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试验研究不同饥饿程度的异色瓢虫雌、雄成虫对烟蚜的捕食作用。结果表明 ,不同饥饿程度的异色瓢虫雌成虫对烟蚜捕食作用的功能反应均为 Holling 型反应模型 ;异色瓢虫雌成虫在各种饥饿条件下 2 4 h内对烟蚜的捕食量差异不显著 ;雌成虫捕食量大于雄成虫 ,且饥饿时间愈长 ,烟蚜密度愈大 ,两者的差异愈显著 ;异色瓢虫雌、雄成虫间在 2 4 h内的捕食速度 ( V)差异不显著 ,且与时间段 ( x)关系的模型分别为 V=5.861 9x- 0 .80 87和 V=4 .8583x- 0 .72 2 0 ;异色瓢虫雌、雄成虫对烟蚜的捕食量 ( Na)随着时间 ( t)的变化模型分别为 Na=90 /( 1 +e1 .0 886 - 0 .1 2 1 9t)和 Na=90 /( 1 +e1 .2 70 2 - 0 .1 0 1 7t)。
Experiments were conducted to study the predation of male and female adults of Myxopheles hystrix to different degrees of starvation. The results showed that all the functional responses of female adults of C. heterophylla to different levels of hunger on the predation of Myzus persicae were Holling-type reaction models. The predation rates of H. avenae adults on the population of Aphis gossypii in 24 hours under various starvation conditions The predation rate of female adults was higher than that of male adults, and the longer the starvation time, the greater the density of the tobacco aphids. The difference between the two groups was more significant. The predation rate (V ) Were not significantly different (P <0.05), and the model of the relationship with time (x) were V = 5.861 9x-0 .8087 and V = 4.8583x- 0.72 2 0 respectively. (1 + e1 .0 886 - 0 .1 2 1 9t) and Na = 90 / (1 + e1 .2 70 2 - 0 .1 0 1 7t).