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在害虫生物防治研究中,选择适合的天敌种类或类型是能否有效控制害虫的关键.虽然传统的功能反应试验能够为评价天敌的捕食行为与猎物(或寄主)密度的关系提供有益的依据,但不能根据这些结果对天敌捕食能力进行统计比较.本文在Michaelis-Menten模型的基础上,提出多级层次结构的功能反应模型,使试验习子(如天敌类型、猎物种类等)对捕食行为的影响,表达为模型参数的改变.并根据Ibralim和Rahman(1997)发表的12组功能反应试验结果,应用这一多层次结构模型统计比较不同天敌类型的捕食行为、及猎物种类、猎物生长期对试验结果的影响.取得如下结论:1.根据模型预测值与试验观测结果的吻合程度及模型误差的分布,说明以Michaelis-Menton为基础的多层次结构的功能反应模型能够用于统计比较捕食螨种类间的捕食行为,以及猎物类型、猎物生长阶段和其它环境因子对天敌捕食行为的影响作用.2.这一模型的分析结果不仅从统计角度证实了Ibahim和Rahman(1997)的推测,即红色叶螨是更适于这种捕食螨的猎物.同时为捕食螨种类的选择及田间释放技术提供统计依据.
In the study of pest biological control, it is the key to choose the appropriate type or type of natural enemies to control pests.Although the traditional functional response test can provide a useful basis for evaluating the relationship between predation behavior and the density of prey (or host) But we can not compare the predatory ability of the natural enemies based on these results.On the basis of Michaelis-Menten model, the functional response model of multilevel hierarchy structure is put forward, which makes the function of preying behavior (such as predators, prey species, etc.) And expressed as the change of model parameters.According to the results of 12 functional response tests published by Ibralim and Rahman (1997), this multi-layer structure model was used to statistically compare the predation behaviors of different natural enemy types with the prey species, The conclusions are as follows: 1. Based on the agreement between model predictions and experimental observations and the distribution of model errors, it is shown that the multi-level functional response model based on Michaelis-Menton can be used for statistical comparison of predatory mites Prey behavior among species, as well as prey type, prey growth phase and other environmental factors The predatory behavior of predators.2 The results of this model not only confirm Ibahim and Rahman’s (1997) speculation that statistical analysis shows that red spider mites are more suitable for predation of prey on mites, The choice and field release technology to provide a statistical basis.