红圆蚧3种寄生蜂的寄生作用研究

Parasitism of three parasites on Aonidiella aurantii

研究了红圆蚧（Ａｏｎｉｄｉｅｌｌａａｕｒａｎｔｉｉ）３种寄生蜂（盾蚧长缨蚜小蜂Ｅｎｃａｒｓｉａｃｉｔｒｉ－ｎａ，岭南黄蚜小蜂Ａｐｈｙｔｉｓｌｉｎｇｎａｎｅｓｉｓ，印巴黄蚜小峰Ａｐｈｙｔｉｓｍｅｌｉｎｕｓ）在不同温度、不同寄生物密度、不同寄主密度组合下的功能反应．攻击率印巴蜂最大，岭南蜂次之，长缨蚜小蜂蜂最小．３种寄生蜂在不同温度下的攻击率都近于正态分布．建立了含干扰效应、温度效应的功能反应模型，两个模型的各参数均有明确的生物学意义，模拟效果好．

In this paper, the functional response of Aonidiella aurantii on three parasites Entomolo-gy, Aphytis lingranesis and Aphytis melinus are studied under different combinations ofhost density, parasite density and temperature. The attacking rate of Aphytis melinus isthe largest, followed by Aphytis lingnanesis and Encarsia oitrina. Under different temperature, the attacking rates of parasites are similar to normal distribution. Two functionalresponse models including interference and temperature effects are established, the parameters of which all have explicit biological meaning and the fitting results are promising.