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Hubei Agricultural Sciences
1996
(3)
棉田天敌蜘蛛的空间格局研究
作 者：
何洪俊;柯道秀;熊映清;樊孝贤
单 位：
湖北省农科院植保所
关键词：
棉田，天敌蜘蛛，空间格局
摘 要：
用Ｍ／Ｍ回归和Ｔａｙｌｏｒ幂指数法则，探讨棉田主要天敌蜘蛛的空间格局。结果表明，草间小黑蛛、三突花蛛、四点亮腹蛛和天敌蜘蛛群体在田间均呈均匀分布，且密度越高分布越均匀。还用（Ｍ＋１）／Ｍ指标法分别分析了三突花蛛和天敌蜘蛛群体在不同时期的种群趋势。
译 名：
Study on spatial distributions of predacious spiders in cotton fields
作 者：
He Hongiun(Hubei Academy of Agricultural Sciences,Wuhan 430064)
关键词：
cotton field,predacious spiders,spatial distribution
摘 要：
With M/M regression nlodel and Taylor’s power law,spatial distributions of preda-cious spiders in cotton fields were discussed. The results showed that Erigonidium gramini-colum,Misumenopos tricuspuidata,Singa pygmaea and all of the predacious spiders indicatedeven distributions in cotton fields,and the higher their densities were, the cvener their distribu-tions were. The population trends of M. tricuspidata and all of the predacious spiders were altsoanalysed respectively with(M+1)/M index.
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