The classical fish population dynamic models were largely on the basis of stable population behavior assumption.
经典的鱼类种群动态模型是以稳定的种群行为为基础的。
The optimal control problem of linear population dynamic system with age-structure in periodic environment was investigated.
在周期环境下，研究一类具有年龄结构种群线性动力系统的最优控制问题。
The population dynamic and composition of predatory enemiesThe results indicated 28 species of predators belonging to 7 orders, 15 families, were found in coton fields.
棉田捕食性天敌组成及种群动态经过系统调查，初步得出该垦区捕食性天敌隶属于7目15科28种。
The population dynamic of Tsuga tchekiangensis in Wuyishan Nature Reserve was studied and its age structure, the life table, survival curve, mortality rate and killing power curve were analyzed.
对武夷山自然保护区南方铁杉种群动态进行了系统研究，绘制该种群的年龄结构，编制静态生命表，分析存活曲线、死亡率曲线和损失度曲线。
The population dynamic of Tsuga tchekiangensis in Wuyishan Nature Reserve was studied and its age structure, the life table, survival curve, mortality rate and killing power curve were analyzed.
对武夷山自然保护区南方铁杉种群动态进行了系统研究，绘制该种群的年龄结构，编制静态生命表，分析存活曲线、死亡率曲线和损失度曲线。
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