Chareonviriyaphap Theeraphap, Prabaripai Atchariya, Bangs Michael J, Aum-Aung Boonserm
Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
J Med Entomol. 2003 Nov;40(6):876-81. doi: 10.1603/0022-2585-40.6.876.
Anopheline mosquito larvae and adults were sampled at Ban Pu Teuy, Tri-Yok District, Kanchanaburi Province, western Thailand, from January 2000 to December 2001. Over the period of 2 yr, Anopheles minimus sensu lato was the most commonly collected species, followed by Anopheles swadiwongporni and Anopheles dirus sensu lato; all three species are important vectors of malaria in Thailand. Attempted blood feeding by An. minimus occurred throughout the night, with two distinct feeding peaks: strong activity immediately after sunset (1800-2100 hours), followed by a second, less pronounced, rise before sunrise (0300-0600 hours). Anopheles minimus were more abundant during the wet season compared with the dry and hot seasons, although nocturnal adult feeding patterns were similar. Anopheles minimus fed readily on humans inside and outside of houses, showing a slight preference for exophagy. The human-biting peak of An. minimus in our study area differed from other localities sampled in Thailand, indicating the possible existence of site-specific populations of An. minimus exhibiting different host-seeking behavior. These results underscore the importance of conducting site-specific studies to accurately determine vector larval habitats and adult activity patterns and linking their importance in malaria transmission in a given area.
2000年1月至2001年12月期间，在泰国西部北碧府翠约县的班普推采集了按蚊幼虫和成虫样本。在这两年期间，微小按蚊复合组是最常采集到的物种，其次是斯氏按蚊和大劣按蚊复合组；这三个物种都是泰国重要的疟疾传播媒介。微小按蚊在整个夜间都有吸血尝试，有两个明显的吸血高峰：日落后（18:00-21:00）立即出现强烈活动，随后在日出前（03:00-06:00）出现第二个不太明显的活动高峰。与旱季和炎热季节相比，微小按蚊在雨季更为常见，尽管夜间成虫的吸血模式相似。微小按蚊很容易在房屋内外叮咬人类，表现出对户外吸血略有偏好。我们研究区域内微小按蚊的叮人高峰与泰国其他采样地点不同，这表明可能存在表现出不同宿主寻找行为的微小按蚊特定地点种群。这些结果强调了开展特定地点研究以准确确定媒介幼虫栖息地和成虫活动模式，并将它们在特定区域疟疾传播中的重要性联系起来的重要性。
