棉田蜘蛛群落结构及优势种分析  

ANALYSIS FOR THE DOMINANT SPECIES AND STRUCTURE OF SPIDER COMMUNITIES IN COTTON FIELDS

作　　者：董应才[1] 汪世泽[1] 竺锡武 

机构地区：[1]西北农业大学植保系 [2]湖南农科院植保所

出　　处：《蛛形学报》1994年第2期137-140,共4页Acta Arachnologica Sinica

摘　　要：通过棉田定点调查,初步鉴定陕西大荔棉田计有蜘蛛8科17种,其中主要成分依次为狼蛛、皿蛛、球蛛、蟹蛛,园蛛和肖蛸等;蜘蛛群落结构在棉花苗期和蕾铃期有明显不同;Shannon-wiener多样性指数,simpson优势度和均匀度等分析,棉花苗期物种多样性明显小于蕾铃期,优势种为丁纹豹蛛和草间小黑蛛;分析了丁纹豹蛛种群消长动态。Based on preliminary investigation in fixed position in Dali Shanxi,there were more than 17 species of spider in cotton fields, which belonged to Lycosidae,Linyphiidae,TheTidiidae, Thomisidae,ATaneidae,Clubionidae,Tetragnathidae and Salticidae . The structure of spider communities in seeding stage were different from buds and bolls stage's. Analysed by Shannon-Wiener's species diversity index and Simpson's eveness index et althe species diversity in seeding were apparently less than in buds and bolls'.The dominant species were Pardosa T-insignita and Erigonidium gTamimicola. The population dynamics of Pardosa T-insignita in cotton fields were analysed.

关 键 词：蜘蛛 丁纹豹蛛 群落结构 优势种 

分 类 号：S433.7[农业科学—农业昆虫与害虫防治] Q959.226[农业科学—植物保护]