循环温度处理会影响草原 (Sceloporus consobrinus) 的消化性能估计
Allison R Litmer1, Steven J Beaupre1
1University of Arkansas, Department of Biological Sciences, 650 W. Dickson Street, Fayetteville, AR 72701, USA.
The Journal of experimental biology
|February 1, 2024
概括
生物在温度波动中的表现取决于不仅仅是平均热量. 温度顺序显著影响生理过程,挑战基于稳定的条件的预测.
科学领域:
- 生理生态生态学生理生态学
- 动物生理学 动物生理学
- 热调节 热调节 热调节
背景情况:
- 生物经常经历每天的温度波动.
- 从稳定的温度数据预测周期性环境中的生理性能可能是不准确的.
- 温度顺序和周期性可能会显著影响生物功能.
研究的目的:
- 为了在稳定和周期性温度条件下比较 (Sceloporus consobrinus) 的能量摄入量,消化途径时间和能量预算.
- 为了确定稳定的温度处理是否足够预测在波动的环境中的性能.
- 评估温度顺序对生理性能的影响.
主要方法:
- 被暴露在稳定的温度 (33°C) 和两次每日温度周期 (平均33°C) 中,温度顺序不同 (温暖的日子/凉爽的夜晚与凉爽的日子/温暖的夜晚).
- 测量了关键的生理指标,包括能量摄入量,消化道通行时间和能量预算.
- 稳定治疗的性能数据与循环治疗的数据进行了比较.
主要成果:
- 在不同的温度处理中,生理性能显著变化.
- 在稳定条件和一个周期之间,能源摄入量和预算是可比的,而不是另一个周期.
- 消化道的通路时间在治疗之间没有显著差异.
- 这两种周期性温度模式显示出不同的性能结果,突出显示了温度顺序的重要性.
结论:
- 稳定的温度条件并不总是代表周期性环境中的生理性能.
- 经历温度的顺序在调节生理性能方面起着至关重要的作用.
- 未来的研究和生理数据收集必须考虑温度循环和热暴露序列的细微差别.
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