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哺乳期最佳的温室温度不会改善长寿蝙蝠的身体状况
1Applied Zoology and Nature Conservation, Zoological Institute and Museum, University of Greifswald, Loitzer Straße 26, Greifswald 17489, Germany.
Biology letters
|October 23, 2024
概括
雌性蝙蝠不会改善它们的身体状况 (BC),当室温度降低哺乳期的能源成本时. 相反,节省的能量似乎被重新分配到增加的孕产妇护理,影响生殖策略.
科学领域:
- 哺乳动物生态学 哺乳动物生态
- 生殖生物学 生殖生物学
- 动物生理学 动物生理学
背景情况:
- 哺乳期是雌性哺乳动物的高能量时期,需要谨慎的能量管理才能获得繁殖成功.
- 全球变暖可能会改变温度调节成本,可能会影响孕产妇的能量预算和当前和未来生殖之间的权衡.
- 目前尚不清楚在更温暖的环境中降低的温度调节成本如何影响蝙蝠等长寿物种的母体能量分配.
研究的目的:
- 为了调查哺乳期贝克斯坦蝙蝠 (Myotis bechsteinii) 是否通过降低温度调节成本而节省的能量投入到自己的身体状态 (BC) 中.
- 为了确定是否人为地温暖蝙蝠到热中性区域影响母体能量分配策略.
主要方法:
- 对237只雌性贝克斯坦蝙蝠个体BC的14年数据集的分析.
- 使用无线电频率识别标签,在四个野生产妇殖民地跟踪单个蝙蝠.
- 比较来自有人工加热的殖民地母体的BC (降低温度调节成本) 与没有加热的对照殖民地.
主要成果:
- 在哺乳期后不久,从加热和不加热的中哺乳母亲之间没有观察到身体状况 (BC) 的显著差异.
- 通过降低温度调节成本而节省的能量并没有用于改善母亲自身的身体状况.
结论:
- 贝克斯坦蝙蝠似乎并没有利用从降低温度调节成本中节省的能量来提高哺乳期后自己的身体状况.
- 研究结果表明,节省的能量可能会被重新分配到增加对孕产妇护理的投资,这可能会影响母亲的生存和未来的生殖机会.
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