河南医科大学学报2000，Vol.35Issue(5)：416-421,6.
自然界中华按蚊生态生命表的制定
Establishment of ecological life tables of Anopheles sinensis in nature
摘要
Abstract
Aim: To observe the dynamics' changes of Anopheles sinensis under natural conditions. MethodS: By means of thelife table, the 5th, 6th, 7th and 8th generations of Anopheles sinensis natural population in Zhengzhou region were studied from1994 to 1995. Results: According to the life tables established we found that during rainy seasons, ks was the highest among allof the k-values, followed by kg. Key factor analysis was conducted by using Varley' s diagram and Podoler' s regression method re-spectively. The survival curves of 5 ～ 8 generations were plotted in terms of the life table data in 1995. The population tendencyindices (Ⅰ) of all life tables were greater than 1 and the I-value of the 5th generation was the highest. Conclusion: Thae first keyfactor of the natural population of An. sinensis was the death of the 1 ～ 2 instar larvae caused by the heavy storm and the secondwas the predatory death of the 3 ～ 4 instar larvae. The highest mortality occurred at the stage of 1 ～ 2 instar larvae. The type ofsurvival curves belonged to slobodkin Ⅳ. The results suggest that the number of the natural population of An. sinensis inZhengzhou region increases during the June, July and August, and the inerease in the number of the 5th generation (I=34.458 4)was the highest.关键词
生命表/关键因素/中华按蚊Key words
life table/key factor/Anopheles sinensis分类
医药卫生引用本文复制引用
..自然界中华按蚊生态生命表的制定[J].河南医科大学学报,2000,35(5):416-421,6.基金项目
国家级继续医学教育项目19990l05002河南省医药卫生科学研究重点项目 95016 （）
