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| DOI | 10.1093/conphys/coae006 |
| Handling heatwaves: balancing thermoregulation, foraging and bumblebee colony success | |
| 发表日期 | 2024 |
| ISSN | 2051-1434 |
| 起始页码 | 12 |
| 结束页码 | 1 |
| 卷号 | 12期号:1 |
| 英文摘要 | Climate changes pose risks for bumblebee populations, which have declined relative to the growing frequency and severity of warmer temperature extremes. Bumblebees might mitigate the effects of such extreme weather through colonial behaviours. In particular, fanning behaviour to dissipate heat is an important mechanism that could reduce exposure of thermally sensitive offspring to detrimental nest temperatures (Tn). The allocation of workers towards fanning over prolonged periods could impact foraging activity that is essential for colony-sustaining resource gathering. Colony maintenance and growth could suffer as a result of nutritional and high ambient temperature (Ta) thermal stress. It remains uncertain whether a compromise occurs between thermoregulation and foraging under chronic, sublethal heat events and how colony success is impacted as a result. This study held colonies of Bombus impatiens at constant high Ta (25 degrees C, 30 degrees C or 35 degrees C) for 2 weeks while quantifying the percentage of foragers, fanning incidence, nest temperature (Tn) and other metrics of colony success such as the percentage of adult emergence and offspring production. We found that foraging and adult emergence were not significantly affected by Ta, but that thermoregulation was unsuccessful at maintaining Tn despite increased fanning at 35 degrees C. Furthermore, 35 degrees C resulted in workers abandoning the colony and fewer offspring being produced. Our findings imply that heatwave events that exceed 30 degrees C can negatively impact colony success through failed thermoregulation and reduced workforce production. |
| 英文关键词 | Bombus; bumblebee colonies; castes; chronic heat stress; foraging; Heat tolerance; thermoregulation |
| 语种 | 英语 |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology ; Physiology |
| WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences ; Physiology |
| WOS记录号 | WOS:001157809200001 |
| 来源期刊 | CONSERVATION PHYSIOLOGY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/297850 |
| 作者单位 | University of Ottawa |
| 推荐引用方式 GB/T 7714 | . Handling heatwaves: balancing thermoregulation, foraging and bumblebee colony success[J],2024,12(1). |
| APA | (2024).Handling heatwaves: balancing thermoregulation, foraging and bumblebee colony success.CONSERVATION PHYSIOLOGY,12(1). |
| MLA | "Handling heatwaves: balancing thermoregulation, foraging and bumblebee colony success".CONSERVATION PHYSIOLOGY 12.1(2024). |
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