草间小黑蛛对茶蚜的捕食功能反应  

Predatory functional responses of Erigonidium graminicolum to Toxoptera aurantii

作　　者：林海清[1] 尤民生[1] 陈李林[1] 

机构地区：[1]福建农林大学应用生态研究所,福建福州350002

出　　处：《华东昆虫学报》2007年第1期44-47,共4页Entomological Journal of East China

基　　金：国家高技术产业发展项目(发改高技[2003]2140号)

摘　　要：在实验室条件下研究了草间小黑蛛(Erigonidium graminicolum)对茶蚜(Toxoptera aurantii)的捕食作用。草间小黑蛛对茶蚜的捕食功能反应属于HollingⅡ型。草间小黑蛛有较强的种内干扰反应,随着捕食者密度的增大,草间小黑蛛的捕食率相应降低。猎物密度和天敌密度相互干扰会降低草间小黑蛛的寻找效应,但对捕食量没有影响。The predatory functional responses of Erigonidium graminicolum to Toxoptera aurantii were studied in the laboratory. The results showed that the functional responses of E. graminicolum to T. aurantii belonged to Holling＇s Ⅱ type. Intraspecific interfer- ence was found in the experiment. The predation rate of E. graminicolum decreased along with the increase of predator density. Mutual interference of prey and predator densities could reduce the searching efficiency of E. graminicolum, but had no affection on preying.

关 键 词：草间小黑蛛 茶蚜 捕食功能反应 

分 类 号：S476[农业科学—农业昆虫与害虫防治]