摘要
对合肥地区小麦穗期的三种蚜虫及其主要天敌的生态位宽度及重叠值进行了测定,分析了各种群在资源利用方面的种间关系。三种蚜虫蚜茧峰、瓢虫主要分布在麦株40cm以上的部位,每两种群之间的垂直生态位重叠值都达0.7以上;每种水平生态位宽度值都在0.6以上,每两种群之间水平生态位重叠值都在0.63以下。生态位随时间有一定的变化。麦蚜天敌的优势类群为蚜茧峰。
The values of niche breadth and niche overlap of three aphid species and their main naturalenemies during wheat ear growth in Hefei region were studied, and the interspecies relation wasanalysed in light of resourses. The three aphid species, aphid parasites and ladybugs distributedover the parts of wheat plant above 40cm from the ground, and the values of vertical nicheoverlap between each 2 species were more than 0.6, and all values of horizontal niche overlapwere less than 0. 63. The niches varied slightly with time. The predominant group of the naturalenemies to wheat aphids was aphid parasites.
出处
《安徽农业大学学报》
CAS
CSCD
1993年第1期25-30,共6页
Journal of Anhui Agricultural University
关键词
小麦
蚜虫
天敌
空间生态位
Wheat ear aphid
Analysis of hypervolume niche
Niche breadth
Niche overlap
