摘要:在城市化的背景下，探明不同大型底栖动物群落对植物群落变化的响应，对红树林生态系统的健康评价和退化生态系统的修复具有重要意义。以福建漳江口国家级红树林自然保护区为研究对象，揭示红树植物群落周转对不同大型底栖动物群落结构（蟹类和软体动物）的影响，并分析其与环境参数的关联性。结果表明：在1.6 km的地理尺度上，漳江口红树林湿地的环境变化较大，表现出7.19个环境梯度。在此地理尺度的环境梯度上，红树植物群落由5种红树植物组成，其平均周转率为76%；软体动物群落由12种软体动物以模块化和非随机的方式聚集，其平均周转率为83%，并随红树植物群落周转出现显著非线性增加，盐度和老鼠簕（Acanthus ilicifolius）周转是其主要影响因素；蟹类群落则由20种蟹类以更高的模块化和非随机的方式分散，平均周转率为89%，并随红树植物群落周转而呈线性增加，主要受pH和白骨壤（Avicennia marina）周转的影响。研究揭示了大型底栖动物与植物群落和环境之间的关系，为城市化背景下红树林生态系统的保护和恢复提供基础资料。



Abstract:Under the urbanization, exploring the responses of different macrobenthic communities to mangrove community changes is of great significance for assessment of mangrove ecosystems health and restoration of degraded ecosystems. This study was performed in the Fujian Zhangjiang National Mangrove Nature Reserve to uncover the effects of mangrove community turnover on different macrobenthic communities (crabs and mollusks) and detect its correlation with environmental factors. The results showed that the environment of the Zhangjiang Estuary mangrove wetland had a great change, showing 7.19 environmental gradients on the 1.6 km geographic scale. On the environmental gradient of this geographic scale, the mangrove community was composed of 5 mangrove species, with an average turnover rate of 76%; The mollusk community consisted of 12 species of mollusks, gathering in a modular and non-random, with an average turnover rate of 83%, and had a significant nonlinear increase with the mangrove turnover, mainly affected by salinity and turnover of Acanthus ilicifolius; The crab community consisted of 20 species of crabs segregated in a more modular and non-random manner, with an average turnover rate of 89%, and linearly increased with the turnover of the mangrove plant community, mainly affected by pH value of sediments and turnover of Avicennia marina. This study investigated the relationship between macrozoobenthic communities and vegetation and their habitat conditions, which provided basic data for the conservation and restoration of mangroves in the context of urbanization.





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