论文部分内容阅读
通过严格的室内试验,测定了烟盲蝽雌成虫、雄成虫和5龄若虫对斜纹夜蛾卵、1龄幼虫和2龄幼虫的捕食作用。结果表明,烟盲蝽对猎物的功能反应均呈HolingⅡ型。烟盲蝽3种虫态对猎物捕食能力的大小顺序为:雌成虫>5龄若虫>雄成虫。烟盲蝽雌成虫对猎物1龄幼虫的捕食效应随自身密度的增加而下降。个体间相互干扰对捕食效应有一定影响,随着捕食者和猎物密度的增加,干扰作用增强,雌成虫对1龄幼虫的捕食作用率显著下降,用Hassel方程模拟能够很好地反映这一变化规律。
Through rigorous laboratory tests, the predation effects of female, male and 5th instar nymphs on the eggs, 1st instar larvae and 2nd instar larvae were determined. The results showed that the function of Lygus against prey all showed Holing Ⅱ type. The order of the predatory ability of the three species of Lygus stink bug to prey was female adults> 5th instar nymphs> male adults. Predatory effects of female Lygus beetles on the first instar larvae of prey decreased with their own density. Mutual interference between individuals had an impact on the predation effect. With the increase of the density of predators and prey, the interference effect was enhanced. The predation rate of female adults on the first instar larvae decreased significantly. The simulation with Hassel equation could well reflect this A change rule.