Kenawy M A, Sowilem M M, Hamed M S, Merdan A I
Entomology Department, Faculty of Science and Research and Training Center on Vectors of Diseases, Ain Shams University, Abbassia, Cairo, Egypt.
J Egypt Public Health Assoc. 1996;71(3-4):185-200.
The ecology of Anopheles sergentii and An. multicolor was investigated over eight months to examine the entomological factors maintaining the low Plasmodium vivax transmission in Siwa oasis. The two species were encountered as larvae while the dominant species, Anopheles sergentii was also collected as adults. Breeding sites were characterized for the two species in six localities. Larvae of both species were common during June and November. In Bahi El Din as an indicator village with a higher endemicity, An. sergentii females were endophilic but more common inside animal sheds than in houses, attracted more to donkey-baited traps than to human hosts, more endophagic as human biters and were more common in May/June and November. Female survivorship was higher in November than in the other months. Vector potential of An. sergentii was predicted and revealed that the species characteristics (low human contact, short survival and zoophilic feeding behavior) are responsible for maintaining such low and unstable malaria in Siwa oasis.
为了研究维持锡瓦绿洲间日疟原虫低传播率的昆虫学因素，对塞尔gentii按蚊和多彩按蚊的生态进行了为期八个月的调查。这两个物种以幼虫形式被发现，而优势种塞尔gentii按蚊也采集到了成虫。对六个地点的这两个物种的繁殖地进行了特征描述。这两个物种的幼虫在6月和11月很常见。在作为高流行率指示村的巴希·埃尔丁，塞尔gentii按蚊雌蚊是嗜室内性的，但在动物棚内比在房屋内更常见，对驴饵诱捕器的吸引力比对人类宿主更大，作为人类叮咬者更嗜内食性，并且在5月/6月和11月更常见。11月雌蚊的存活率高于其他月份。对塞尔gentii按蚊的媒介潜力进行了预测，结果表明该物种的特征（与人类接触少、存活时间短和嗜动物性摄食行为）是锡瓦绿洲疟疾维持在低水平且不稳定的原因。
