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Warming alters plant phylogenetic and functional community structure
Journal of Ecology ( IF 5.3 ) Pub Date : 2020-06-15 , DOI: 10.1111/1365-2745.13448 Juntao Zhu 1, 2 , Yangjian Zhang 1, 3, 4 , Xian Yang 2 , Ning Chen 1 , Shaopeng Li 5, 6 , Pandeng Wang 2, 7 , Lin Jiang 2
中文翻译：
气候变暖改变了植物的系统发育和功能群落结构
更新日期：2020-06-15
Journal of Ecology ( IF 5.3 ) Pub Date : 2020-06-15 , DOI: 10.1111/1365-2745.13448 Juntao Zhu 1, 2 , Yangjian Zhang 1, 3, 4 , Xian Yang 2 , Ning Chen 1 , Shaopeng Li 5, 6 , Pandeng Wang 2, 7 , Lin Jiang 2
Affiliation
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- Climate change is known to affect many facets of the Earth's ecosystems. However, little is known about its impacts on phylogenetic and functional properties of ecological communities.
- Here we studied the responses of plant communities in an alpine grassland on the Tibetan Plateau to environmental warming across taxonomic, phylogenetic and functional levels in a 6‐year multiple‐level warming experiment.
- While low‐level warming did not alter either plant species richness or phylogenetic/functional community structure, high‐level warming significantly decreased species richness. Higher level warming more strongly reduced soil moisture and caused stronger environmental filtering, consequently changing species composition and community structure. At the plant functional trait level, high‐level warming promoted species turnover through altering the effects of traits such as plant height on species extinction and SLA on species colonization. As a result, high‐, but not low‐level warming drove phylogenetic/functional community structure from overdispersion to randomness, by filtering out species that were functionally dissimilar and distantly related to the resident species.
- Synthesis. Our study provides evidence that the responses of plant phylogenetic and functional community structure to low warming differ from those in the future scenarios of increasing temperature. Importantly, the extinction of species that was functionally dissimilar and distantly related to the resident species contributed to alterations in plant community structure under high warming. Our study underscores the need to incorporate the phylogenetic and functional perspectives to gain a more complete understanding of community responses to climate warming.
中文翻译：
气候变暖改变了植物的系统发育和功能群落结构
- 众所周知，气候变化会影响地球生态系统的许多方面。但是，对其影响生态群落的系统发育和功能特性知之甚少。
- 在这里，我们进行了为期6年的多级变暖实验，研究了青藏高原高寒草原植物群落对环境变暖的分类，系统发育和功能水平的响应。
- 虽然低水平变暖不会改变植物物种丰富度或系统发育/功能性群落结构，但高水平变暖却明显降低了物种丰富度。较高程度的升温会更强烈地减少土壤水分，并导致更强的环境过滤，从而改变物种组成和群落结构。在植物功能性状水平上，高水平的变暖通过改变诸如株高对物种灭绝和SLA对物种定居等性状的影响来促进物种更新。结果，高水平但不是低水平的变暖通过过滤掉功能上不同且与居留物种密切相关的物种，将系统发育/功能性群落结构从过度分散变为随机。
- 综合。我们的研究提供了证据，表明植物的系统发育和功能性群落结构对低暖的反应与未来温度升高的情况不同。重要的是，在高温条件下，功能上不相同且与常驻物种有密切关系的物种的灭绝导致植物群落结构发生变化。我们的研究强调需要整合系统发育和功能性观点，以更全面地了解社区对气候变暖的反应。
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