Bumble bees in landscapes with abundant floral resources have lower pathogen loads

Abstract The pollination services provided by bees are essential for supporting natural and agricultural ecosystems. However, bee population declines have been documented across the world. Many of the factors known to undermine bee health (e.g., poor nutrition) can decrease immunocompetence and, the...

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Autores principales:	Darin J. McNeil, Elyse McCormick, Ashley C. Heimann, Melanie Kammerer, Margaret R. Douglas, Sarah C. Goslee, Christina M. Grozinger, Heather M. Hines
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/cbedb271aa55435fb73ab048bfde53fe
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spelling	oai:doaj.org-article:cbedb271aa55435fb73ab048bfde53fe2021-12-02T13:34:11ZBumble bees in landscapes with abundant floral resources have lower pathogen loads10.1038/s41598-020-78119-22045-2322https://doaj.org/article/cbedb271aa55435fb73ab048bfde53fe2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78119-2https://doaj.org/toc/2045-2322Abstract The pollination services provided by bees are essential for supporting natural and agricultural ecosystems. However, bee population declines have been documented across the world. Many of the factors known to undermine bee health (e.g., poor nutrition) can decrease immunocompetence and, thereby, increase bees’ susceptibility to diseases. Given the myriad of stressors that can exacerbate disease in wild bee populations, assessments of the relative impact of landscape habitat conditions on bee pathogen prevalence are needed to effectively conserve pollinator populations. Herein, we assess how landscape-level conditions, including various metrics of floral/nesting resources, insecticides, weather, and honey bee (Apis mellifera) abundance, drive variation in wild bumble bee (Bombus impatiens) pathogen loads. Specifically, we screened 890 bumble bee workers from varied habitats in Pennsylvania, USA for three pathogens (deformed wing virus, black queen cell virus, and Vairimorpha (= Nosema) bombi), Defensin expression, and body size. Bumble bees collected within low-quality landscapes exhibited the highest pathogen loads, with spring floral resources and nesting habitat availability serving as the main drivers. We also found higher loads of pathogens where honey bee apiaries are more abundant, a positive relationship between Vairimorpha loads and rainfall, and differences in pathogens by geographic region. Collectively, our results highlight the need to support high-quality landscapes (i.e., those with abundant floral/nesting resources) to maintain healthy wild bee populations.Darin J. McNeilElyse McCormickAshley C. HeimannMelanie KammererMargaret R. DouglasSarah C. GosleeChristina M. GrozingerHeather M. HinesNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Darin J. McNeil Elyse McCormick Ashley C. Heimann Melanie Kammerer Margaret R. Douglas Sarah C. Goslee Christina M. Grozinger Heather M. Hines Bumble bees in landscapes with abundant floral resources have lower pathogen loads
description	Abstract The pollination services provided by bees are essential for supporting natural and agricultural ecosystems. However, bee population declines have been documented across the world. Many of the factors known to undermine bee health (e.g., poor nutrition) can decrease immunocompetence and, thereby, increase bees’ susceptibility to diseases. Given the myriad of stressors that can exacerbate disease in wild bee populations, assessments of the relative impact of landscape habitat conditions on bee pathogen prevalence are needed to effectively conserve pollinator populations. Herein, we assess how landscape-level conditions, including various metrics of floral/nesting resources, insecticides, weather, and honey bee (Apis mellifera) abundance, drive variation in wild bumble bee (Bombus impatiens) pathogen loads. Specifically, we screened 890 bumble bee workers from varied habitats in Pennsylvania, USA for three pathogens (deformed wing virus, black queen cell virus, and Vairimorpha (= Nosema) bombi), Defensin expression, and body size. Bumble bees collected within low-quality landscapes exhibited the highest pathogen loads, with spring floral resources and nesting habitat availability serving as the main drivers. We also found higher loads of pathogens where honey bee apiaries are more abundant, a positive relationship between Vairimorpha loads and rainfall, and differences in pathogens by geographic region. Collectively, our results highlight the need to support high-quality landscapes (i.e., those with abundant floral/nesting resources) to maintain healthy wild bee populations.
format	article
author	Darin J. McNeil Elyse McCormick Ashley C. Heimann Melanie Kammerer Margaret R. Douglas Sarah C. Goslee Christina M. Grozinger Heather M. Hines
author_facet	Darin J. McNeil Elyse McCormick Ashley C. Heimann Melanie Kammerer Margaret R. Douglas Sarah C. Goslee Christina M. Grozinger Heather M. Hines
author_sort	Darin J. McNeil
title	Bumble bees in landscapes with abundant floral resources have lower pathogen loads
title_short	Bumble bees in landscapes with abundant floral resources have lower pathogen loads
title_full	Bumble bees in landscapes with abundant floral resources have lower pathogen loads
title_fullStr	Bumble bees in landscapes with abundant floral resources have lower pathogen loads
title_full_unstemmed	Bumble bees in landscapes with abundant floral resources have lower pathogen loads
title_sort	bumble bees in landscapes with abundant floral resources have lower pathogen loads
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/cbedb271aa55435fb73ab048bfde53fe
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Bumble bees in landscapes with abundant floral resources have lower pathogen loads

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