The Analysis of the Effect of the Natural Enemy Factor on Population Dynamics of the Wheat Aphid Based on Structural Equation Model
In the wheat aphid ecosystem,the natural enemy factor is an important inhibiting factor for the pop-ulation growth of the wheat aphid.The effects of different natural enemy populations on the population dynam-ics of the wheat aphid are different and complex.In this paper,a structural equation model is constructed to de-scribe the change rule of aphid population state under the combined action of multiple natural enemy popula-tions,the comprehensive effects of multiple natural enemy populations on the wheat aphid population are ana-lyzed and the dominant natural enemy population is given,which provide the theoretical basis for the scientific control of insect pests.
Wheat aphid populationNatural enemy factorStructural equation model
万方数据
维普
