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分析物种的数量和分布是生态学的重要课题,也与害虫生物抑制的各个程序有关。因为通过引进外来天敌(传统的生物防治)或利用本地天敌来抑制有害生物种群的生物防治实践都关系到改变所选用物种的数量和分布。(Batra 1981)传统的生物防治和增强自然发生的生物防治实践,在生态学上和经济学上曾经获得成功(Huffaker 和 Messenger 1976),而全世界在制定对输出—输入选择外来天敌的标准却引起了争论,这些争论涉及到确定“
Analysis of the number and distribution of species is an important topic of ecology and is also related to various procedures for pest bio-suppression. Because biological control practices that involve the introduction of exotic predators (traditional biological control) or the use of native predators to suppress pest populations are all linked to changing the number and distribution of species of choice. (Batra 1981) Traditional biocontrol and natural enhance biological control practices have been ecologically and economically successful (Huffaker and Messenger 1976), and the world is setting standards for the selection of foreign predators for export-import Aroused controversy, these controversies involved determining the "