内蒙古典型草原不同围封年限样地访花昆虫多样性

发布时间：2018-06-02 14:40

本文选题：访花昆虫 + 多样性　；参考：《生态学杂志》2017年10期

【摘要】：本文对内蒙古锡林郭勒退化典型草原围封样地,1983年围封禁牧区域(A样地)、1996年围封禁牧区域(B样地)和未围封的自由放牧区(C样地)的访花昆虫群落多样性及时序特征、访花频率进行了研究。结果表明:在3个样地共采集到访花昆虫成虫标本2131头,隶属7目71科,共183种;其中,A样地有7目60科154种1133头,B样地有6目59科158种847头,C样地有3目13科21种151头;A样地访花昆虫的数量最多,B样地访花昆虫的种类最多,C样地访花昆虫的种类与数量均最少;B样地7月份的访花昆虫Shannon多样性指数(3.12)、Pielou均匀度指数(0.86)和Margalef丰富度指数(7.16)均最高;C样地6月份的访花昆虫Berger-Parker优势度指数(0.15)最高。访花昆虫的Shannon多样性指数与Pielou均匀度指数随月份的变化趋势一致,而与Berger-Parker优势度指数相反;通过Jaccard群落相似性系数计算可知,A样地与B样地的访花昆虫Jaccard群落相似性系数(0.25)最高;A样地与C样地的访花昆虫群落相似性系数(0.16)最低;不同样地各月份的优势开花植物的优势访花昆虫不同,访花频率也不同。
[Abstract]:In this paper, the time sequence characteristics of the diversity of flower visiting insects in the enclosed area of the typical steppe of Xilingol, Inner Mongolia, in 1983, the enclosed forbidden grazing area (A like land), the closed grazing area (B like land) and the unenclosed free grazing area (C like land) in 1996, were studied. The results showed that the adult insects were collected in 3 plots. 2131 specimens, belonging to 7 orders, 71 families, 183 species, including 7 orders, 60 families, 154 species, 1133 heads, 6 orders, 59 families and 158 847 heads, C like plots of 3 13 families, the largest number of flower insects in the A sample, the most species of flower visiting insects in B like land, and the least species and number of C like flower insect visiting insects; and more than Shannon in July, Shannon of B sample plots Shannon more Shannon visiting insects Shannon more Shannon. The homogeneity index (3.12), the Pielou evenness index (0.86) and the Margalef richness index (7.16) were the highest, and the Berger-Parker dominance index (0.15) of the flower visiting insect in June was the highest. The Shannon diversity index and the Pielou evenness index of the flower visiting insects were in accordance with the changing trend of the month, and the opposite of the Berger-Parker dominance index; through Ja. The similarity coefficient calculation of ccard community shows that the similarity coefficient (0.25) of Jaccard community in A like land and B like site is the highest, and the similarity coefficient of flower visiting insect community (0.16) is the lowest in A like land and C like land, and the dominant flowering plants in each month are different and the frequency of flower visiting is different.
【作者单位】：内蒙古大学生命科学学院;
【基金】：国家自然基金项目(31460111和31000975) 内蒙古自然科学基金重大项目(2015ZD05)资助
【分类号】：S812

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