来自智利南部的anurans的热性能和临界极限的内部和跨物种变化
Marcela A Vidal1, Enrico L Rezende2, Leonardo D Bacigalupe3
1Center of Ñuble Studies, Biodiversity and Global Change Research Group, Departament of Basic Sciences, Faculty of Sciences, Bío-Bío University, Av. Andrés Bello 720, Chillán, Chile.
Journal of thermal biology
|April 14, 2024
概括
两动物的热性能曲线显示了Eupsophus物种的热敏感性,尽管个体差异很大. 身体尺寸影响热耐受性和运动性能,这表明宽度和性能之间的权衡.
科学领域:
- 动物学 动物学
- 生态生态学 生态生态学
- 进化生物学 进化生物学
背景情况:
- 热性能曲线 (TPC) 描述了ectotherm对温度的反应.
- TPC参数在地理上有所不同,但物种和地点内的微小变化不太了解.
研究的目的:
- 在五种Eupsophus两动物物种中量化运动性能热敏度的个体和物种变化.
- 将Eupsophus的热性能与具有更广泛分布范围的同类物种进行比较.
- 调查身体尺寸对热性能和极限的影响.
主要方法:
- 测量了五种Eupsophus物种的五种温度的临界热极限和跳跃性能.
- 结果与Batrachyla taeniata和Rhinella spinulosa的数据进行了比较.
- 分析了身体尺寸,运动性能和热极限之间的关系.
主要成果:
- 活动的发动机性能和热窗口是狭窄的,在整个Eupsophus族系中相对保持.
- 在物种内部发现了运动能力的显著个体差异,在不同温度下个体表现一致.
- 建议在耐热宽度和运动性能之间进行权衡,可能由身体尺寸介导.
结论:
- 尤普索弗斯物种表现出保存的热反应,与范围更广的物种形成鲜明对比.
- 在物种内部存在个体性能变化,在不同温度下具有一致的个体性能.
- 身体大小影响热耐受性和性能,表明潜在的生态权衡.
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