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升温到一个新的外套:化王企表现出高热和增加的外围热量损失
Juan D Zuluaga1,2, Emmanuel Pretti3, Aude Leynaert3
1Department of Biology and Marine Biology, University of North Carolina Wilmington, Wilmington, North Carolina, United States.
概括
由于热量产生和绝缘的增加,化企会经历高热症. 这项研究发现,王企 (Aptenodytes patagonicus) 在变过程中表现出受调节的高温症,这可能会影响它们在变暖环境中对热应激的敏感性.
科学领域:
- 生理学 生理学 生理学
- 热调节 热调节 热调节
- 动物生态动物生态学
背景情况:
- 企在水生环境中拥有专门的温度调节,这可能会给陆地散热带来挑战.
- 化是企的陆地阶段,其特点是代谢热量产生和绝缘的增加,可能导致热应激.
研究的目的:
- 通过测试与热挑战和调节过热有关的假设,评估王企 (Aptenodytes patagonicus) 的热调节.
- 调查变期间的生理反应,特别是核心和表面温度变化以及外围散热机制.
主要方法:
- 在整个移期内,同时测量移期间在被囚禁的王企中核心和表面温度.
- 捕获和野生个体之间的温度模式的比较,以了解对温度调节的行为影响.
主要成果:
- 核心和表面温度在变过程中同时增加,为调节过热 ("升温假说") 提供了初步支持.
- 的企没有出现喘气,这表明足够的外围散热来控制高热.
- 野生企的温度模式反映了被囚禁的个体,尽管环境条件和行为温度调节选项不同.
结论:
- 热量过高是王企中普遍存在的疾病,有证据支持体温的调节性增加.
- 化引起的高温症可能会加剧热量负荷,增加野生企对热应激的脆弱性,特别是在快速变暖的极地地区.
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