稻田两种狼蛛种间相互作用及对白背飞虱复合捕食作用的研究

STUDIES ON THE INTERSPECIFIC INTERACTION OF TWO LYCOSIDAES IN PADDY FIELDS AND THEIR COMPLEX PREDATION ON SOGATELLA FURCIFERA

室内研究结果表明,拟水狼蛛对白背飞虱的捕食作用小于拟环纹豹蛛,两种狼蛛种内种间均存在干扰作用,且主要表现为残杀作用,狼蛛密度越高,干扰作用越大;拟环纹豹蛛对拟水狼蛛的残杀作用大于对其身的残杀作用,拟水狼蛛只存在自相残杀作用,对拟环纹豹蛛无残杀作用。

The indoor study results showed that, the predation of Pirata subpiraticus on S. furcifera was less than that of Pardosa pseudoannulata; the interference action both intra specific and interspecific in two Lycosidaes existed and was showed primarily by the cruel killing action. and the higher the Lycosidaes density was, the larger the interference action was; the cruel killing action of Pardosa pseudoannalata on Pirata subpiraticus was larger than on itself, and that of P.subpiraticus on itself existed, but on Pardosa Pseudoannalata did not do.