【摘要】 采用6种分布型指数法分析研究白斑新灰蝶(Neolycaena tengstroemi)卵在寄主柠条上的空间分布型,利用Taylor幂法则和Iwao回归方程分析了聚集原因。结果表明,白斑新灰蝶卵在柠条上呈现聚集分布,聚集性指标均>1;其聚集原因是由昆虫自身的产卵习性或光照、温度及柠条自身的长势等环境因素引起的。采用Iwao方法确定了白斑新灰蝶卵的田间最适理论抽样数和序贯抽样表。更多还原

【Abstract】 In recent years,Neolycaena tengstroemi has become a serious pest for Caragana microphylla.The distribution pattern of overwintering eggs on C.microphylla was determined by 6 spatial distribution pattern indices,and the reasons for aggregation were analyzed using Taylors power principle and Iwaos regression equation.The results indicated that the spatial distribution pattern of overwintering eggs of N.tengstroemi was aggregation distribution,aggregation indices were higher than 1.The reason for this aggregation was due to the oviposition habit of insects themselves,or the environmental factors such as light,temperature and the growth of C.microphylla.On the basis of the distribution pattern,the optimum sampling number and sequential sampling table were calculated using Iwao’s method.更多还原