在三种带有被动温度调节的痛苦形中,首选的体温正在增加
Saúl F Domínguez-Guerrero1,2, Guillermo A Woolrich-Piña3, Martha M Muñoz1
1Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511, USA.
Integrative and comparative biology
|August 4, 2025
概括
被动温度调节在12-15年内将它们的首选温度提高约1°C. 这种调整是对它们在全球气温上升的背景下长期生存的担忧.
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
- 类学 类学 类学
背景情况:
- 环境温度上升和极端天气事件对外热动物产生负面影响.
- 被动温度调节器,缺乏行为温度调节,可以调整首选的温度来应对变暖.
- 有限的时间数据存在于野生被动温度调节器中偏好的温度变化.
研究的目的:
- 为了比较实验室热偏好跨年在三个热被动物种从墨西哥中部.
- 为了调查温度偏好的时间变化,以应对日益增长的热浪事件.
- 评估被动温度调节器对全球变暖的适应能力.
主要方法:
- 在实验室中,对三种进行了热偏好实验:Gerrhonotus liocephalus,Xenosaurus rectocollaris和Xenosaurus tzacualtipantecus.
- 热偏好被测量在两个时间段:2003-2004年和2016-2018年.
- 根据不同息地使用情况和暴露于有记录的热浪增加情况来选择物种.
主要成果:
- 这三种物种在12-15年的时间里,它们所喜欢的温度都增加了大约1°C.
- 这种观察到的转变表明,热量最佳的调整是为了应对环境变暖.
- 这些发现表明,被动温度调节器的热偏好趋势越来越强.
结论:
- 包括研究中的物种在内的被动温度调节器正在调整其热偏好以应对全球变暖.
- 这些调整可能对它们的生理性能至关重要,但也引起了人们对长期生存能力的担忧.
- 一种物种可能接近其生理热极限,影响其未来的生存.
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