Gunasekaran K, Jambulingam P, Sadanandane C, Sahu S S, Das P K
Vector Control Research Centre, Indira Nagar, Pondicherry, India.
Acta Trop. 1994 Oct;58(1):1-11. doi: 10.1016/0001-706x(94)90116-3.
The utility of light traps for sampling Anopheles fluviatilis, the major malaria vector in the hill tracts of Koraput district, Orissa, was assessed. A modified version of the CDC miniature light trap was used in the study. The data generated from light trap collections were analysed and compared with daytime resting, man-biting and night resting collections carried out in parallel. The number per trap recorded in cattle sheds was significantly higher than that recorded in human dwellings. A similar pattern was observed in hand catches of indoor resting population though the difference was not significant. The density recorded from light traps over time was found to have a significant positive linear association with corresponding indoor (r = 0.625; p = 0.0019) as well as outdoor (r = 0.603; p = 0.0029) diurnal resting densities. The proportion with different gonotrophic stages varied significantly between different types of collections. The age structure of A. fluviatilis did not differ significantly with the types of collection. As the light trap catches reflect seasonal fluctuations in the diurnal resting collections, they can justifiably be used in monitoring the relative density of A. fluviatilis in the place of cumbersome hand catch methods. Other uses of light traps are also discussed.
对用于采集奥里萨邦科拉普特区山区主要疟疾传播媒介——溪流按蚊的诱蚊灯的效用进行了评估。研究中使用了美国疾病控制与预防中心(CDC)微型诱蚊灯的改良版。对诱蚊灯收集的数据进行了分析,并与同时进行的日间栖息、叮人及夜间栖息收集的数据进行了比较。在牛棚中每个诱蚊灯记录的数量显著高于在人类住所记录的数量。在室内栖息种群的人工捕捉中也观察到了类似模式,尽管差异不显著。发现随时间推移诱蚊灯记录的密度与相应的室内(r = 0.625;p = 0.0019)以及室外(r = 0.603;p = 0.0029)日间栖息密度存在显著的正线性关联。不同类型收集之间处于不同生殖营养阶段的比例差异显著。溪流按蚊的年龄结构在不同收集类型之间没有显著差异。由于诱蚊灯捕获量反映了日间栖息收集的季节性波动,因此可以合理地用它们来监测溪流按蚊的相对密度,以取代繁琐的人工捕捉方法。还讨论了诱蚊灯的其他用途。