Publication: First detection of thiamethoxam in a free-ranging insectivorous bird after its agricultural use ban in Spain.
Authors
Klaas Fábregas, Marina ; Fernández Gómez, Lola ; Alfonso i Prieto, Jesús ; Garrido, Isabel ; Cava, Juana ; Martínez Escudero, Carmen M. ; Fenoll, José ; Pérez García, Juan M. ; Insecticide ; Gómez Ramírez, Pilar
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Publisher
Oxford Academy
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DOI
https://doi.org/10.1002/etc.5899
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info:eu-repo/semantics/article
Description
© 2024 The Authors. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/
This document is the Published Manuscript version of a Published Work that appeared in final form in Environmental Toxicology and Chemistry . To access the final edited and published work see https://doi.org/10.1002/etc.5899
Abstract
Neonicotinoids are insecticides used worldwide in phytosanitary and biocidal products and veterinary pharma-
ceuticals. Recently, some restrictions and bans have been imposed due to their adverse effects on nontarget invertebrates,
including pollinators. Although they may have direct and indirect effects on wild vertebrates, few studies have assessed
exposure to these compounds in wild birds, so our knowledge remains limited. In the present pilot study we have assessed
the prevalence of seven neonicotinoid insecticides and some of their metabolites in whole blood samples from 19 European
roller (Coracias garrulus) nestlings and five adult common kestrels (Falco tinnunculus) in an area treated with neonicotinoids
to control the palm weevil (Rynchophorus ferrugineus) in southeastern Spain. One European roller nestling born in a palm
tree was positive for thiamethoxam, with a concentration of 2.26 ng mL−1
, but no residues of neonicotinoids or their me-
tabolites were found in adult common kestrels. Future studies are needed to elucidate potential exposure to neonicotinoids
at different times of the year. To our knowledge, this is the first report of the presence of thiamethoxam residues in whole
blood of a wild bird species after its ban in Spain.
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Citation
Environmental Toxicology and Chemistry, 2024, Vol. 43, Issue 8, pp. 1836–1843
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