摘要
一、引言在生态学中研究种群动态有两个分支,一是追踪数量随时间变化,既所谓数量动态的问题,另一是考查种群个体在空间散布状态的变化,即所谓空间动态的问题。关于空间动态中分布型的研究过去多采用传统的块面调查。
Spatial dynamics of 3 wheat aphid populations are investigated.The aggregation and disper-sion indices of 3 wheat aphids and their mixed populations are compared under the sameenvironment at different time.It is found that the distribution of wheat aphid populationand its colonization within population show a tendency of periodical aggregation and disper-sion with time sequence.It is the first time in the paper to describe this tendency withresistant free vibration model,which is more suitable than Fourier Series.
出处
《生态学杂志》
CAS
CSCD
北大核心
1990年第4期16-19,F004,共5页
Chinese Journal of Ecology
关键词
麦蚜
自然种雄
空间动态
wheat aphids
spatial dynamics
resistant free vibration model
