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內(nèi)蒙古典型草原不同圍封年限樣地訪花昆蟲多樣性

發(fā)布時間:2018-06-02 14:40

  本文選題:訪花昆蟲 + 多樣性; 參考:《生態(tài)學雜志》2017年10期


【摘要】:本文對內(nèi)蒙古錫林郭勒退化典型草原圍封樣地,1983年圍封禁牧區(qū)域(A樣地)、1996年圍封禁牧區(qū)域(B樣地)和未圍封的自由放牧區(qū)(C樣地)的訪花昆蟲群落多樣性及時序特征、訪花頻率進行了研究。結(jié)果表明:在3個樣地共采集到訪花昆蟲成蟲標本2131頭,隸屬7目71科,共183種;其中,A樣地有7目60科154種1133頭,B樣地有6目59科158種847頭,C樣地有3目13科21種151頭;A樣地訪花昆蟲的數(shù)量最多,B樣地訪花昆蟲的種類最多,C樣地訪花昆蟲的種類與數(shù)量均最少;B樣地7月份的訪花昆蟲Shannon多樣性指數(shù)(3.12)、Pielou均勻度指數(shù)(0.86)和Margalef豐富度指數(shù)(7.16)均最高;C樣地6月份的訪花昆蟲Berger-Parker優(yōu)勢度指數(shù)(0.15)最高。訪花昆蟲的Shannon多樣性指數(shù)與Pielou均勻度指數(shù)隨月份的變化趨勢一致,而與Berger-Parker優(yōu)勢度指數(shù)相反;通過Jaccard群落相似性系數(shù)計算可知,A樣地與B樣地的訪花昆蟲Jaccard群落相似性系數(shù)(0.25)最高;A樣地與C樣地的訪花昆蟲群落相似性系數(shù)(0.16)最低;不同樣地各月份的優(yōu)勢開花植物的優(yōu)勢訪花昆蟲不同,訪花頻率也不同。
[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.
【作者單位】: 內(nèi)蒙古大學生命科學學院;
【基金】:國家自然基金項目(31460111和31000975) 內(nèi)蒙古自然科學基金重大項目(2015ZD05)資助
【分類號】:S812

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