丽江大树蜂幼虫空间分布型研究  

A Study on the Spatial Distribution Pattern of Urocerus lijiangensis

作　　者：成定宽[1] 潘涌智[1] 

机构地区：[1]西南林学院保护生物学学院,云南昆明650224

出　　处：《西南林学院学报》2006年第5期65-67,共3页Journal of Southwest Forestry College

基　　金：天然林保护工程国家重点科技推广项目(2001-天保工程15号)资助

摘　　要：应用多个聚集度指标和Iwao、Taylor等回归分析方法,对丽江大树蜂幼虫的空间分布型进行研究,结果表明:其空间分布型为聚集分布;用B lackith提出的“聚集均数”法对聚集原因的分析表明:丽江大树蜂幼虫的聚集现象是由环境因素引起的;在回归分析检验中,以兰星平的La-m回归模型拟合效果最佳.The spatial distribution pattern of Urocerus lijiangensis larvae was studied by means of applying several aggregation indices and regression analysis methods of Iwao, Taylor and Lan xinping etc. It was indicated by the results that the spatial distribution pattern of the Urocerus lijiangensis larvae was aggregation distribution, and it was determined by the average aggregation method proposed by Blackith that the aggregation of Urocerus li- jiangensis larvae was principally caused by the environmental factors. Among the several regression analysis methods, the Lα -m regression model was most appropriate with higher linear correlation coefficient.

关 键 词：丽江大树蜂 空间分布型 聚集度指标 回归分析法 

分 类 号：S763.430.3[农业科学—森林保护学]