Sharma S N, Prasad R N
Malaria Research Centre, Sadar Bazar, Shahjahanpur, India.
Indian J Malariol. 1991 Mar;28(1):19-28.
Studies on seasonal prevalence, resting behaviour, gonotropic conditions and breeding habits of Anopheles culicifacies were carried out from January 1987 to December 1989 in riverine villages of Dadraul PHC in Shahjahanpur district, Uttar Pradesh. Man hour densities of An. culicifacies varied from 11.3 to 125.1 during the study period. The species showed two peaks of high prevalence: one during March to June and the other during October to December. The first peak was higher than the second. The collection revealed a higher proportion of freshly fed to semi-gravid females thus indicating the outdoor resting behaviour of the species. From the immatures collected from riverbed pools, 7 anopheline species were identified. Of the 955 specimens identified, An. culicifacies constituted the highest number (62.1%). The study indicates that low rainfall and drought did not affect An. culicifacies densities or malaria transmission in riverine areas.
1987年1月至1989年12月，在北方邦沙贾汉布尔县达德劳初级卫生保健中心的河边村庄，对库氏按蚊的季节流行率、静息行为、促性腺状况和繁殖习性进行了研究。在研究期间，库氏按蚊的人时密度在11.3至125.1之间变化。该物种出现两个高流行高峰：一个在3月至6月，另一个在10月至12月。第一个高峰高于第二个高峰。采集结果显示，新进食的雌蚊比例高于半妊娠雌蚊，从而表明该物种的户外静息行为。从河床水潭采集的未成熟个体中，鉴定出7种按蚊。在鉴定的955个标本中，库氏按蚊数量最多（62.1%）。研究表明，低降雨量和干旱并未影响河边地区的库氏按蚊密度或疟疾传播。
