云南南部新建村庄与现有村庄中三带喙库蚊与伪杂鳞库蚊种群动态的比较

对云南省南部新建移民东方红村和现有的龙塘村中三带喙库蚊与伪杂鳞库蚊种群动态情况进行了比较。结果表明:2个村庄中这2种媒介蚊虫的种群动态趋势不同;东方红村房屋内,除6月三带喙库蚊种群密度比伪杂鳞库蚊明显要高以外,其它月份二者种群密度差异不明显(P>0.05);整个诱集期间,伪杂鳞库蚊的种群密度(D)和种群优势度(d)在东方红村房屋(D=10只.灯-1,d=0.04)与牛舍(D=52只.灯-1,d=0.06)中都比龙塘村房屋(D=33只.灯-1,d=0.10)与牛舍(D=99只.灯-1,d=0.09)中的低。表明云南南部地区新移民村建设中,乙脑媒介种群随着环境开发产生变化。

Dynamics of Culex tritaeniorhynchus and Culex pseudovishnui populations in newly built and present villages in southern Yunnan Province

In this paper,a comparative study was conducted on the dynamics of Culex tritaeniorhynchus and Cx.pseudovishnui populations in the newly built migration village Dongfanghong and present village Longtang in southern Yunnan Province.The results showed that in the human houses of Dongfanghong village,there was no difference in the population density between the two mosquito species,except that Cx.tritaeniorhynchus had a higher population density than Cx.pseudovishnui in June(P>0.05).During the whole period of trapping,the density(D)and dominance(d)of C.pseudovishnui in human houses(D=10 mosquitoes per light,d=0.04)and cattle pens(D=52 mosquitoes per light,d=0.06)of Dongfanghong village were higher than those(human house:D=33 mosquitoes per light,d=0.10;cattle pen:D=99 mosquitoes per light,d=0.09)of Longtang village,suggesting that the population characters of the vector mosquitoes of Japanese B encephalitis would be changed with the construction of new migration village.