A MATHEMATICAL MODEL OF THE SEARCHING EFFICIENCY IN NATURAL ENEMY-PEST SYSTEM
天敌-害虫系统中寻找效应数学模型的研究

The searching efficiency on pest population is a kind of behavioural characteristics of natural enemy in the course of predation or parasitism. Both the laboratory experiments and field observations show that the searching efficiency should be regarded as an important element in the structure of natural enemy-pest system. It is usually a function of the pest density, the natural enemy density and the climatic factors. The climatic condi-tons are rarely considered in the literatures published, though their i...