熊蜂在温度上升时的温度调节受行为状态的影响
Guadalupe Sepúlveda-Rodríguez1, Kevin T Roberts1, Priscila Araújo1
1Department of Zoology, Stockholm University, Stockholm, 11418, Sweden.
Journal of thermal biology
|April 11, 2024
概括
气温上升会影响大黄蜂的温度调节. 熊蜂根据行为调节体温,有证据表明热量转移用于飞行,显示可适应的热调节.
科学领域:
- 昆虫生理学 昆虫生理学
- 环境生物学环境生物学
- 热调节 热调节 热调节
背景情况:
- 全球气温上升与昆虫种群减少有关.
- 像熊蜂这样的内热热昆虫具有适用于寒冷气候的温度调节能力.
- 气温上升对大黄蜂温度调节的影响尚不清楚.
研究的目的:
- 为了研究大黄蜂 (Bombus terrestris) 在不同温度和行为的温度调节.
- 了解环境温度如何影响大黄蜂的体温.
- 为了确定熊蜂是否表现出塑性和行为依赖的温度调节反应.
主要方法:
- 测量大黄蜂工人的头部,胸部和腹部温度.
- 在24°C至32°C的温度范围内进行测量.
- 观察大黄蜂在休息,飞前和飞后的行为.
主要成果:
- 休息的熊蜂的体温与环境温度相匹配.
- 飞行前的熊蜂显示头部和腹部温度升高,表明肌肉变暖.
- 飞行后的熊蜂表明腹部温度随环境温度增加,而头部和胸部则没有.
- 从胸部到腹部的热量转移有助于飞行期间的温度调节.
- 飞行速度和食活动随着温度的增加而增加.
结论:
- 熊蜂的温度调节是塑性的,并且取决于行为.
- 熊蜂在飞行期间积极管理热传递以进行温度调节.
- 尽管对性能有影响,但大黄蜂仍在继续寻找食物,并在更高的温度下飞行.
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