Are mountaintops climate refugia for plants under global warming? A lesson from high-mountain oaks in tropical rainforest

IF 2.6 3区 生物学 Q2 PLANT SCIENCES
Hong-Hu Meng, Shi-Shun Zhou, Xiao-Long Jiang, Paul F. Gugger, Lang Li, Yun-Hong Tan, Jie Li
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引用次数: 15

Abstract

Climate refugia are locations where plants are able to survive periods of regionally adverse climate. Such refugia may affect evolutionary processes and the maintenance of biodiversity. Numerous refugia have been identified in the context of Quaternary climate oscillations. With climate warming, there is an increasing need to apply insights from the past to characterize potential future refugia. Mountainous regions, due to the provision of spatially heterogeneous habitats, may contain high biodiversity, particularly important during climate oscillations. Here, we highlight the importance of mountaintops as climate refugia, using the example of high-mountain oaks which are distributed on the ranges of the Himalaya–Hengduan Mountains, and at high elevations in tropical rainforests. The occurrences of cold-adapted high-mountain oaks on mountaintops amidst tropical rainforest indicate that such locations are and will be climate refugia as global warming continues. We examine factors that predict the occurrence of future climate refugia on mountaintops using recognized historical refugia. Future research is needed to elucidate the fine-scale processes and particular geographic locations that buffer species against the rapidly changing climate to guide biodiversity conservation efforts under global warming scenarios.

在全球变暖的情况下,山顶是植物的气候避难所吗?热带雨林高山橡树的教训
气候避难所是植物能够在区域性不利气候时期生存的地方。这种避难所可能会影响进化过程和生物多样性的维持。在第四纪气候振荡的背景下,已经发现了许多避难所。随着气候变暖,越来越需要应用过去的见解来描述未来潜在的避难所。由于提供了空间异质的栖息地,山区可能具有高度的生物多样性,在气候波动期间尤为重要。在这里,我们以分布在喜马拉雅山脉-横断山脉和热带雨林高海拔地区的高山橡树为例,强调了山顶作为气候避难所的重要性。热带雨林中山顶上出现的适应寒冷的高山橡树表明,随着全球变暖的持续,这些地方现在和将来都是气候避难所。我们使用公认的历史避难所来研究预测未来山顶气候避难所发生的因素。未来的研究需要阐明缓冲物种对抗快速变化的气候的精细过程和特定地理位置,以指导全球变暖情景下的生物多样性保护工作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Alpine Botany
Alpine Botany PLANT SCIENCES-
CiteScore
5.10
自引率
18.50%
发文量
15
审稿时长
>12 weeks
期刊介绍: Alpine Botany is an international journal providing a forum for plant science studies at high elevation with links to fungal and microbial ecology, including vegetation and flora of mountain regions worldwide.
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