Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees.
Colony size buffers interactions between neonicotinoid exposure and cold stress in bumblebees.
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DOI：
10.1098/rspb.2023.0555
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发表时间：
2023-07-26
影响因子：
4.7
通讯作者：
Crall, James D.
中科院分区：
文献类型：
--
作者：
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.
群居蜜蜂对支持全球生物多样性、生态系统功能和作物产量至关重要。蜂群大小是一个关键的生态特征，被预测会驱动对环境压力的敏感性，对于像大黄蜂这样每年有一个社会周期的物种来说可能尤其重要。然而，评估蜂群大小对环境压力敏感性的影响或这些影响背后的机制的经验证据有限。在这里，我们研究了大黄蜂的群体大小和对环境压力的敏感性之间的关系。我们将不同发育阶段的蜂群短暂暴露于一种常见的新烟碱（吡虫啉）和冷胁迫下（2天），同时对个体的行为进行量化。吡虫啉和冷暴露联用对小菌落的体温调节行为和长期菌落生长均有较强的影响。我们发现吡虫啉对行为的影响是由体温和巢内的空间位置介导的，这表明社会温度调节在大型蜂群中提供了缓冲作用。最后，我们在大小操纵的微菌落中证明了质量上类似的效应，表明群体大小本身，而不是菌落年龄，驱动这些模式。我们的研究结果提供了证据，证明菌落大小在驱动对压力源的敏感性方面至关重要，并可能有助于阐明农药暴露的复杂和特定环境影响的机制。
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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影响因子：
3.7
作者：
Gonzalez VH;Hranitz JM;McGonigle MB;Manweiler RE;Smith DR;Barthell JF
通讯作者：
Barthell JF
影响因子：
16.6
作者：
Crall, James D.;Gravish, Nick;Combes, Stacey A.
通讯作者：
Combes, Stacey A.
影响因子：
3.9
作者：
Davidson, Jacob D.;Gordon, Deborah M.
通讯作者：
Gordon, Deborah M.
影响因子：
8
作者：
Garrido-Jurado, S.;Munoz-Salinas, R.;Marin-Jimenez, M. J.
通讯作者：
Marin-Jimenez, M. J.
DOI：
10.1016/bs.aiip.2023.01.004
发表时间：
2023-01-01
期刊：
ENVIRONMENTAL THREATS TO POLLINATOR HEALTH AND FITNESS
影响因子：
--
作者：
Crall, James D.;Raine, Nigel E.
通讯作者：
Raine, Nigel E.