Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/50843

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dc.contributor.authorFerreira, Verónicapor
dc.contributor.authorKoricheva, Juliapor
dc.contributor.authorDuarte, Sofia Alexandra Ferreirapor
dc.contributor.authorNiyogi, Dev K.por
dc.contributor.authorGuérold, Françoispor
dc.date.accessioned2018-02-22T11:29:57Z-
dc.date.issued2016-03-
dc.identifier.citationFerreira V, Koricheva J, Duarte S, Niyogi DK, Guérold F. 2016. Effects of anthropogenic heavy metal contamination on litter decomposition in streams – a meta-analysis. Environmental Pollution 210: 261-270por
dc.identifier.issn0269-7491por
dc.identifier.urihttp://hdl.handle.net/1822/50843-
dc.description.abstractMany streams worldwide are affected by heavy metal contamination, mostly due to past and present mining activities. Here we present a meta-analysis of 38 studies (reporting 133 cases) published between 1978 and 2014 that reported the effects of heavy metal contamination on the decomposition of terrestrial litter in running waters. Overall, heavy metal contamination significantly inhibited litter decomposition. The effect was stronger for laboratory than for field studies, likely due to better control of confounding variables in the former, antagonistic interactions between metals and other environmental variables in the latter or differences in metal identity and concentration between studies. For laboratory studies, only copper + zinc mixtures significantly inhibited litter decomposition, while no significant effects were found for silver, aluminum, cadmium or zinc considered individually. For field studies, coal and metal mine drainage strongly inhibited litter decomposition, while drainage from motorways had no significant effects. The effect of coal mine drainage did not depend on drainage pH. Coal mine drainage negatively affected leaf litter decomposition independently of leaf litter identity; no significant effect was found for wood decomposition, but sample size was low. Considering metal mine drainage, arsenic mines had a stronger negative effect on leaf litter decomposition than gold or pyrite mines. Metal mine drainage significantly inhibited leaf litter decomposition driven by both microbes and invertebrates, independently of leaf litter identity; no significant effect was found for microbially driven decomposition, but sample size was low. Overall, mine drainage negatively affects leaf litter decomposition, likely through negative effects on invertebrates.por
dc.description.sponsorshipWe thank many authors for providing information that was not available in the primary studies as well as two anonymous reviewers for the comments made on an earlier version of the manuscript. This study was partially supported by the Portuguese Foundation for Science and Technology (FCT) through the strategic project UID/MAR/04292/2013 granted to MARE. Financial support given by the FCT to VF (SFRH/BPD/76482/2011, program POPH/FSE; IF/00129/2014) and SD (SFRH/BPD/47574/2008, SFRH/BPD/109842/2015) is gratefully acknowledged.por
dc.language.isoengpor
dc.publisherElsevierpor
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147321/PTpor
dc.relationinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F76482%2F2011/PTpor
dc.relationinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F47574%2F2008/PTpor
dc.rightsrestrictedAccesspor
dc.subjectAnimalspor
dc.subjectMetals, Heavypor
dc.subjectMiningpor
dc.subjectRiverspor
dc.subjectWaste waterpor
dc.subjectWater pollutantspor
dc.subjectContamination originpor
dc.subjectDecomposerpor
dc.subjectLitter typepor
dc.subjectMetal identitypor
dc.subjectStudy typepor
dc.titleEffects of anthropogenic heavy metal contamination on litter decomposition in streams: a meta-analysispor
dc.typearticlepor
dc.peerreviewedyespor
oaire.citationStartPage261por
oaire.citationEndPage270por
oaire.citationVolume210por
dc.identifier.doi10.1016/j.envpol.2015.12.060por
dc.identifier.pmid26774191por
dc.subject.fosCiências Naturais::Ciências Biológicaspor
dc.description.publicationversioninfo:eu-repo/semantics/publishedVersionpor
dc.subject.wosScience & Technologypor
sdum.journalEnvironmental Pollutionpor
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