烟稻邻作对稻田蜘蛛功能团的影响  

Effects of paddy fields neighboring to tobacco fields on the spider guild in paddy fields

作　　者：吴琼梅[1,2] 林胜[1] 尤民生[1] 郑云开[1] 姚凤銮[1] 

机构地区：[1]福建农林大学应用生态研究所,福建福州350002 [2]邵武市农业局植保站,福建邵武354000

出　　处：《福建农林大学学报（自然科学版）》2011年第4期337-340,共4页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家"973"计划项目(2006CB100204;2006CB1020066)

摘　　要：采用吸虫器和陷阱法,以单作稻田为对照,调查研究了烟稻邻作系统对稻田蜘蛛功能团的影响.结果表明:随着烟田生境的变化,烟田蜘蛛大量向稻田迁进,这对稻田蜘蛛功能团的重建起着重要的作用.另外,邻作稻田蜘蛛功能团的Shan-non-Wiener多样性指数(H′)、Pielou均匀性指数(E)较单作稻田高,而Simpson优势集中性指数(C)则较低,表明烟稻邻作系统较单作稻田具有相对稳定的蜘蛛功能团结构.Field trials were carried out to determine the effects of paddy fields neighboring to flue-cured tobacco fields on the spider guild in paddy fields.Spiders were sampled by a suction sampler and pitfall traps in the fields.The results generally demonstrated that spiders tended to migrate from tobacco fields to paddy fields,which indicated that tobacco habitats could function as a species pool and source of spiders.In addition,during the whole growing season of rice,paddy fields neighboring to flue-cured tobacco fields had higher Shannon-Wiener′s diversity index（H′） and Pielou′s evenness index（E）,and lower Simpson′s dominant concentration index（C） for spider guild than monocultural paddy fileds,which indicated that paddy fields neighboring to flue-cured tobacco fields had a more stable structure of spider guild than monocultural paddy fields.

关 键 词：生境调控 捕食性天敌 迁移 生物多样性 

分 类 号：S433[农业科学—农业昆虫与害虫防治] Q968.1[农业科学—植物保护]