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An integrative perspective to understand the impact of co-occurring ecosystem engineers on macroinvertebrates

文献类型： 外文期刊

作者： Yan, Jiaguo 1 ; Sui, Haochen 1 ; Huang, Honghui 2 ; Wang, Xinyan 1 ; Qiu, Dongdong 1 ; Cui, Baoshan 1 ;

作者机构： 1.Beijing Normal Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100875, Peoples R China

2.Chinese Acad Fishery Sci, Guangdong Prov Key Lab Fishery Ecol & Environm, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

关键词： Ecosystem engineering effects; Species invasion; Shell debris and aggregation; Biodiversity; Productivity; The Yellow River Delta

期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）

ISSN： 0025-326X

年卷期： 2020 年 152 卷

页码：

收录情况： SCI

摘要： Invasion of habitat-modifying nonnative species and alteration of ecosystem engineer by exploitation are two of the dominant human impacts on natural ecosystem functioning. The effects of these co-occurring ecosystem engineers may act simultaneously and vary independently depending on ambient environmental conditions they modify. Using a saltmarsh ecosystem with continuing invasion of nonnative cordgrass and aggregation of native bivalve shells, we tested whether the ecosystem engineering effects of shell aggregation on macroinvertebrates depended on the plants due to their ability to trap shell debris. We found habitats covered with shell aggregation and vegetated cordgrass significantly increase the biodiversity but decrease the biomass of macroinvertebrates comparing to the tidal bare flats, whereas no differences were detected among shell covered, cordgrass vegetated and their coexistent habitats. Our study highlights the importance of considering multiple, potentially conflicting management goals, which may require flexibility and trade-offs to integrate nonnative and native resources into ecosystem management.

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