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预测极度危的卡普塔尔岩 (Egernia roomi) 活动时间的可能气候变化

Daniel T Roberts¹, Martín Iglesias¹, Jules E Farquhar¹

¹School of Biological Sciences, Monash University, Clayton, Victoria, 3800, Australia.

Journal of thermal biology

|August 26, 2025

概括

像卡普塔尔岩石 (Egernia roomi) 这样的高海拔面临气候变化的威胁. 岩石裂提供了至关重要的热缓冲,

科学领域:

生态学
气候变化生物学
杂草学

背景情况:

由于范围有限且依赖外部温度,高海拔的热带植物对气候变化非常脆弱.
澳大利亚的山区和适应寒冷的动物特别容易受到气温上升的影响.
极度危的卡普塔尔岩石 (Egernia roomi) 是卡普塔尔山的特有物种,其热态生态尚不清楚.

研究的目的:

评估气候变化对Egernia roomi热活动的影响.
测量使用的岩石裂的热缓冲能力.
在未来的气候场景下,模拟活动时间的变化.

主要方法:

现场部署的操作温度模型被用来比较岩石裂中的热条件与暴露的微息地.
使用NicheMapR模拟体温,活动持续时间和水损失的生物物理建模.
目前和预测的气候条件 (例如,RCP8.5) 用于未来的场景建模.

主要成果:

岩石裂提供了显著的热缓冲,比白天暴露的表面低28°C.
NicheMapR模型的预测准确地反映了所观察到的温度.
根据未来的变暖情景,每日热活动时间的大幅增加 (根据RCP8.5到2090年达到+1.6小时).

结论:

岩石裂是Egernia roomi提供热庇护的重要息地.
在中等到高排放场景下,该物种可能会经历更长的活动期.
微型息地特征在确定山地湿地生物的气候变化脆弱性方面起着至关重要的作用.

关键词:

活动限制生物物理模型气候变化这里是NichemapR 爬行动物皮肤危物种

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