烟青虫种群动态模型的研究  

A population dynamics model of Helicoverpa assulta (Guenée)(lepidoptera:noctuidae)

作　　者：谢立群[1] 张孝羲[1] 

机构地区：[1]南京农业大学植保系,南京210095

出　　处：《生态学报》1999年第4期458-465,共8页Acta Ecologica Sinica

摘　　要：在对烟青虫 Ｈｅｌｉｃｏｖｅｒｐ ａ ａｓｓｕｌｔａ 实验种群研究的基础上，应用变维矩阵结合差分方程，建立了烟青虫种群动态模拟模型，模型采用分块矩阵的方式，以实际日龄为步长，通过适当增加矩阵维数、对虫期（态）向量实行按矩阵维数的变化而伸缩的形式，使模型不但适合于变温条件，而且能够表示烟青虫个体发育的差异。该理论模型有待于地方化。Based on the experimental population study of tobacco budworm( Helicoverpa assulta ),a population dynamics model was constructed by combining the dimension changeable matrix and difference equations.In this model,matrix blocks were adopted and calendar time(day)was used as time scale.The variability of developmental rate among individuals could be described by stretching dimensions of the matrix.Because the vectors of development stages adjusted with the variance of matrix dimensions,this model could be applied in temperature changeable conditions.The population dynamics of the changeable temperature was simulated by exporting the variation of development and population size in different stages.This theoretical simulating model needs to be localized in the future.

关 键 词：烟青虫 种群动态 模拟模型 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] S435.72[农业科学—植物保护]