SO_2胁迫对异色瓢虫捕食桃粉大尾蚜功能影响的研究  

The Functional Response of Harmonia axyridis to Hyaloptera amygdales Under SO_2 Intimidate

作　　者：刘军侠[1] 姜文虎[1] 李彦慧[1] 廖月枝[1] 袁胜亮[1] 高宝嘉[1] 

机构地区：[1]河北农业大学,河北保定071000

出　　处：《中国农学通报》2008年第6期346-350,共5页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金资助项目"环境胁迫下森林昆虫种群分化与适应的分子机制研究"(33771739)

摘　　要：采用简易静态熏气系统在浓度为17mg/m3的SO2胁迫下,研究异色瓢虫Harmonia axyridis(Pal-las)3龄幼虫和成虫对桃粉大尾蚜Hyaloptera amygdales(Blanchard)捕食的功能反应及自身密度干扰作用。研究结果表明,捕食功能反应属于Holling-Ⅱ型圆盘方程,SO2可以提高异色瓢虫3龄幼虫、成虫捕食能力,异色瓢虫的捕食量随着猎物密度的增加而增大,对桃粉大尾蚜的寻找效应也有增加的趋势,同时SO2减缓了随着异色瓢虫自身密度增加存在的干扰作用。The functional response of Harmonia axyridis to Hyaloptera amygdales and own density interference effect Under SO2 Intimidate were studied in closed chamber. The results showed that they belonged to Holling-Ⅱ model. The larger of predation number was observed in the higher of prey density.Sulfur dioxide increase feeding ability and search effect 3 ages young insects and imago of Harmonia axyridis to Hyaloptera amygdales. Sulfur dioxide decreased interfere effect between Hyaloptera amygdales.

关 键 词：SO2 异色瓢虫 桃粉大尾蚜 捕食作用 

分 类 号：S763.306.4[农业科学—森林保护学]