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Neglected impacts of plant protection products on invertebrate aquatic biodiversity: a focus on eco-evolutionary processes
2024
Coutellec, Marie-agnès | Chaumot, Arnaud | Sucré, Elliott
The application of plant protection products (PPPs) may have delayed and long-term non-intentional impacts on aquatic invertebrates inhabiting agricultural landscapes. Such effects may induce population responses based on developmental and transgenerational plasticity, selection of genetic resistance, as well as increased extirpation risks associated with random genetic drift. While the current knowledge on such effects of PPPs is still scarce in non-target aquatic invertebrate species, evidences are accumulating that support the need for consideration of evolutionary components of the population response to PPPs in standard procedures of risk assessment. This mini-review, as part of a contribution to the collective scientific assessment on PPP impacts on biodiversity and ecosystem services performed in the period 2020–2022, presents a brief survey of the current results published on the subject, mainly in freshwater crustaceans, and proposes some research avenues and strategies that we feel relevant to fill this gap.
Show more [+] Less [-]Impacts of neonicotinoids on biodiversity: a critical review
2024
Mamy, Laure | Pesce, Stéphane | Sanchez, Wilfried | Aviron, Stéphanie | Bedos, Carole | Berny, Philippe | Bertrand, Colette | Betoulle, Stéphane | Charles, Sandrine | Chaumot, Arnaud | Coeurdassier, Michael | Coutellec, Marie-agnès | Crouzet, Olivier | Faburé, Juliette | Fritsch, Clémentine | Gonzalez, Patrice | Hedde, Mickael | Leboulanger, Christophe | Margoum, Christelle | Mougin, Christian | Munaron, Dominique | Nélieu, Sylvie | Pelosi, Céline | Rault, Magali | Sucré, Elliott | Thomas, Marielle | Tournebize, Julien | Leenhardt, Sophie
Neonicotinoids are the most widely used class of insecticides in the world, but they have raised numerous concerns regarding their effects on biodiversity. Thus, the objective of this work was to do a critical review of the contamination of the environment (soil, water, air, biota) by neonicotinoids (acetamiprid, clothianidin, imidacloprid, thiacloprid, thiamethoxam) and of their impacts on terrestrial and aquatic biodiversity. Neonicotinoids are very frequently detected in soils and in freshwater, and they are also found in the air. They have only been recently monitored in coastal and marine environments, but some studies already reported the presence of imidacloprid and thiamethoxam in transitional or semi-enclosed ecosystems (lagoons, bays, and estuaries). The contamination of the environment leads to the exposure and to the contamination of non-target organisms and to negative effects on biodiversity. Direct impacts of neonicotinoids are mainly reported on terrestrial invertebrates (e.g., pollinators, natural enemies, earthworms) and vertebrates (e.g., birds) and on aquatic invertebrates (e.g., arthropods). Impacts on aquatic vertebrate populations and communities, as well as on microorganisms, are less documented. In addition to their toxicity to directly exposed organisms, neonicotinoid induce indirect effects via trophic cascades as demonstrated in several species (terrestrial and aquatic invertebrates). However, more data are needed to reach firmer conclusions and to get a clearer picture of such indirect effects. Finally, we identified specific knowledge gaps that need to be filled to better understand the effects of neonicotinoids on terrestrial, freshwater, and marine organisms, as well as on ecosystem services associated with these biotas.
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