Mohamed Ahmed M M, Dairri M F
Trop Anim Health Prod. 1987 Feb;19(1):11-20. doi: 10.1007/BF02250840.
Using biconical traps the distribution, population composition, insemination rate, pregnancy, age structure and trypanosome infection rate of G. pallidipes were studied during the wet season 1982 and the dry season 1983 at Mareerrey Somalia. Flies restricted to the riverine gallery forest in the dry season become dispersed into approximately 1 km of the Acacia thickets in the wet season. There was no significant variation in population components of G. pallidipes between wet and dry seasons. The male:female ratio remained at 0.5:1 in both seasons. The insemination rate of females was significantly high during the wet season. Pregnancy stages were not statistically different between the two study periods. A significantly greater proportion of females that were below age category 4 were found in the wet season. The trypanosome infection rate was 2.6% and 1.5% in the wet and dry seasons respectively. Flies were found infected with only the vivax and congolense group trypanosomes. A linear positive correlation existed between the trypanosome infection rate and the physiological age of females.
1982年雨季和1983年旱季期间，在索马里的马雷雷，使用双锥形诱捕器对苍白按蚊的分布、种群组成、受精率、妊娠情况、年龄结构和锥虫感染率进行了研究。在旱季局限于河边长廊林的苍蝇，在雨季会扩散到约1公里范围内的金合欢灌丛中。苍白按蚊的种群组成在雨季和旱季之间没有显著差异。两个季节的雌雄比例均保持在0.5:1。雨季雌性的受精率显著较高。两个研究时期之间的妊娠阶段没有统计学差异。在雨季发现年龄类别低于4岁的雌性比例显著更高。雨季和旱季的锥虫感染率分别为2.6%和1.5%。发现苍蝇仅感染间日疟原虫和刚果锥虫组的锥虫。锥虫感染率与雌性的生理年龄之间存在线性正相关。
