类似热浪的事件会影响大黄蜂的无人机生产和繁殖护理行为
Yanet Sepúlveda1, Elizabeth Nicholls1, Wiebke Schuett1
1School of Life Sciences, University of Sussex, Falmer, Brighton, United Kingdom.
PeerJ
|March 26, 2024
概括
模拟的热浪影响了大黄蜂 (Bombus terrestris audax) 的表现,但没有影响生存率. 温和的热浪促进了后代的生产,而极端的热浪增加了温度调节行为,如翼扇.
科学领域:
- 生态生态学 生态生态学
- 气候变化生物学 气候变化生物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 气候变化增加了像热浪这样的极端天气事件.
- 热浪给授粉者带来了巨大的压力,影响了他们的表现和生存.
- 在生态和经济上,Bombus terrestris audax是重要的昆虫授粉者.
研究的目的:
- 研究模拟热浪对没有女王的Bombus terrestris audax.小殖民地的影响.
- 评估不同强度的热浪对大黄蜂生存,后代生产和繁殖护理行为的影响.
- 评估微殖民地对研究极端天气事件对授粉者影响的实用性.
主要方法:
- 利用实验室条件模拟不同强度的热浪 (温和: 30-32°C,极端: 34-36°C) 和对照 (24°C).
- 在5天的时间里,监测了Bombus terrestris audax的没有女王的微殖民地.
- 量化生存率,后代产量和繁殖护理行为,特别是翼扇.
主要成果:
- 热浪显著影响了大黄蜂的表现,但没有影响生存率.
- 温和的热浪 (30-32°C) 与极端的热浪 (34-36°C) 和对照条件相比,导致后代产量增加.
- 繁殖群的护理行为,如翼扇,随着更高的热浪温度而显著增加,这表明了温度调节反应.
结论:
- 蜂群的表现对热浪的大小很敏感,温和的热浪可能会刺激繁殖.
- 微殖民地作为有效的模型来研究极端天气对授粉者的影响.
- 进一步的实地研究对于了解现实世界授粉者弹性和易受气候变化引起的热浪的脆弱性至关重要.
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