Temporal variations in a phytoplankton community in a subtropical reservoir: An interplay of extrinsic and intrinsic community effects | |
Yang, Wen1; Zheng, Zhongming1; Zheng, Cheng1; Lu, Kaihong1; Ding, Dewen2; Zhu, Jinyong1 | |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT |
2018-01-15 | |
卷号 | 612页码:720-727 |
关键词 | Reservoir Phytoplankton Extrinsic effects Interspecific interaction Network |
ISSN号 | 0048-9697 |
DOI | 10.1016/j.scitotenv.2017.08.044 |
英文摘要 | The phytoplankton community structure is potentially influenced by both extrinsic effects originating from the surrounding environment and intrinsic effects relying on interspecific interactions between two species. However, few studies have simultaneously considered both types of effects and assessed the relative importance of these factors. In this study, we used data collected over nine months (August 2012-May 2013) from a typical subtropical reservoir in southeast China to analyze the temporal variation of its phytoplankton community structure and develop a quantitative understanding of the extrinsic and intrinsic effects on phytoplankton community dynamics. Significant temporal variations were observed in environmental variables as well as the phytoplankton and zooplankton communities, whereas their variational trajectories and directions were entirely different. Variance partitioning analysis showed that extrinsic factors significantly explained only 31% of the variation in the phytoplankton community, thus suggesting that these factors were incomplete predictors of the community structure. Random forest-based models showed that 48% of qualified responsible phytoplankton species were more accurately predicted by phytoplankton-only models, which revealed clear effects of interspecific species-to-species interactions. Furthermore, we used association networks to model the interactions among phytoplankton, zooplankton and the environment. Network comparisons indicated that interspecific interactions were widely present in the phytoplankton community and dominated the network rather than those between phytoplankton and extrinsic factors. These findings expand the current understanding of the underlying mechanisms that govern phytoplankton community dynamics. (C) 2017 Elsevier B.V. All rights reserved. |
资助项目 | Zhejiang Provincial Undergraduate Scientific and Technological Innovation Project[2017R405061] |
WOS关键词 | ASSOCIATION NETWORKS ; SPECIES INTERACTIONS ; BACTERIAL COMMUNITY ; SPATIAL PROCESSES ; FUNCTIONAL-GROUPS ; TROPHIC-STATE ; DYNAMICS ; RESPONSES ; CLIMATE ; COMPETITION |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000413313700072 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn:8080/handle/2SI8HI0U/26393] |
专题 | 自然资源部第一海洋研究所 |
通讯作者 | Zhu, Jinyong |
作者单位 | 1.Ningbo Univ, Sch Marine Sci, Ningbo 315211, Zhejiang, Peoples R China 2.SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Wen,Zheng, Zhongming,Zheng, Cheng,et al. Temporal variations in a phytoplankton community in a subtropical reservoir: An interplay of extrinsic and intrinsic community effects[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,612:720-727. |
APA | Yang, Wen,Zheng, Zhongming,Zheng, Cheng,Lu, Kaihong,Ding, Dewen,&Zhu, Jinyong.(2018).Temporal variations in a phytoplankton community in a subtropical reservoir: An interplay of extrinsic and intrinsic community effects.SCIENCE OF THE TOTAL ENVIRONMENT,612,720-727. |
MLA | Yang, Wen,et al."Temporal variations in a phytoplankton community in a subtropical reservoir: An interplay of extrinsic and intrinsic community effects".SCIENCE OF THE TOTAL ENVIRONMENT 612(2018):720-727. |
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