关键词: 蒙山, 蚊虫, 生物群落, 多样性

Abstract: Objective To compare on the biological diversity of mosquitoes at different altitude Mengshan mountains.Methods Apply human-bait net trap,human-bait landing catches,cow-bait landing catches,human-bait net catches and whipping net methods to obtain adult mosquitoes,and the larvae was counted gaining by 50-500 ml spoons,and record the environmental.The indexes of abundane and diversity(SAD),ralative rate species(RR),relative extreme amount species(RA),community uniformiry(CU),biomass and probability of inter-specific encounter(PIE),the D_max and species density(SD) were investigated and compared.The similarity indice between different connunities were derived statistically.Results Total 2 013 mosquitoes were collected,of which 1 724 were at 200-300 m,accounting for 85.6%,257 at 700-800 m,accounting for 12.8%,and only 32 at 1 156 m,the top of the mountains.The seven index are 13,16.67,76.92,0.272,0.310,0.71,1 724 at 200-300 m;12,58.33,16.67,0.443,0.417,0.69,157 at 700-800 m,and 9,22.22,0.00,0.845,0.750,0.25,32 at 1 156 m.The RA was more at 200-300 m,and the RR was more at 700-800 m.Conclusion The biological diversity of community structures of mosquioes depend on their habitat,the SAD and SD of mosquito communities in higher altitude are lower than those in lower altitude,but the CU and PIE are hight.When the RA is higher,the PIE is lower,then the D. is higher also.