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Climate warming leads to divergent succession of grassland microbial communities

生态演替 草原 微生物种群生物学 气候变化 环境科学 生态系统 群落结构 全球变暖 全球变暖的影响 生态学 社区 生物 遗传学 细菌
作者
Xue Guo,Jiajie Feng,Zhou Jason Shi,Xishu Zhou,Mengting Yuan,Xuanyu Tao,Lauren Hale,Tong Yuan,Jianjun Wang,Yujia Qin,Aifen Zhou,Ying Fu,Liyou Wu,Zhili He,Joy D. Van Nostrand,Daliang Ning,Xueduan Liu,Yiqi Luo,James M. Tiedje,Yunfeng Yang,Jizhong Zhou
出处
期刊:Nature Climate Change [Springer Nature]
卷期号:8 (9): 813-818 被引量:257
标识
DOI:10.1038/s41558-018-0254-2
摘要

Accurate climate projections require an understanding of the effects of warming on ecological communities and the underlying mechanisms that drive them1–3. However, little is known about the effects of climate warming on the succession of microbial communities4,5. Here we examined the temporal succession of soil microbes in a long-term climate change experiment at a tall-grass prairie ecosystem. Experimental warming was found to significantly alter the community structure of bacteria and fungi. By determining the time-decay relationships and the paired differences of microbial communities under warming and ambient conditions, experimental warming was shown to lead to increasingly divergent succession of the soil microbial communities, with possibly higher impacts on fungi than bacteria. Variation partition- and null model-based analyses indicate that stochastic processes played larger roles than deterministic ones in explaining microbial community taxonomic and phylogenetic compositions. However, in warmed soils, the relative importance of stochastic processes decreased over time, indicating a potential deterministic environmental filtering elicited by warming. Although successional trajectories of microbial communities are difficult to predict under future climate change scenarios, their composition and structure are projected to be less variable due to warming-driven selection. Experimental warming at a tall-grass prairie significantly altered bacteria and fungi community structure. Under climate change microbial community composition and structure are projected to be less variable due to warming-driven selection.
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