【作者】 赵志模； 郭依泉； 朱文炳；

【Author】 Zhi-mo Zhao Yi-quan Guo Wen-bin Zhu (Department of Plant Protection,Southwest Agricultural University,Chongqing 630716)

【机构】 西南农业大学植保系；

【摘要】 本文研究了为害柑桔叶片的14种吸汁性害虫的时间,空间及营养生态位,提出了竞争群的概念及划分竞争群的初步方法。以时间、空间、营养三维生态位重叠值作为害虫物种对环境资源利用的相似性指标,通过模糊聚类分析,将14个物种分为三个竞争群及四个分离种。更多还原

【Abstract】 Niche widths and overlaps were measured for 14 species of arthropod suckers on citrus leaves on the dimension of occurring season,distribution in canopy and leaf ages favorite.A new technique classifying guilds was developed.Fuzzy clustering method was employed to classify guilds using multidimensional niche overlaps as the similarities of environmental resources exploitation.3 gilds and 4 isolated species were identified.Intensive interspecific competition occurred within guilds but weak interspecific competition occurred between members of different guilds.更多还原