“优势种”的概念原是从生物的地理分布角度提出来的,在分布区内种群数量多的物种称为优势种。近年来在开展天敌资源调查中,有把数量多的天敌种类(即优势种)看成是在生防中占优势的(即有希望成为优秀天敌的)种类。这就把天敌的数量和生防的有效性混淆起来了。本文提出这个问题,供讨论。 The concept of “dominant species” was originally proposed from the perspective of the geographical distribution of organisms. Species with large populations in the distribution area are called dominant species. In the investigation of natural enemy resources conducted in recent years, a large number of natural enemy species (ie dominant species) are considered as the species predominant in biological defense (ie, promising to be excellent natural enemies). This confuses the number of natural enemies with the effectiveness of biological control. This paper presents this issue for discussion.