Climate warming leads to divergent succession of grassland microbial communities

Xue Guo, Jiajie Feng, Zhou 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 () and Jizhong Zhou ()
Additional contact information
Xue Guo: Central South University
Jiajie Feng: University of Oklahoma
Zhou Shi: University of Oklahoma
Xishu Zhou: Central South University
Mengting Yuan: University of Oklahoma
Xuanyu Tao: University of Oklahoma
Lauren Hale: University of Oklahoma
Tong Yuan: University of Oklahoma
Jianjun Wang: University of Oklahoma
Yujia Qin: University of Oklahoma
Aifen Zhou: University of Oklahoma
Ying Fu: University of Oklahoma
Liyou Wu: University of Oklahoma
Zhili He: University of Oklahoma
Joy D. Van Nostrand: University of Oklahoma
Daliang Ning: University of Oklahoma
Xueduan Liu: Central South University
Yiqi Luo: University of Oklahoma
James M. Tiedje: Michigan State University
Yunfeng Yang: University of Oklahoma
Jizhong Zhou: University of Oklahoma

Nature Climate Change, 2018, vol. 8, issue 9, 813-818

Abstract: Abstract 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.

Date: 2018
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DOI: 10.1038/s41558-018-0254-2

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