Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration

Abstract The effects of agricultural pesticide exposure upon honey bee colonies is of increasing interest to beekeepers and researchers, and the impact of neonicotinoid pesticides in particular has come under intense scrutiny. To explore potential colony-level effects of a neonicotinoid pesticide at...

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Autores principales:	William G. Meikle, John J. Adamczyk, Milagra Weiss, Janie Ross, Chris Werle, Eli Beren
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ed30551d314c4727bb41c0a452f293d4
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spelling	oai:doaj.org-article:ed30551d314c4727bb41c0a452f293d42021-12-02T16:23:14ZSublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration10.1038/s41598-021-83958-82045-2322https://doaj.org/article/ed30551d314c4727bb41c0a452f293d42021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83958-8https://doaj.org/toc/2045-2322Abstract The effects of agricultural pesticide exposure upon honey bee colonies is of increasing interest to beekeepers and researchers, and the impact of neonicotinoid pesticides in particular has come under intense scrutiny. To explore potential colony-level effects of a neonicotinoid pesticide at field-relevant concentrations, honey bee colonies were fed 5- and 20-ppb concentrations of clothianidin in sugar syrup while control colonies were fed unadulterated syrup. Two experiments were conducted in successive years at the same site in southern Arizona, and one in the high rainfall environment of Mississippi. Across all three experiments, adult bee masses were about 21% lower among colonies fed 20-ppb clothianidin than the untreated control group, but no effects of treatment on brood production were observed. Average daily hive weight losses per day in the 5-ppb clothianidin colonies were about 39% lower post-treatment than in the 20-ppb clothianidin colonies, indicating lower consumption and/or better foraging, but the dry weights of newly-emerged adult bees were on average 6–7% lower in the 5-ppb group compared to the other groups, suggesting a nutritional problem in the 5-ppb group. Internal hive CO2 concentration was higher on average in colonies fed 20-ppb clothianidin, which could have resulted from greater CO2 production and/or reduced ventilating activity. Hive temperature average and daily variability were not affected by clothianidin exposure but did differ significantly among trials. Clothianidin was found to be, like imidacloprid, highly stable in honey in the hive environment over several months.William G. MeikleJohn J. AdamczykMilagra WeissJanie RossChris WerleEli BerenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q William G. Meikle John J. Adamczyk Milagra Weiss Janie Ross Chris Werle Eli Beren Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
description	Abstract The effects of agricultural pesticide exposure upon honey bee colonies is of increasing interest to beekeepers and researchers, and the impact of neonicotinoid pesticides in particular has come under intense scrutiny. To explore potential colony-level effects of a neonicotinoid pesticide at field-relevant concentrations, honey bee colonies were fed 5- and 20-ppb concentrations of clothianidin in sugar syrup while control colonies were fed unadulterated syrup. Two experiments were conducted in successive years at the same site in southern Arizona, and one in the high rainfall environment of Mississippi. Across all three experiments, adult bee masses were about 21% lower among colonies fed 20-ppb clothianidin than the untreated control group, but no effects of treatment on brood production were observed. Average daily hive weight losses per day in the 5-ppb clothianidin colonies were about 39% lower post-treatment than in the 20-ppb clothianidin colonies, indicating lower consumption and/or better foraging, but the dry weights of newly-emerged adult bees were on average 6–7% lower in the 5-ppb group compared to the other groups, suggesting a nutritional problem in the 5-ppb group. Internal hive CO2 concentration was higher on average in colonies fed 20-ppb clothianidin, which could have resulted from greater CO2 production and/or reduced ventilating activity. Hive temperature average and daily variability were not affected by clothianidin exposure but did differ significantly among trials. Clothianidin was found to be, like imidacloprid, highly stable in honey in the hive environment over several months.
format	article
author	William G. Meikle John J. Adamczyk Milagra Weiss Janie Ross Chris Werle Eli Beren
author_facet	William G. Meikle John J. Adamczyk Milagra Weiss Janie Ross Chris Werle Eli Beren
author_sort	William G. Meikle
title	Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
title_short	Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
title_full	Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
title_fullStr	Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
title_full_unstemmed	Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration
title_sort	sublethal concentrations of clothianidin affect honey bee colony growth and hive co2 concentration
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ed30551d314c4727bb41c0a452f293d4
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Sublethal concentrations of clothianidin affect honey bee colony growth and hive CO2 concentration

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