气候变化带来的热浪对新生森林蝙蝠构成致命的风险
Danilo Russo1, Anne Mäenurm2, Luca Cistrone1
1Laboratory of Animal Ecology and Evolution (AnEcoEvo), Dipartimento di Agraria Università degli Studi di Napoli Federico II Napoli Italy.
Ecology and evolution
|May 15, 2025
概括
热浪正在导致温带森林蝙蝠的死亡,比如常见的夜 (Nyctalus noctula). 分裂的森林可能会增加蝙蝠对热应激的脆弱性,并充当生态陷.
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
- 保护生物学 保护生物学
背景情况:
- 气候变化增加了热浪等极端天气事件,对生物多样性构成风险.
- 热应激会影响动物,特别是那些温度调节能力有限的动物.
- 以前关于蝙蝠热浪死亡率的研究集中在飞狐和居住在城市的物种上,而不是温带森林蝙蝠.
研究的目的:
- 展示温带森林蝙蝠中与热浪相关的死亡率的第一个证据.
- 调查极端高温对意大利东北部常见夜 (Nyctalus noctula) 的影响.
主要方法:
- 现场工作在意大利东北部弗里乌利-朱利雅威尼西亚的一个森林片段进行,在2023年和2024年的夏季.
- 在热浪期间 (Tmax ≥30°C) 在树底部发现的死幼蝙蝠的识别.
- 实验室尸体解剖以确定死亡原因,包括检查病毒感染和养证据.
主要成果:
- 在热浪期间,发现了17只死去的幼年常见夜.
- 尸体解剖表明与热有关的压力是死亡原因;没有检测到病毒感染.
- 观察到的死亡率可能低估了实际影响,因为在森林环境中难以找到尸体.
结论:
- 这项研究为温带森林蝙蝠中热浪引起的死亡率提供了第一个证据.
- 蝙蝠种群,特别是常见的夜,容易受到热浪的影响,特别是在分散的森林息地.
- 森林的碎片化可能会增加热应激暴露,并导致所作为蝙蝠的生态陷.
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