| 祁连山高寒草甸生态系统昆虫群落特征 |
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| 引用本文： | 蔡 海,李婧梅,程 茜,褚 晖,陈懂懂.祁连山高寒草甸生态系统昆虫群落特征[J].草业科学,2012,29(1):121-127. |
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| 作者姓名： | 蔡 海 李婧梅 程 茜 褚 晖 陈懂懂 |
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| 作者单位： | 中国科学院西北高原生物研究所;中国科学院研究生院;青海师范大学数学系 |
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| 基金项目： | 国家自然科学基金，中国科学院知识"十二五"预研重要方向项目 |
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| 摘 要： | 2009年7月中旬于祁连山地区的中国科学院海北高寒草甸生态系统研究站，在滩地草甸、金露梅（Potentilla fruticosa）灌丛、山坡草甸和沼泽化草甸4个不同的生境中对昆虫进行百网取样，共获得908头昆虫。分别隶属于10目42科 65种。发现该地区双翅目昆虫是最繁盛的类群：第2个优势目为膜翅目，其次优势目为鞘翅目。昆虫物种多样性和丰富度依次为滩地草甸>金露梅灌丛>山坡草甸>沼泽化草甸；均匀度差异不大；优势度指数沼泽化草甸最高，滩地草甸最低。滩地草甸和山坡草甸昆虫群落的相似性最大；其次是金露梅灌丛；差异最大的是沼泽化草甸。通过分析发现，生境的变迁和气候的变化引起了昆虫群落结构和多样性的差异变化。
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| 关 键 词： | 高寒草甸 群落特征 生物多样性 相似性指数 聚类分析 全球变化 |
Features of insect communities of alpine meadow ecosystem in Qilian Mountain regions |
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| CAI Hai,LI Jing-mei,CHENG Xi,CHU Hui,CHEN Dong-dong,XU Shi-xiao,ZHAO Xin-quan,ZHAO Liang.Features of insect communities of alpine meadow ecosystem in Qilian Mountain regions[J].Pratacultural Science,2012,29(1):121-127. |
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| Authors: | CAI Hai LI Jing-mei CHENG Xi CHU Hui CHEN Dong-dong XU Shi-xiao ZHAO Xin-quan ZHAO Liang |
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| Institution: | 1(1.The Northwest Institute of Plateau Biology,Chinese Academy of Sciences,Xining 810001,China; 2.Graduae University of Chinese Academy of Sciences,Beijing 100001,China; 3.The Department of Mathematics,Qinghai Normal University,Xining 810008,China) |
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| Abstract: | The butterfly net was used to survey the insects on four different biotopes at the Haibei Research Station in the middle of July 2009 for determining the features of insect communities of alpine meadow by 100 times.A total of 908 insects were collected which belonged to 10 orders,42 families,and 65 species.The Diptera insects were dominant groups and the main associate groups were Hymenoptera and Coleoptera insects.Insect species diversity and abundance index was typical meadow>Potentilla fruticosa shrubland>slope meadow>swamp meadow;however the evenness index was not different among four biotopes.The dominant index was the highest in the swamp meadow and was the lowest in the typical meadow.The insect community of typical meadow had the biggest similarity with that of the slope meadow and had the bigger similarity with that of the P.fruticosa bush;however the insect community of typical meadow had the lowest similarity with that of the swamp meadow.This study suggested that the change of habitat and climate altered the community structure and biodiversity of insects. |
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| Keywords: | alpine meadows the features of communities biological diversity similarity index cluster analysis global change |
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