摘要
应用二次正交旋转组合设计方法,研究了茶园生态系统中3种捕食性天敌(草间钻头蛛、大草蛉和中华通草蛉)对茶尺蠖的捕食功能性反应。同时分析了猎物密度、捕食者自身密度、种内以及种间干扰对捕食功能的影响。结果指出:3种天敌及茶尺蠖自身密度的变化对于茶尺蠖的被捕食量存在明显的影响,其中草间钻头蛛密度的变化对总捕食量的影响最大。并且这3种天敌的种间和种内均存在着一定的干扰效应。
A function response for predation of three predatory enemies （Hylyphantes graminicola, Chrysopa septempunctata and Chrysoperla sinica） to Ectropis obliqua hypulina in tea gardens was studied with the design of positive rotation combination. Effects of densities of prey,predator, and interferences between and within species on function responses were analyzed .The results showed that significant effects on predatory biomass were found when densities of prey or predator were changed, and the most effect was Hylyphantes graminicola. And the marked interferences of inter-and intra-species was occurred.
出处
《蛛形学报》
2006年第1期33-38,共6页
Acta Arachnologica Sinica
基金
国家自然科学基金资助项目
关键词
草间钻头蛛
大草蛉
中华通草蛉
茶尺蠖
捕食作用
Hylyphantes graminicola
Chrysopa septempunctata
Chrysoperla sinica
Ectropisobliqua hypulina
predation
