普通肉食螨对椭圆食粉螨的捕食功能  

Predation of Cheyletus eruditus on Aleuroglyphus ovatus

作　　者：夏斌[1] 罗冬梅[1] 邹志文[1] 许睿[1] 朱志民[1] 

机构地区：[1]南昌大学生命科学学院,南昌330047

出　　处：《昆虫知识》2007年第4期549-552,共4页Entomological Knowledge

基　　金：国家自然科学基金(39960013)资助;江西省自然科学基金(95419)资助

摘　　要：在6个恒温下研究普通肉食螨Cheyletus eruditus(Schrank)不同螨态对椭圆食粉螨Aleuroglyphus ovatus(Troupeau)的功能反应。结果表明,普通肉食螨不同螨态对椭圆食粉螨的功能反应均属于HollingⅡ型,其中雌成螨的捕食能力最强,其次是雄螨、若螨、幼螨;在各温度处理中,雌成螨在28℃时具有较高的捕食功能;普通肉食螨在16℃的低温状态下捕食功能很低,仅有雌螨对猎物有捕食行为;在猎物密度不变的情况下,普通肉食螨捕食猎物的数量随自身密度的增加而下降。The predation of Cheyletus eruditus （Schrank） on Aleuroglyphus ovatus （Troupeau） was studied at 6 constant temperatures. The resuhs showed that all functional response of C. eruditus in different developmental stages to A. ovatus can be described as Holling Ⅱ type. Among all stages and temperatures, female adult was the most efficient predatory stage at 28℃, Only female adult preyed on A. ovatus at 16℃. The density of predator affected the predatory ratio, in which the number of predation was slowly decreased with the increased density of predator.

关 键 词：普通肉食螨 椭圆食粉螨 捕食功能 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]