Feeding frequency and survival of Anopheles gambiae in a rice-growing area in Ghana
Feeding frequency and survival of Anopheles gambiae in a rice-growing area in Ghana
复制标题
DOI：
10.1111/j.1365-2915.2011.00987.x
复制
发表时间：
2012-09-01
影响因子：
1.9
通讯作者：
Pitts, R. J.
中科院分区：
文献类型：
--
作者：
Charlwood, J. D.;Tomas, E. V.;Pitts, R. J.
估计了主要为M型雌性冈比亚按蚊（双翅目：蚊科）的解剖死亡率。2010年6月和7月，加纳一个灌溉项目村庄的帐篷陷阱和灯光陷阱收集了蚊子，当时大部分地区被洪水淹没。从稻田中采集到M型和S型幼虫，其中M型74头。从两个诱捕器中收集的成虫比例相等（从灯诱捕器中收集的107个标本中有90个，从帐篷诱捕器中收集的116个标本中有106个是M型）。在研究期间，每晚的收集数量从105个增加到972个。共有1787的15431安。解剖收集的冈比亚。其中，953人（53%）被发现服用了他们的第一次血餐，无论是处女还是交配后。分别收集的活蚊子和死蚊子的年龄分布相似。在酶联免疫吸附试验（ELISA）中，2933份标本中有18份（0.61 +/- 0.49%）为子孢子阳性。不同年龄组之间的滞后交叉相关性表明，蚊子在产卵前羽化后的第2天和第4天进食，此后每隔2.65 +/- 0.17天进食一次。描述观察到的种群模式的最佳模型意味着每天死亡率为84%。结果进行了讨论，有关可能的蚊子控制措施的村庄。
Mortality rates, determined by dissection, of predominantly M form female Anopheles gambiae (Diptera: Culicidae) were estimated. Mosquitoes were collected in tent traps and light traps in an irrigation project village in Ghana in June and July 2010, when much of the area was flooded. Both M and S form larvae were collected from rice fields (74 of 80 specimens were M form). Adults were collected in equal proportions from the two traps (90 of 107 specimens from the light trap and 106 of 116 specimens from the tent trap were M form). During the study, collection numbers rose from 105 to 972 per night. A total of 1787 of the 15 431 An. gambiae collected were dissected. Of these, 953 (53%) were found to have taken their first bloodmeal, either as virgins or following mating. The age profiles of mosquitoes collected alive and dead, respectively, were similar. Eighteen of 2933 (0.61 +/- 0.49%) specimens were found to be positive for sporozoites in an enzyme-linked immunosorbent assay (ELISA). Lagged cross correlations among the different age groups implied that the mosquitoes fed on days 2 and 4 following emergence prior to oviposition and every 2.65 +/- 0.17 days thereafter. The best model to describe the observed population patterns implied a daily mortality of 84%. The results are discussed in relation to possible mosquito control measures for the village.