摘要
在猎物卵不同密度下,拟长毛钝绥螨(Amblyseius pseudolongispinosus)随其种群密度的增加(不超过10头/叶片),个体之间不存在干扰作用;捕食螨的搜寻活动和产卵分布对猎物分布的变动有一定的时滞性;聚集行为往往是由于某些生境中猎物被消耗殆尽后引起的,这与捕食螨在猎物卵不同密度下的扩散作用和干扰作用较弱有关。
This paper revealed that there was no interference with the density of predacious phytoseiid mite, Amblyseius pseudolongispinosus, increased. Its searching effort and egg distribution usually lagged behind the changeable prey distribution. The predator aggregated cnly when prey got scarce in some patches, owing to its poor dispersion and internal interference.
出处
《生态学报》
CAS
CSCD
北大核心
1991年第1期60-65,共6页
Acta Ecologica Sinica
关键词
钝绥螨
叶螨
干扰作用
收寻效率
phytoseiid mite, interference,aggregation,searching efficiency.
