摘要
通过3种稻飞虱空间生态位和营养生态位的调查,测定出生态位宽度、生态位重叠、比例相似性和种间竞争系数.根据3种稻飞虱在稻田中发生和消长情况,揭示了它们在营养需求上的竞争关系,以及在稻田中的地位和作用.
The niche breadth, the niche overlap, the percentage similarity and the interspecific competition coefficient of three species of rice planthoppers (Laodelphax striatellus, Sogatella furcifera and Nilaparvata lugens) were estimated by means of investigating their spatial niche and trophic niche. The competitive relation of three rice planthoppers in trophic necessary and their position and function in the paddy fields were also revealed according to the population occurrence and fluctuation of them.
