摘要
研究了稻田两种飞虱及两种捕食性天敌共存系统的生态位。在时间方面：生态位宽度指数以蜘蛛最高；生态位重迭指数以蜘蛛对褐飞虱最高；生态位相似性比例指数以蜘蛛对盲蝽最高。在空间方面：生态位宽度指数以盲蝽最高；生态位重迭指数以蜘蛛对褐飞虱最高；生态位相似性比例指数以蜘蛛对盲蝽最高。应用生态位概念分析了共存系统中各种群间的关系。
The ecological niches system of two plant hoppers coexisted with two natural enemies in rice fields were studied.In time aspect:the niches breadth index of spiders and the niches overlap index of spiders to brown rice plant hopper (Nilaparvata lugens) and the niches similarity index of spiders to plant bug were the highest. In space aspect:the niche breadth index of plant bug and the niche overlap index of spiders to brown rice plant hopper (N.lugens) and the niche similarity index of spiders to plant bug were the highest among this system. The relation between different populations were analysed according to the theory of ecological niches.
出处
《贵州农业科学》
CAS
1998年第2期34-37,共4页
Guizhou Agricultural Sciences
关键词
稻飞虱
捕食性天敌
共存系统
生态位
水稻
plant hopper
natural enemies
coexistence system
ecological niche
