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Fragmented coexistence and spatial decoupling in estuarine macrobenthos driven by an artificial flood event

文献类型：期刊论文

作者Sun, Debin2,3; Fu, Qinglu2,3; Chen, Linlin3; Wang, Jiao3; Chen, Jing3; Wu, Qizheng2,3; Li, Yv3; Li, Ruichao2,3; Li, Baoquan1
刊名GLOBAL ECOLOGY AND CONSERVATION
出版日期2026-06-01
卷号67页码:14
关键词Artificial flood event Macrobenthos assembly Diversity patterns Spatial decoupling Estuarine ecology
DOI10.1016/j.gecco.2026.e04192
通讯作者Chen, Linlin(llchen@yic.ac.cn) ; Li, Baoquan(bqli@jou.edu.cn)
英文摘要Currently, how estuarine biomes respond to river regulation has become a globally concerned issue, yet the assembly mechanisms shaping diversity patterns and species coexistence in estuarine macrobenthos following such events are poorly understood. To address this gap, we applied a suite of multi-scale approaches, integrating spatial variation partitioning, beta diversity decomposition, as well as niche and network theories, to dissect community shifts across a typical artificial flood event in the Yellow River Estuary. Results revealed this event fundamentally reconfigured the assembly rules, biogeographic structure, and coexistence architecture of estuarine macrobenthic communities through a tripartite mechanistic response: (i) environmental filtering strengthened as a selective sieve (pure environmental fraction increasing from 21.15% to 30.49%), while stochastic processes, particularly ecological drift, simultaneously gained prominence (unexplained variation rising from 15.00% to 24.37%); (ii) a consequent spatial decoupling that fractures the estuarine continuum into a high-turnover near-estuary and a buffered, highsimilarity far-estuary; and (iii) the emergence of divergent coexistence architectures within these regions from structured niche partitioning in the far-estuary to modular networks of opportunistic annelids in the near-estuary. Our work elucidates how artificial floods reconfigure estuarine macrobenthos communities by shifting assembly rules, leading to a more fragmented community structure. These findings provide a critical mechanistic basis for informing adaptive management strategies to address ecological challenges posed by river management and climate change.
WOS关键词WATER-SEDIMENT REGULATION ; YELLOW-RIVER ESTUARY ; BODY-SIZE ; COMMUNITIES ; DYNAMICS ; DELTA ; MOUTH ; DAMS
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001744770200001
资助机构National Key R & D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; China Scholarship Council
源URL[http://ir.yic.ac.cn/handle/133337/42399]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Chen, Linlin; Li, Baoquan
作者单位1.Jiangsu Ocean Univ, Sch Marine Sci & Fisheries, 59 Cangwu Rd, Lianyungang 222005, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, 17 Chunhui St, Yantai 264003, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Debin,Fu, Qinglu,Chen, Linlin,et al. Fragmented coexistence and spatial decoupling in estuarine macrobenthos driven by an artificial flood event[J]. GLOBAL ECOLOGY AND CONSERVATION,2026,67:14.
APA Sun, Debin.,Fu, Qinglu.,Chen, Linlin.,Wang, Jiao.,Chen, Jing.,...&Li, Baoquan.(2026).Fragmented coexistence and spatial decoupling in estuarine macrobenthos driven by an artificial flood event.GLOBAL ECOLOGY AND CONSERVATION,67,14.
MLA Sun, Debin,et al."Fragmented coexistence and spatial decoupling in estuarine macrobenthos driven by an artificial flood event".GLOBAL ECOLOGY AND CONSERVATION 67(2026):14.

入库方式： OAI收割

来源：烟台海岸带研究所

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