processing chains can occur through effects on shredder-collector interactions such as facilitation but they also depend on the nutritional quality of detritus and on sensitivity and feeding plasticity of detritivore species.eng
dc.description.sponsorshipFinancial support for this work was provided by the projects \u2018\u2018MIDGE - MIcroevolutionary Dynamics and Genetic Erosion in pollution-affected Chironomus populations\u2019\u2019 ref: FCOMP-01-0124-FEDER-008954 (Ref. FCT PTDC/BIA-BEC/104125/2008) and project \u2018\u2018IDEAL\u2014Insecticides, DEtritivores and ALiens: Combined effects of invasive species and insecticides along detritus based stream food webs\u2019\u2019, ref: FCOMP-01-0124-FEDER-019380 (Ref. FCT: PTDC/AAC-AMB/119433/2010) both supported by the COMPETE program (Programa Operacional Fatores de Competitividade,) (FEDER component) and by the Fun-dac\u00B8\u00E3o para a Ci\u00EAncia e Tecnologia (FCT). FCT also financed a postdoctoral research grant to JLT Pestana (SFRH/BPD/45342/2008). AMVM Soares is \u2018\u2018Bolsista CAPES/BRASIL\u2019\u2019, Project N\u00B0A058/2013. This work was supported by European Funds through COMPETE and by National Funds through the Portuguese Science Foundation (FCT) within project PEst-C/MAR/LA0017/2013.
dc.identifier.citationCampos, D., Alves, A., Lemos, M. F. L., Correia, A., Soares, A. M. V. M., & Pestana, J. L. T. (2014). Effects of cadmium and resource quality on freshwater detritus processing chains: a microcosm approach with two insect species. Ecotoxicology, 23(5), 830-839. https://doi.org/10.1007/s10646-014-1223-9
dc.identifier.doi10.1007/s10646-014-1223-9
dc.identifier.issn0963-9292
dc.identifier.issn1573-3017
dc.identifier.urihttp://hdl.handle.net/10400.8/16265
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Nature
dc.relationMIDGE - MIcroevolutionary Dynamics and Genetic Erosion in pollution-affected Chironomus populations
dc.relationIDEAL - Insecticides, DEtritivores and ALiens: Combined effects of invasive species and insecticides along detritus based stream food webs
dc.relationDIRECT AND INDIRECT EFFECTS OF CONTAMINANTS ON DETRITUS PROCESSING WITHIN FRESHWATER FOOD WEBS
dc.relationStrategic Project - LA 17 - 2013-2014
dc.relation.hasversionhttps://link.springer.com/article/10.1007/s10646-014-1223-9
dc.relation.ispartofEcotoxicology
dc.rights.uriN/A
dc.subjectCadmium
dc.subjectDetritus processing
dc.subjectFreshwater
dc.subjectResource quality
dc.subjectShredder-collector interactions
dc.subjectMicrocosms
dc.titleEffects of cadmium and resource quality on freshwater detritus processing chains: a microcosm approach with two insect specieseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPTDC/BIA-BEC/104125/2008
oaire.awardNumberPTDC/AAC-AMB/119433/2010
oaire.awardNumberSFRH/BPD/45342/2008
oaire.awardNumberPEst-C/MAR/LA0017/2013
oaire.awardTitleMIDGE - MIcroevolutionary Dynamics and Genetic Erosion in pollution-affected Chironomus populations
oaire.awardTitleIDEAL - Insecticides, DEtritivores and ALiens: Combined effects of invasive species and insecticides along detritus based stream food webs
oaire.awardTitleDIRECT AND INDIRECT EFFECTS OF CONTAMINANTS ON DETRITUS PROCESSING WITHIN FRESHWATER FOOD WEBS
oaire.awardTitleStrategic Project - LA 17 - 2013-2014
oaire.awardURIhttp://hdl.handle.net/10400.8/16262
oaire.awardURIhttp://hdl.handle.net/10400.8/16263
oaire.awardURIhttp://hdl.handle.net/10400.8/15576
oaire.awardURIhttp://hdl.handle.net/10400.8/16264
oaire.citation.endPage839
oaire.citation.issue5
oaire.citation.startPage830
oaire.citation.titleEcotoxicology
oaire.citation.volume23
oaire.fundingStreamConcurso para Projectos de I&D em todos os Domínios Científicos - 2008
oaire.fundingStreamConcurso de Projectos de Investigação Científica e Desenvolvimento Tecnológico em todos os Domínios Científicos - 2010
oaire.fundingStreamConcurso para Financiamento de Projectos de IC&DT Estratégicos e de Interesse Público promovidos por Laboratórios Associados e Unidades de I&D - 2013 - COMPETE
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLemos
person.givenNameMarco
person.identifier996337
person.identifier.ciencia-id971F-ACCA-C0D1
person.identifier.orcid0000-0001-9887-1864
person.identifier.ridF-7951-2011
person.identifier.scopus-author-id7006042884
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relation.isAuthorOfPublication.latestForDiscoveryf21e5540-df76-43e9-ad64-93edd70da1f1
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