Abstract Coastal reclamation engineering structures are exerting significant isolation effects on dynamics of local species. In this research, a population dynamics model was developed for investigating and analyzing dispersal patterns under isolation of artificial barriers in coastal areas. The proposed model have the following advantages: a) revelation of responses for population dynamics under multiple types of artificial barriers; b) reflection a general link between species predation, competition and density-dependent population growth under pressure of artificial barriers. Three barrier types including dotted distribution (DD), linear distribution (LD) and facet distribution (FD) were analyzed and discussed. As the results, the population decline rate for FD would be 10.22% higher than that for LD. The LD could be conducive to protecting the ecological balance of coastal organisms. Based on satisfying the requirements of coastline protection, LD would be an important reference for coastal engineering design and management in future.

中文翻译：

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沿海地区人工屏障影响下的物种动态和相互作用机制

摘要 围填海工程结构对当地物种的动态具有显着的隔离作用。在这项研究中，开发了一个人口动态模型，用于调查和分析沿海地区人工屏障隔离下的扩散模式。所提出的模型具有以下优点： a) 揭示了多种类型的人工障碍下人口动态的响应；b) 反映在人为障碍压力下物种捕食、竞争和密度依赖的种群增长之间的一般联系。分析和讨论了三种屏障类型，包括点分布（DD）、线性分布（LD）和小平面分布（FD）。结果，FD 的人口下降率将比 LD 的人口下降率高 10.22%。LD 有利于保护沿海生物的生态平衡。在满足海岸线保护要求的基础上，LD将成为未来海岸工程设计和管理的重要参考。