Effects of fungicides on decomposer communities and litter decomposition in vineyard streams

The Science of the Total Environment
Diego FernándezRalf Bernhard Schäfer

Abstract

Large amounts of fungicides are applied globally and partly enter freshwater ecosystems. A few laboratory studies examined their effects on decomposer communities and the ecosystem process of litter decomposition (LD), whereas the field situation remains largely unknown. We conducted a field study with 17 stream sites in a German vineyard area where fungicides represent the dominant pest control agent. Passive samplers were used to monitor 15 fungicides and 4 insecticides in streams and their toxicity was described using the toxic unit approach, whereas sediment samples were taken to characterise total copper concentrations. Microbial and leaf-shredding invertebrate community composition and related LD rates were assessed at each site. The structure of microbial and shredder communities as well as fungal biomass changed along the fungicide toxicity gradient. The changes in microbial endpoints were associated with a reduction of microbial LD rate of up to 40% in polluted streams. By contrast, neither the invertebrate LD rate nor in-situ measured gammarid feeding rates correlated with fungicide toxicity, but both were negatively associated with sediment copper concentrations. A subsequent laboratory experiment employing field fun...Continue Reading

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Citations

Aug 28, 2015·The Science of the Total Environment·Dominic EnglertMirco Bundschuh
Oct 26, 2016·Environmental Toxicology and Chemistry·Adria A ElskusKathryn M Kuivila
Aug 18, 2016·Environmental Toxicology and Chemistry·Hung T VuVincent J Pettigrove
Feb 6, 2017·Environmental Toxicology and Chemistry·Jochen P ZubrodMirco Bundschuh
Apr 28, 2018·Biological Reviews of the Cambridge Philosophical Society·India MansourMatthias C Rillig
Aug 29, 2020·Bulletin of Environmental Contamination and Toxicology·Patrick BaudyJochen P Zubrod
Feb 2, 2019·Bulletin of Environmental Contamination and Toxicology·Jochen P ZubrodMirco Bundschuh
May 12, 2017·Environmental Toxicology and Chemistry·Mirco BundschuhDavid G Angeler
Jun 8, 2018·Environmental Science and Pollution Research International·Hongzhou YaoChao Xu
May 23, 2021·Environmental Science and Pollution Research International·Daniel A CamposAllan Philippe
Oct 21, 2018·The Science of the Total Environment·Florent RossiJoan Artigas
Jul 31, 2021·The Science of the Total Environment·Oliver WeisnerMatthias Liess
Mar 6, 2019·Environmental Science & Technology·Jochen P ZubrodRalf B Schäfer
Jul 7, 2017·Environmental Science & Technology·Jochen P ZubrodMirco Bundschuh
Oct 8, 2021·The Science of the Total Environment·Sergi SabaterJulio López-Doval
Oct 15, 2021·Environmental Science and Pollution Research International·Jérémy JabiolVéronique Gouy
Mar 19, 2022·The Science of the Total Environment·Moritz LinkRalf B Schäfer

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