更薄的蝙蝠将面临冬眠,以应对气候变暖
Marc López-Roig1,2, Eduard Piera3, Jordi Serra-Cobo4,5
1Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 643, 08028, Barcelona, Spain. mlroig@gmail.com.
Scientific reports
|January 24, 2024
概括
气候变暖影响冬眠的蝙蝠,降低了它们的身体状况. 施赖伯的曲翅膀蝙蝠显示身体状况下降,但优化脂肪储备在不断变化的冬季条件下生存.
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
- 哺乳动物学 哺乳动物学
背景情况:
- 气候变暖通过改变冬眠条件,对冬眠的哺乳动物构成风险.
- 蝙蝠特别容易受到气候变化的影响,因为它们在冬眠期间对节能产生潜在影响.
- 关于蝙蝠如何受到气候变暖对冬眠的影响的影响和对气候变暖的影响做出反应的知识有限.
研究的目的:
- 为了研究气候变暖对冬眠的施赖伯曲翼蝙蝠 (Miniopterus schreibersii) 的身体状况和能量需求的影响.
- 在20年时间内,分析身体状况在关键冬眠阶段的时间趋势.
- 了解冬季温度,身体状况和这种蝙蝠物种的脂肪储备利用之间的关系.
主要方法:
- 对施赖伯曲翼蝙蝠身体状况的20年 (1998-2017) 数据集的分析.
- 在冬眠开始,结束和早期活动期间评估身体状况.
- 身体状况,质量损失率,冬季温度和零度以下的日子之间的相关性分析.
主要成果:
- 在20年的研究期间,在冬眠的开始和结束时观察到身体状况的显著下降.
- 在过去十年中,对减轻质量损失率的非显著趋势表明增加了脂肪储备的节约.
- 冬季气温的升高并没有对身体状况产生负面影响;然而,身体下部的状况与零度以下的日数增加有关.
- 在所有测量期间,雌性Schreiber的曲翼蝙蝠始终表现出比雄性更低的脂肪储量.
结论:
- 冬眠的能量需求可能是在施赖伯的曲翅膀蝙蝠适应变暖的气候.
- 尽管身体状况下降,冬眠的蝙蝠通过优化积累的脂肪储备的使用来证明冬季生存的能力.
- 这些发现突出了冬眠蝙蝠对气候变化的复杂反应,强调了能源管理中的适应性策略.
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