Article (Scientific journals)
Neonicotinoids: Still present in farmland birds despite their ban.
Fuentes, Elva; Gaffard, Agathe; Rodrigues, Anaïs et al.
2023In Chemosphere, 321, p. 138091
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Keywords :
Biomonitoring; Farmland birds; Passerines; Pesticides; Raptors; clothianidin; Insecticides; Neonicotinoids; Thiazoles; Nitro Compounds; Animals; Humans; Farms; Neonicotinoids/toxicity; Quail; Songbirds; Adverse effect; Bird species; Non-target organism; Passerine; Pesticide residue; Raptor; Trophic level; Environmental Engineering; Environmental Chemistry; Chemistry (all); Pollution; Public Health, Environmental and Occupational Health; Health, Toxicology and Mutagenesis; General Medicine; General Chemistry
Abstract :
[en] Neonicotinoids (neonics) are the most widely used insecticides worldwide and are considered to be of low risk to non-target organisms such as vertebrates. Further, they are reported to be rapidly excreted and metabolized, reducing their potential toxicity. Nevertheless, growing evidence of adverse effects of neonics on farmland bird species raise questions about the purported harmless nature of these pesticides. We attempted to search for pesticide residues in species of different trophic levels and at different life stages, by using multiple bird monitoring programs on a Long-Term Socio-Ecological Research (LTSER) platform. Three passerine birds-the blackbird (Turdus merula), cirl bunting (Emberiza cirlus), and common nightingale (Luscinia megarhynchos)-that feed on seeds and invertebrates were monitored during their reproductive period, and the grey partridge (Perdix perdix) that feeds on seeds was monitored during its wintering period. We also monitored chicks of an apex predator-the Montagu's harrier (Circus pygargus)-that preys mostly upon common voles but also upon insects. We found that the birds' blood samples showed presence of residues of five neonics: three banned since 2018 in France-clothianidin, thiacloprid, and thiamethoxam-and two-dinotefuran and nitenpyram-used for veterinary purposes only. While none of these neonics was detected in blackbirds, all were present in grey partridges. Clothianidin was detected in all species, except blackbirds. Concentrations of the three banned neonics were similar or higher than concentrations found in birds monitored elsewhere before the ban. These findings raise questions about the persistence of neonics within the environment and the mode of exposure to wild fauna. Future investigations on the sublethal effects of these neonics on life-history traits of these farmland birds may help in providing a better understanding of the effects of exposure of bird populations to these insecticides, and also to the consequent effect on human health.
Disciplines :
Chemistry
Author, co-author :
Fuentes, Elva ;  UMR 7372, Centre d'Études Biologiques de Chizé, La Rochelle Université & CNRS, 79360 Villiers en Bois, France
Gaffard, Agathe ;  UMR 7372, Centre d'Études Biologiques de Chizé, La Rochelle Université & CNRS, 79360 Villiers en Bois, France
Rodrigues, Anaïs  ;  Université de Liège - ULiège > Molecular Systems (MolSys) ; Université de Strasbourg, CNRS-UMR 7515, ICPEES, 67087 Strasbourg cedex 2, France
Millet, Maurice;  Université de Strasbourg, CNRS-UMR 7515, ICPEES, 67087 Strasbourg cedex 2, France
Bretagnolle, Vincent;  UMR 7372, Centre d'Études Biologiques de Chizé, La Rochelle Université & CNRS, 79360 Villiers en Bois, France, LTSER "Zone Atelier Plaine & Val de Sèvre", CNRS, 79360 Villiers-en-Bois, France
Moreau, Jérôme;  UMR CNRS 6282 Biogéosciences, Équipe Écologie Évolutive, Université de Bourgogne-Franche-Comté, 21000 Dijon, France
Monceau, Karine ;  UMR 7372, Centre d'Études Biologiques de Chizé, La Rochelle Université & CNRS, 79360 Villiers en Bois, France. Electronic address: karine.monceau@univ-lr.fr
 These authors have contributed equally to this work.
Language :
English
Title :
Neonicotinoids: Still present in farmland birds despite their ban.
Publication date :
April 2023
Journal title :
Chemosphere
ISSN :
0045-6535
eISSN :
1879-1298
Publisher :
Elsevier Ltd, England
Volume :
321
Pages :
138091
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CNRS - Centre National de la Recherche Scientifique [FR]
Funding text :
This work was supported by the French National Research Agency (ANR JCJC PestiStress, grant # 19-CE34-0003-01 ), the French National Centre of Scientific Research ( CNRS ), the French National Research Institute for Agriculture, Food and the Environment ( INRAE ), and the University of La Rochelle . This study was partly funded by the BioBird project (regional government of Nouvelle-Aquitaine) , by the ACI (University of La Rochelle) , BIRDPEST project (RECOTOX 2019) , AgriBioBird project (OSU Theta ISITE-BFC) , the Contrat de Plan État-Région (CPER) Econat and the French National program EC2CO (Ecosphère Continentale et Côtière) .
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