Charlwood J D, Graves P M
Papua New Guinea Institute of Medical Research, Madang.
Med Vet Entomol. 1987 Jul;1(3):319-27. doi: 10.1111/j.1365-2915.1987.tb00361.x.
The effect of introducing bednets impregnated with 0.4 g/m2 permethrin on local populations of the malaria vector mosquitoes Anopheles farauti Laveran and An. koliensis Owen was monitored in a coastal village of Papua New Guinea. Whole-night landing collections were undertaken for 25 consecutive nights before and 21 nights after the introduction of the nets. Capture-recapture experiments and resting collections were also performed before and after the introduction of the nets. Following the introduction of treated nets, the biting population of An. farauti, the predominant vector, dropped from an average of 689 to 483 per man-night and the oviposition cycle became irregular, although survival rates (determined by time series analysis of the landing catches and log regression of recapture rates) were not significantly affected. The densities of An. farauti resting in and around houses and the human blood index of the engorged females also decreased significantly after introduction of the treated bednets. The population of An. koliensis dropped prior to the introduction of the nets. However, the number of nulliparous females in the landing catches remained more or less constant which implies that, in this species, survival rates were affected by the nets but that recruitment to the population was not.
在巴布亚新几内亚的一个沿海村庄，监测了引入浸渍有0.4 g/m²氯菊酯的蚊帐对当地疟疾传播媒介蚊子——费氏按蚊（Laveran）和科氏按蚊（Owen）种群的影响。在引入蚊帐之前连续25个夜晚以及引入之后21个夜晚进行全夜着陆采集。在引入蚊帐前后还进行了标记重捕实验和栖息采集。引入经处理的蚊帐后，主要传播媒介费氏按蚊的叮咬种群从平均每人每晚689只降至483只，产卵周期变得不规则，尽管生存率（通过着陆捕获的时间序列分析和重捕率的对数回归确定）未受到显著影响。引入经处理的蚊帐后，在房屋内和周围栖息的费氏按蚊密度以及饱血雌蚊的人血指数也显著下降。科氏按蚊的种群数量在引入蚊帐之前就有所下降。然而，着陆采集中未产卵雌蚊的数量大致保持不变，这意味着，对于这个物种，生存率受到蚊帐的影响，但种群补充未受影响。
