Neonicotinoid pesticides exert metabolic effects on avian pollinators

Abstract Neonicotinoids are neurotoxic systemic insecticides applied extensively worldwide. The impacts of common neonicotinoids like imidacloprid on non-target invertebrate pollinators have been widely studied, however effects on vertebrate pollinators have received little attention. Here, we descr...

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Autores principales:	Simon G. English, Natalia I. Sandoval-Herrera, Christine A. Bishop, Melissa Cartwright, France Maisonneuve, John E. Elliott, Kenneth C. Welch
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/468b20a7a08e402b9950da510abea166
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spelling	oai:doaj.org-article:468b20a7a08e402b9950da510abea1662021-12-02T14:06:57ZNeonicotinoid pesticides exert metabolic effects on avian pollinators10.1038/s41598-021-82470-32045-2322https://doaj.org/article/468b20a7a08e402b9950da510abea1662021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82470-3https://doaj.org/toc/2045-2322Abstract Neonicotinoids are neurotoxic systemic insecticides applied extensively worldwide. The impacts of common neonicotinoids like imidacloprid on non-target invertebrate pollinators have been widely studied, however effects on vertebrate pollinators have received little attention. Here, we describe the first study evaluating the effects of short-term (3 d) exposure to a range of environmentally relevant concentrations ( $${0.2}\,\upmu \hbox {g g}^{-1}$$ 0.2 μ g g - 1 to $${2.5}\,\upmu \hbox {g g}^{-1}\cdot$$ 2.5 μ g g - 1 · Body Weight) of imidacloprid on wild-caught ruby-throated hummingbirds. Within 2 h of exposure, hummingbirds exhibited a significant depression in energy expenditure (up to $$25\% \pm 11\%$$ 25 % ± 11 % ). We did not observe significant effects on foraging behaviour measured in the subsequent 2 h to 4 h, although the effect size estimate was large (0.29). We also analyzed tissues collected 24 h after the final dose and did not observe significant effects on immune response or cholinesterase activity, although this may be related to our small sample size. We determined that hummingbirds excrete imidacloprid quickly (elimination half-life of $$2.1\hbox { h} \pm 0.1\hbox { h}$$ 2.1 h ± 0.1 h ) relative to other bird species. Hummingbirds have high energetic demands and store relatively little energy, especially during migration and breeding seasons. Therefore, changes in their metabolism following exposures to imidacloprid observed herein could bear important survivorship consequences for hummingbirds.Simon G. EnglishNatalia I. Sandoval-HerreraChristine A. BishopMelissa CartwrightFrance MaisonneuveJohn E. ElliottKenneth C. WelchNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Simon G. English Natalia I. Sandoval-Herrera Christine A. Bishop Melissa Cartwright France Maisonneuve John E. Elliott Kenneth C. Welch Neonicotinoid pesticides exert metabolic effects on avian pollinators
description	Abstract Neonicotinoids are neurotoxic systemic insecticides applied extensively worldwide. The impacts of common neonicotinoids like imidacloprid on non-target invertebrate pollinators have been widely studied, however effects on vertebrate pollinators have received little attention. Here, we describe the first study evaluating the effects of short-term (3 d) exposure to a range of environmentally relevant concentrations ( $${0.2}\,\upmu \hbox {g g}^{-1}$$ 0.2 μ g g - 1 to $${2.5}\,\upmu \hbox {g g}^{-1}\cdot$$ 2.5 μ g g - 1 · Body Weight) of imidacloprid on wild-caught ruby-throated hummingbirds. Within 2 h of exposure, hummingbirds exhibited a significant depression in energy expenditure (up to $$25\% \pm 11\%$$ 25 % ± 11 % ). We did not observe significant effects on foraging behaviour measured in the subsequent 2 h to 4 h, although the effect size estimate was large (0.29). We also analyzed tissues collected 24 h after the final dose and did not observe significant effects on immune response or cholinesterase activity, although this may be related to our small sample size. We determined that hummingbirds excrete imidacloprid quickly (elimination half-life of $$2.1\hbox { h} \pm 0.1\hbox { h}$$ 2.1 h ± 0.1 h ) relative to other bird species. Hummingbirds have high energetic demands and store relatively little energy, especially during migration and breeding seasons. Therefore, changes in their metabolism following exposures to imidacloprid observed herein could bear important survivorship consequences for hummingbirds.
format	article
author	Simon G. English Natalia I. Sandoval-Herrera Christine A. Bishop Melissa Cartwright France Maisonneuve John E. Elliott Kenneth C. Welch
author_facet	Simon G. English Natalia I. Sandoval-Herrera Christine A. Bishop Melissa Cartwright France Maisonneuve John E. Elliott Kenneth C. Welch
author_sort	Simon G. English
title	Neonicotinoid pesticides exert metabolic effects on avian pollinators
title_short	Neonicotinoid pesticides exert metabolic effects on avian pollinators
title_full	Neonicotinoid pesticides exert metabolic effects on avian pollinators
title_fullStr	Neonicotinoid pesticides exert metabolic effects on avian pollinators
title_full_unstemmed	Neonicotinoid pesticides exert metabolic effects on avian pollinators
title_sort	neonicotinoid pesticides exert metabolic effects on avian pollinators
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/468b20a7a08e402b9950da510abea166
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Neonicotinoid pesticides exert metabolic effects on avian pollinators

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