【摘要】 利用Holling模型模拟麦蚜的重要天敌七星瓢虫成虫、幼虫(Ⅰ,Ⅱ)和黑带食蚜绳幼虫的搜寻效应,获取以下参数:24h捕食量上限依次为210头、263头(Ⅰ)、227头(Ⅱ)、238头.功能系数为0.7225,1.1475(Ⅰ),1.1811(Ⅱ),1.1425.捕食1头蚜虫平均花费时间为6.86min、5.48min(Ⅰ)、6.34min(Ⅱ).6.05min.更多还原

【Abstract】 Based on’the Rolling mode, The catching effect of Coccinella Septempunctata imagoes and larvas (I,II)and Epistrophe balteata larvias has been simulated, from which the following parameter was obtained., the catching- range witkin 24 hours deing 270, 283 (I), 227(II) , 238 nespeetively. The function coefficient was 0.7325, 1.1475 (II), 1.1425, The average time spent on, one aphid was 6.86, 5.48(I) , 6.34(II) , 6.05 minutes.更多还原