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Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees

Social bees are critical for supporting biodiversity, ecosystem function and crop yields globally. Colony size is a key ecological trait predicted to drive sensitivity to environmental stressors and may be especially important for species with annual cycles of sociality, such as bumblebees. However,...

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Autores principales: Easton-Calabria, August C., Thuma, Jessie A., Cronin, Kayleigh, Melone, Gigi, Laskowski, Madalyn, Smith, Matthew A. Y., Pasadyn, Cassandra L., de Bivort, Benjamin L., Crall, James D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10354472/
https://www.ncbi.nlm.nih.gov/pubmed/37464757
http://dx.doi.org/10.1098/rspb.2023.0555
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author Easton-Calabria, August C.
Thuma, Jessie A.
Cronin, Kayleigh
Melone, Gigi
Laskowski, Madalyn
Smith, Matthew A. Y.
Pasadyn, Cassandra L.
de Bivort, Benjamin L.
Crall, James D.
author_facet Easton-Calabria, August C.
Thuma, Jessie A.
Cronin, Kayleigh
Melone, Gigi
Laskowski, Madalyn
Smith, Matthew A. Y.
Pasadyn, Cassandra L.
de Bivort, Benjamin L.
Crall, James D.
author_sort Easton-Calabria, August C.
collection PubMed
description Social bees are critical for supporting biodiversity, ecosystem function and crop yields globally. Colony size is a key ecological trait predicted to drive sensitivity to environmental stressors and may be especially important for species with annual cycles of sociality, such as bumblebees. However, there is limited empirical evidence assessing the effect of colony size on sensitivity to environmental stressors or the mechanisms underlying these effects. Here, we examine the relationship between colony size and sensitivity to environmental stressors in bumblebees. We exposed colonies at different developmental stages briefly (2 days) to a common neonicotinoid (imidacloprid) and cold stress, while quantifying behaviour of individuals. Combined imidacloprid and cold exposure had stronger effects on both thermoregulatory behaviour and long-term colony growth in small colonies. We find that imidacloprid's effects on behaviour are mediated by body temperature and spatial location within the nest, suggesting that social thermoregulation provides a buffering effect in large colonies. Finally, we demonstrate qualitatively similar effects in size-manipulated microcolonies, suggesting that group size per se, rather than colony age, drives these patterns. Our results provide evidence that colony size is critical in driving sensitivity to stressors and may help elucidate mechanisms underlying the complex and context-specific impacts of pesticide exposure.
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spelling pubmed-103544722023-07-20 Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees Easton-Calabria, August C. Thuma, Jessie A. Cronin, Kayleigh Melone, Gigi Laskowski, Madalyn Smith, Matthew A. Y. Pasadyn, Cassandra L. de Bivort, Benjamin L. Crall, James D. Proc Biol Sci Behaviour Social bees are critical for supporting biodiversity, ecosystem function and crop yields globally. Colony size is a key ecological trait predicted to drive sensitivity to environmental stressors and may be especially important for species with annual cycles of sociality, such as bumblebees. However, there is limited empirical evidence assessing the effect of colony size on sensitivity to environmental stressors or the mechanisms underlying these effects. Here, we examine the relationship between colony size and sensitivity to environmental stressors in bumblebees. We exposed colonies at different developmental stages briefly (2 days) to a common neonicotinoid (imidacloprid) and cold stress, while quantifying behaviour of individuals. Combined imidacloprid and cold exposure had stronger effects on both thermoregulatory behaviour and long-term colony growth in small colonies. We find that imidacloprid's effects on behaviour are mediated by body temperature and spatial location within the nest, suggesting that social thermoregulation provides a buffering effect in large colonies. Finally, we demonstrate qualitatively similar effects in size-manipulated microcolonies, suggesting that group size per se, rather than colony age, drives these patterns. Our results provide evidence that colony size is critical in driving sensitivity to stressors and may help elucidate mechanisms underlying the complex and context-specific impacts of pesticide exposure. The Royal Society 2023-07-26 2023-07-19 /pmc/articles/PMC10354472/ /pubmed/37464757 http://dx.doi.org/10.1098/rspb.2023.0555 Text en © 2023 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Behaviour
Easton-Calabria, August C.
Thuma, Jessie A.
Cronin, Kayleigh
Melone, Gigi
Laskowski, Madalyn
Smith, Matthew A. Y.
Pasadyn, Cassandra L.
de Bivort, Benjamin L.
Crall, James D.
Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
title Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
title_full Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
title_fullStr Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
title_full_unstemmed Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
title_short Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
title_sort colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees
topic Behaviour
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10354472/
https://www.ncbi.nlm.nih.gov/pubmed/37464757
http://dx.doi.org/10.1098/rspb.2023.0555
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