BITING ACTIVITY OF BLACK FLIES IN GUATEMALA - PARITY RATES AND DIFFERENCES BETWEEN LOCALITIES AND HABITATS
BITING ACTIVITY OF BLACK FLIES IN GUATEMALA - PARITY RATES AND DIFFERENCES BETWEEN LOCALITIES AND HABITATS
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DOI：
10.4269/ajtmh.1988.38.142
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发表时间：
1988-01-01
影响因子：
3.3
通讯作者：
COLLINS, RC
中科院分区：
文献类型：
--
作者：
PORTER, CH;COLLINS, RC
在危地马拉4个不同流行率的地方，用人类引诱剂和一年多的半月捕获量评估了嗜热性黑蝇的寄主寻找活动。在盘尾丝虫病发病率最高的地方，寻求宿主的赭色蚋密度最大，在人类感染水平较低的2个地方，其密度大大降低。经产宿主寻找型S。赭曲霉在4个地点的分布范围为41%~ 49%。寻找宿主的活动似乎集中在附近的流包含不成熟的阶段，和一些女性分散远至3公里远。S.在盘尾丝虫病流行最高的地区，金属盘尾丝虫的寄主密度远低于金属盘尾丝虫。赭色对于鼠伤寒沙门氏4个地点的经产雌虫总百分率为28%~ 34%。S. metallicum一直采取更多的咖啡种植区比住房区。宿主寻找S. callidum和S.冈萨雷斯也被抓获。
Host-seeking activity of anthropophilic black flies at 4 localities in Guatemala with different prevalence rates of onchocerciasis was assessed using human attractants and semimonthly catches over one year. Density of host-seeking Simulium ochraceum was greatest at the locality with the highest incidence of onchocerciasis and very reduced at the 2 localities with low levels of human infection. The overall percentage of parous host-seeking S. ochraceum at the 4 localities ranged from 41%.sbd.49%. Host-seeking activity appeared to be concentrated near streams containing immature stages, and few females dispersed as far as 3 km away. S. metallicum was the second most frequently captured species; however, at the locality with the highest prevalence of onchocerciasis, its host-seeking density was much less than that of S. ochraceum. For S. metallicum, the overall percentage of parous females ranged from 28%.sbd.34% at the 4 localities. S. metallicum were consistently taken in much greater numbers of coffee cultivation areas than in housing areas. Host-seeking S. callidum and S. gonzalezi also were captured.