【摘要】 初步研究了美国引进的迪氏跳小蜂Zarhopalus debarri与本地粉蚧长索跳小蜂Anagyrus dactylopii(Howard)竞争的情况,结果表明,即使在种群数量占优的情况下,在竞争中迪氏跳小蜂仍处于明显的劣势,而且两种寄生蜂在混合种群中相互排斥的。在林间释放迪氏跳小蜂,也未能在林间找到子代蜂。推测林间存在的本地蜂是影响外引蜂的定居与繁殖因素之一。更多还原

【Abstract】 Competition of Zarhopalus debarri, introduced from America, and Anagyrus dactylopii, a local parasite of Oracella acuta(Lobdell), were studied. The results were showed that, even in the dominant populations, Z.debarri was still at a distinct disadvantage in competition, and two parasites in mixed populations were mutual exclusion. In the place of Z.debarri released, it was failed to find in the progeny of parasites. It was speculate that the existence of local parasites was an effect factor of Z.debarri settlement and reproduction in the forest.更多还原