Stochasticity, succession, and environmental perturbations in a fluidic ecosystem

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气污染控制中心

	Stochasticity, succession, and environmental perturbations in a fluidic ecosystem
	Zhou, Jizhong ; Deng, Ye ; Zhang, Ping ; Xue, Kai ; Liang, Yuting ; Van Nostrand, Joy D. ; Yang, Yunfeng ; He, Zhili ; Wu, Liyou ; Stahl, David A. ; Hazen, Terry C. ; Tiedje, James M. ; Arkin, Adam P.
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2014
卷号	111 期号:9 页码:E836-E845
关键词	community assembly disturbances metagenomics GeoChip remediation
ISSN号	0027-8424
中文摘要	Unraveling the drivers of community structure and succession in response to environmental change is a central goal in ecology. Although the mechanisms shaping community structure have been intensively examined, those controlling ecological succession remain elusive. To understand the relative importance of stochastic and deterministic processes in mediating microbial community succession, a unique framework composed of four different cases was developed for fluidic and nonfluidic ecosystems. The framework was then tested for one fluidic ecosystem: a groundwater system perturbed by adding emulsified vegetable oil (EVO) for uranium immobilization. Our results revealed that groundwater microbial community diverged substantially away from the initial community after EVO amendment and eventually converged to a new community state, which was closely clustered with its initial state. However, their composition and structure were significantly different from each other. Null model analysis indicated that both deterministic and stochastic processes played important roles in controlling the assembly and succession of the groundwater microbial community, but their relative importance was time dependent. Additionally, consistent with the proposed conceptual framework but contradictory to conventional wisdom, the community succession responding to EVO amendment was primarily controlled by stochastic rather than deterministic processes. During the middle phase of the succession, the roles of stochastic processes in controlling community composition increased substantially, ranging from 81.3% to 92.0%. Finally, there are limited successional studies available to support different cases in the conceptual framework, but further well-replicated explicit time-series experiments are needed to understand the relative importance of deterministic and stochastic processes in controlling community succession.
WOS记录号	WOS:000332560300009
公开日期	2015-03-24
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9289]
专题	生态环境研究中心_大气污染控制中心
推荐引用方式 GB/T 7714	Zhou, Jizhong,Deng, Ye,Zhang, Ping,et al. Stochasticity, succession, and environmental perturbations in a fluidic ecosystem[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2014,111(9):E836-E845.
APA	Zhou, Jizhong.,Deng, Ye.,Zhang, Ping.,Xue, Kai.,Liang, Yuting.,...&Arkin, Adam P..(2014).Stochasticity, succession, and environmental perturbations in a fluidic ecosystem.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,111(9),E836-E845.
MLA	Zhou, Jizhong,et al."Stochasticity, succession, and environmental perturbations in a fluidic ecosystem".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 111.9(2014):E836-E845.