生态学报2007，Vol.27Issue(8)：3341-3347,7.
不同干扰因素对斜纹猫蛛(Oxyopes sertatus)和红彩真猎蝽(Harpactor fuscipes)捕食作用的影响
Effect of interference factors on predations of Oxyopes sertatus (L.) Koch(Araneae: Oxyopidae) and Harpactor fuscipes (F.) (Hemiptera: Reduviidae) on Spodoptera litura (F.)
摘要
Abstract
Both Oxyopes sertatus and Harpactor fuscipes are important predators of common cutworm (Spodoptera litura) on tobacco.The effect of several interference factors on the predations of O.sertatus and H.fuscipes on the larvae of S.litura were examined in laboratory.The results indicated that there were significant mutual interferences on their predations with the existence of other individual in the same/different species.As the number of the predator increased,the predation rates decreased significantly.The interference coefficients (m) within H.fuscipes and within O.sertatus were 0.7278 and 0.6911,respectively,while the interference coefficient (m) between O.sertatus and H.fuscipes was 0.9464.These results showed that the effect of mutual interference on predation in interspecies was more obvious than that in intraspecies.The number of prey captured and the predation rate of predator dropped with increasing the number of tobacco stalks.This result suggested that spatial heterogeneity was also an important factor affecting the predation of predator on prey.关键词
斜纹猫蛛/红彩真猎蝽/斜纹夜蛾/相互干扰/捕食作用Key words
Oxyopes sertatus/Harpactor fuscipes/Spodoptera litura/mutual interference/predation分类
生物科学引用本文复制引用
周忠实,陈泽鹏,邓海滨,许再褔..不同干扰因素对斜纹猫蛛(Oxyopes sertatus)和红彩真猎蝽(Harpactor fuscipes)捕食作用的影响[J].生态学报,2007,27(8):3341-3347,7.基金项目
The project was financially supported by Project of Guangdong Company of Tobacco 广东省烟草公司资助项目 （）
