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Updated: Feb 18, 2026

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短时间飞行的成本是昆虫食蝙蝠的长时间飞行活动的三倍
Lucas J S Greville1, Jade Legros2,3, Paul A Faure4
1Department of Biology, University of Waterloo, Waterloo, ON, Canada.
The Journal of experimental biology
|February 17, 2026
概括
蝙蝠的飞行代谢率随着飞行时间的延长而显著下降. 这项研究揭示了代谢过渡,显示较长的航班相比,短时间的能量消耗较高,影响食和能量模型.
科学领域:
- 生理学 生理学 生理学
- 生物能源学 生物能源学
- 动物的运动 动物的运动
背景情况:
- 飞行动物在飞行过程中代谢率很高,但飞行时间的影响尚不清楚.
- 现有的模型往往忽略了蝙蝠在飞行过程中随着时间的推移所做的代谢调整.
研究的目的:
- 为了研究飞行时间和蝙蝠的代谢率之间的关系.
- 为了测试从短时间爆发到更长时间飞行的代谢过渡的假设.
主要方法:
- 调整了二碳酸同位素追踪仪方法来测量飞行代谢率.
- 在长达11分钟的飞行时间内测量大棕色蝙蝠 (Eptesicus fuscus) 的新陈代谢率 (V·CO2).
主要成果:
- 观察到在飞行的前6分钟左右,新陈代谢率显著下降.
- 代谢率出现了三倍的下降,预测的最低V·CO2为2.48±0.65毫升/分钟.
结论:
- 蝙蝠的飞行代谢率取决于飞行时间,从短途飞行中的更高速率过渡到持续飞行中的更低速率.
- 这些发现需要对能量预算模型和哺乳动物运动生理学进行修订,这对理解食策略和进化权衡产生影响.
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