干扰作用及空间异质性对七星瓢虫成虫捕食作用的影响

›› 1999, Vol. 42 ›› Issue (1): 52-56.

干扰作用及空间异质性对七星瓢虫成虫捕食作用的影响

邹运鼎, 孟庆雷, 陈高潮, 耿继光, 王公明

出版日期:1999-02-20 发布日期:1999-02-20

THE EFFECT OF MUTUAL INTERFERENCE AND SPACIAL HETEROGENITY ON PREDATION OF ADULT COCCINELLA SEPTEMPUNCTATA

Zou Yun-ding,Meng Qing-lei,Chen Gao-chao,Geng Ji-guang,Wang Gong-ming

Online:1999-02-20 Published:1999-02-20

摘要/Abstract

摘要： 通过系统研究，得出：1)七星瓢虫Coccinella septempunctata雌雄成虫在捕食过程中麦秆数越多，环境阻力越大，捕食作用率越低；2)七星瓢虫与异色瓢虫 Harmonis axyridis 捕食过程中的种间干扰作用大于两种瓢虫的种内干扰作用；3)异色瓢虫(♀)种内竞争强度I与瓢虫数P的关系为I=0.0012+1.4072lgP；异色瓢虫(♂)种内竞争强度I与P的关系为I=0.0058+1.3942lgP；七星瓢虫(♀)种内竞争强度I与P的关系为I=-0.0072+0.7234lgP。异色瓢虫(♀)和七星瓢虫(♀)的种间竞争强度I与天敌数量(P)关系的模型为I=0.0539+1.1167 lgP，异色瓢虫(♀)和七星瓢虫(♂)的种间竞争强度I与P的模型为I=0.0018+1.1944lgP。

关键词: 干扰作用, 空间异质性, 七星瓢虫, 捕食作用

Abstract: The effect of mutual interference and heterogeneity on Coccinella septempunctata was investigated. It was found that the more wheat stalks the adult ladybugs encountered, which meant more interference was met during predation, the lower the predation efficiency was observed.The interspecific mutual interference had more influence on predation of adult ladybug than the intraspecific mutual interference did in C. septempunctata and Harmonia axyricis. The correlation of intraspecific competition strength (I) and the number of ladybug (P) in H. axyricis could be described as I=0.0012+1.4072lgP for female, I=0.0058+1.3942 lgP for male and I=-0.0072+0.7234lgP for female C. septempunctata. The correlation of interspecific competition strength between C. septempunctata and H. axyricis (I) and the number of natural enemies (P) could be described as I=0.0539+1.1167lgP for female C. septempunctata and female H. axyricis, I=0.0018+1.1944lgP for female H. axyricis and male C. septempunctata.

Key words: mutual interference, spacial heterogeneity, Coccinella septempunctata, predation

邹运鼎, 孟庆雷, 陈高潮, 耿继光, 王公明. 干扰作用及空间异质性对七星瓢虫成虫捕食作用的影响[J]. , 1999, 42(1): 52-56.

Zou Yun-ding,Meng Qing-lei,Chen Gao-chao,Geng Ji-guang,Wang Gong-ming. THE EFFECT OF MUTUAL INTERFERENCE AND SPACIAL HETEROGENITY ON PREDATION OF ADULT COCCINELLA SEPTEMPUNCTATA[J]. , 1999, 42(1): 52-56.

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