【摘要】 大草蛉3龄幼虫对绣线菌蚜的功能反应模型为一分段函数。当绣线菌蚜密度大于20头/梢时,符合Holling圆盘方程;小于或等于20头/梢时,全部被捕食。大草蛉幼虫对绣线菊蚜具有很强的搜索能力和捕食能力,其攻击速率a′=1.02102,处理时间T_h=0.00117,当绣线菊蚜充足时,每头3龄幼虫每天能捕食绣线菊蚜200头以上。更多还原

【Abstract】 The functinal response of the third instar larva of chrysopa septempunctata wesmael to the density of Aphis citricola conforms to the Holling’s disc equation when the density of Aphis citricola is above 20 phids per shoot. When the density of aphid is Below or epual to 20 aphids per shoot, the aphids will be predated entirely. The instar larva of chrysopa septempunctata had strong searchign and predatory abilites for Aphis citricola. When aphids are enough, the predeated aphids per C. septempunctata in 24 hours are above 200. Although only one aphid per shoot is existed,C. septempunctata can predeted it 24 hours.更多还原