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Changes in the benthic protozoan community during succession of a mangrove ecosystem in Zhanjiang, China

文献类型： 外文期刊

作者： Chen, Quan 1 ; Li, Jing 1 ; Zhao, Qian 1 ; Jian, Shuguang 1 ; Ren, Hai 1 ;

作者机构： 1.Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China

2.Chinese Acad Fishery Sci, Sci Observing & Expt Stn South China Sea Fishery, Guangdong Prov Key Lab Fishery Ecol & Environm,Mi, Key Lab Marine Ranch Technol,South China Sea Fish, Guangzhou 510300, Guangdong, Peoples R China

3.South China Agr Univ, Coll Forestry & Landscape Architecture, Guangzhou 510642, Guangdong, Peoples R Chin

关键词： canonical redundancy analysis (RDA); chronosequence; sediment physicochemical properties; vegetation characteristics

期刊名称：ECOSPHERE （ 影响因子：3.171； 五年影响因子：3.832 ）

ISSN： 2150-8925

年卷期： 2018 年 9 卷 4 期

页码：

收录情况： SCI

摘要： The protection and restoration of mangrove ecosystems depend on understanding the interaction between benthic organisms and mangrove succession. Although benthic protozoa are important in such ecosystems, protozoan community dynamics have seldom been studied during the mangrove succession. The benthic protozoa of a mangrove chronosequence that included a primary community (unvegetated shoal), an early community (Avicennia marina), a middle community (Aegiceras corniculatum), and a late community (Bruguiera gymnorrhiza + Rhizophora stylosa) were investigated to determine the changes in the benthic protozoan community during a mangrove succession at Zhanjiang, China. A total of 62 benthic protozoa taxa belonging to three classes, 26 orders, and 38 families were recorded. The abundance of benthic protozoa decreased significantly during mangrove succession, while species richness and diversity changed irregularly. Hierarchical clustering indicated that the distribution of the benthic protozoa closely corresponded with the mangrove successional stages. Further analyses indicated that the changes in the benthic protozoan community with mangrove succession were associated with the changes in total sediment nitrogen content and especially with vegetation characteristics, including plant height and crown breadth. The decline in the abundance of benthic protozoa during mangrove succession may be explained by the deterioration of benthic protozoan microhabitats. However, determining whether these or other factors are responsible for the change in the benthic protozoan community during mangrove succession will require additional research.

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