山西省晋西7～8月草地蝗虫种的多样性及丰富度研究

研究了山西省吕梁市方山县草地蝗虫种的多样性指数、丰富度和均匀度。结果表明该地区7～8月草地蝗虫有7科、18属、27种。其中,山地草原有6科、17属、20种;山地草甸有4科、9属、12种;灌木草丛有3科、6属、8种,斑翅蝗科和网翅蝗科是各群落的优势类群。3个草地类的蝗虫群落共有种较少,证明各群落具一定的相对独立。α多样性指数依次是:山地草原的S=20,E=0.719 6,D=0.933 0,H′=2.823 7;山地草甸的S=12,E=0.933 0,D=0.0.818 5,H′=2.318 5;灌木草丛的S=8,E=0.912 2,D=0.651 6,H′=1.912 6。β多样性指数依次是:Ⅰ—Ⅱ=8,Ⅰ—Ⅲ=11,Ⅱ—Ⅲ=7。证明山地草原蝗虫群落比其余2个群落更加稳定。

Study on grassland grasshopper diversity during summer in Shanxi Province

The grassland grasshopper diversity during summer in Fangshan County of Lvliang City,Shanxi Province was studied.The result indicated that there were 7 families,18 genus and 27 species,in which,6 families,17 genus and 20 species were found in mountain grassland,4 families,9 genus and 12 species were found in mountain meadow,3 families,6 genus and 8 species were found in shrubland.The species from Arcypteridae and Oedipodidae were dominant.The number of mutual species was rare in 3 types of grassland which indicated that the grasshopper community was independent each other.The α diversity index of 3 types of grassland was as follows:S=20,E=0.719 6,D=0.933 0,H′=2.823 7(mountain grassland);S=12,E=0.933 0,D=0.0.818 5,H′=2.318 5(mountain meadow);S=8,E=0.912 2,D=0.651 6,H′=1.912 6(shrubland).The β diversity index wasⅠ-Ⅱ=8,Ⅰ-Ⅲ=11,Ⅱ-Ⅲ=7.It indicated that the community in mountain grassland was more stable than the rest.