气候变化领域集成服务门户(CCPortal): Community assembly processes underlying the temporal dynamics of glacial stream and lake bacterial communities

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DOI	10.1016/j.scitotenv.2020.143178
	Community assembly processes underlying the temporal dynamics of glacial stream and lake bacterial communities
	Gu, Zhengquan; Liu, Keshao; Pedersen, Mikkel Winther; Wang, Feng; Chen, Yuying; Zeng, Chen; Liu, Yongqin
通讯作者	Liu, KS (通讯作者)
发表日期	2021
ISSN	0048-9697
EISSN	1879-1026
卷号	761
英文摘要	Community assembly processes are important in structuring aquatic microbial communities; however, the influence of these processes on the dynamics of bacterial communities in glacial streams and lakes remains largely un-studied. To investigate the assembly processes underlying the temporal variation of the bacterial community, we collected 50 water samples over five months in an ephemeral glacial stream and its downstream lake at the terminus of the Qiangyong glacier on the Tibetan Plateau. Using the V4 hypervariable region of the bacterial 16S rRNA gene combined with environmental measurements, such as water temperature, pH, total nitrogen (TN), dissolved organic carbon (DOC) and water conductivity, we found that temporal variation in the environmental factors promoted the shift in the proglacial stream and the lake bacterial communities. The quantification of ecological processes showed that the stream microbial communities were influenced by the ecological drift (40%) in June, then changed to homogeneous selection (40%) in July and variable selection (60%) in September, while the dynamic pattern of proglacial lake bacterioplankton was governed by homogeneous selection (>= 50%) over the time. Overall, the dynamic of bacterial community in the proglacial stream and lake water is influenced by environmental factors, and the community composition assembly of the Qiangyong glacial stream and lake could be dynamic and primarily governed by deterministic processes. (C) 2020 Elsevier B.V. All rights reserved.
关键词	BETA-DIVERSITY MICROBIAL COMMUNITIES TIBETAN PLATEAU BACTERIOPLANKTON PATTERNS ECOLOGY BIODIVERSITY MECHANISMS FOREST
英文关键词	Microbial ecology; Glaciers; Temporal variation; Community assembly
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000607780900001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260302
推荐引用方式 GB/T 7714	Gu, Zhengquan,Liu, Keshao,Pedersen, Mikkel Winther,et al. Community assembly processes underlying the temporal dynamics of glacial stream and lake bacterial communities[J]. 中国科学院青藏高原研究所,2021,761.
APA	Gu, Zhengquan.,Liu, Keshao.,Pedersen, Mikkel Winther.,Wang, Feng.,Chen, Yuying.,...&Liu, Yongqin.(2021).Community assembly processes underlying the temporal dynamics of glacial stream and lake bacterial communities.SCIENCE OF THE TOTAL ENVIRONMENT,761.
MLA	Gu, Zhengquan,et al."Community assembly processes underlying the temporal dynamics of glacial stream and lake bacterial communities".SCIENCE OF THE TOTAL ENVIRONMENT 761(2021).