%0 Journal Article
%T Temporal and Spatial Dynamics of Cicadulina bipunctella Natural Populations<br>二点叶蝉自然种群的时空动态
%A LI Xiao-zhen
%A LIU Ying-hong
%A ZHAO Zhi-mo
%A ZHOU Li-fei
%A <br>李小珍
%A 刘映红
%A 赵志模
%A 周利飞
%J 动物学研究
%D 2004
%I Chinese Academy of Sciences
%X The K value of negative binomial distribution less affected by density was chosen to describe the spatial and temporal patterns of the natural population of Cicadulina bipunctella (Mats) at three elevations.Spatial distribution information of the population showed either clumped (aggregated) or uniform patterns during the period of maize growth.The population of C.bipunctella distributed uniformity (K<0) at the last twenty days in April,and spatial aggregation (K>0) in May,then dispersal (K<0) from the first ten-day period to the middle ten days of June and aggregation (K>0) again from the last ten-day period of June to the first ten-day period of July.The high elevation had the highest degree of aggregation in May,followed by the low elevation from the last ten-day of June to the first ten-day of July according to the K values.Based on the coefficients of Taylor's power law and Iwao's M *-X regression,the degree of aggregation of the high elevation and the middle elevation were higher than the low elevation during the whole period of maize growth.
%K Cicadulina bipunctella
%K Temporal and spatial dynamics
%K Negative binomial distribution<br>二点叶蝉
%K 自然种群
%K 负二项分布
%K 昆虫
%K 时空动态
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=7C502F1A6798ACE1B8C57E291C48C7F1&aid=C15680F3750B0738&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=38B194292C032A66&sid=78F0EFE028BD3783&eid=6ED15D8DCB279BC4&journal_id=0254-5853&journal_name=动物学研究&referenced_num=3&reference_num=13