昆虫种群系统的研究概述

STATUS OF INSECT POPULATION SYSTEM APPROACH

种群系统把对象种群看成是一个系统,把作用于种群的各种因子看成是系统的空间边界,来研究种群的数量动态和数量控制问题。种群系统的研究引入了系统科学的理论和方法,丰富了种群动态的理论和提出了种群的数量控制,使种群生态学在理论上和方法上进一步发展。本文拟在种群系统的概念和研究方法上进行讨论,其中包括作者在有关研究中提出的问题,特别是种群系统的控制信息的处理问题,供进一步讨论参考。

Population system means that a subject population is considered as a system, grouped by several states connecting with survival rates and productivities, and its enviromental acting factors are regarded as the spatial limit, to study the population dynamics and population control.In this paper,based on the Morris-Watt population mathematical model in addition to the exclusion analysis,addition analysis and interference analysis methods, an index of population control (IPC) has been designed to analysis the important factors and key faetors, and to be used as the calculating element to input the control effect of the limiting factors in to insect population system studies.Some theoretical models of multi-species interaction were constructed by some authors. But, it is difficult to decide the interaction coefficients in biological experiments when the populations of more than 4 species are in a system. In this paper, the rotation composite design of quadratic regression has been suggested as a method to constructed a mathematical model to describe the dynamics of several different populations interacting together. This mathematical model may be helpful to input the information of control effects in populations system with several species interacting together.