环蛇的可塑性和区域异热度的上热耐受性
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Updated: Jan 7, 2026

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Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles
Published on: April 7, 2021
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Christian L Cox1, Kelly Lin Wuthrich2, Dareen Aloudeh3
1Department of Biological Sciences and Institute of Environment, Florida International University, Miami, FL, United States; Mountain Lake Biological Station, The University of Virginia, Pembroke, VA, United States.
Journal of thermal biology
|December 24, 2025
概括
温和的蛇表现出适应的上热耐受性 (VTmax),即使在短时间的温暖暴露. 身体温度的区域差异影响了这种可塑性如何测量,影响了气候变化适应研究.
科学领域:
- 生态生态学 生态生态学
- 生理学 生理学 生理学
- 进化生物学 进化生物学
背景情况:
- 在热耐受性方面,表型可塑性对于面临环境变化的ectotherms至关重要.
- 区域性异热性,即身体部位的温度不同,在ectotherms中很常见,但其对热耐受性可塑性的影响尚不清楚.
- 了解耐热可塑性对于预测ectotherm对气候变化的反应至关重要.
研究的目的:
- 为了研究暴露在高温下的环蛇 (Diadophis punctatus) 上方热耐性的可塑性.
- 确定区域异热能是否影响热承受度的测量和可塑性.
- 评估这些发现对ectotherm适应环境变化的影响.
主要方法:
- 在环蛇中测量的自愿热最大值 (VTmax).
- 在30°C或34°C的温度下化蛇1或3小时以诱导热应激.
- 在热暴露后重新测量VTmax,比较口腔和水温度.
主要成果:
- 环蛇在短时间,温和的温暖暴露后,在VTmax中表现出可塑性.
- 口腔温度的VTmax显著高于cloaca温度.
- 口腔VTmax显示出较少的可塑性,与水VTmax相比.
结论:
- 温带生态热物,如环蛇,可以在上热耐受性表现出可塑性.
- 温度测量的位置 (口腔与水管) 显著影响区域异热性物种的热耐性可塑性的解释.
- 热耐性可塑性的区域差异可能会影响生态热生物对快速环境变化和变暖气候的反应.
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