Comparative fecundity and associated factors for two sibling species of the Anopheles gambiae complex occurring sympatrically in The Gambia
Comparative fecundity and associated factors for two sibling species of the Anopheles gambiae complex occurring sympatrically in The Gambia
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DOI：
10.1111/j.1365-2915.1996.tb00761.x
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发表时间：
1996-10-01
影响因子：
1.9
通讯作者：
Hurd, H
中科院分区：
文献类型：
--
作者：
Hogg, JC;Thomson, MC;Hurd, H
在西非冈比亚，以冈比亚疟蚊复合体中的两种兄弟蚊为研究对象，研究了体型（翼长）和血粉大小（血素排泄）对野生雌蚊繁殖力的影响。新鲜血液喂养的个体来自安的同域种群。arabiensis和An。在1993年7月/ 8月雨季开始时，于7时至9时在蚊帐内收集冈比亚严格感蚊样本。通过从研究样本中剔除受感染的蚊子，消除了疟原虫感染可能造成的混淆效应。一个。arabiensis的雌性占An的75%。冈比亚蝇居群较晚，平均翅长明显大于安鸟。冈比亚蚊。尽管翅长与产蛋量之间的关系呈显著性差异，但两种雌鸟的平均产蛋量（在随后的淋养循环中，不包括妊娠前期）没有显著差异。冈比亚似乎比非洲更富饶。大小相同的阿拉伯种。Pregravid。冈比亚瓢虫的食血量明显小于妊娠雌瓢虫，但两种类型的平均翼长差异不显著。相反，安。Arabiensis pre-gravids体型更小，吃的血也比gravids少。
For two sibling species of mosquitoes belonging to the Anopheles gambiae complex of malaria vectors, the effects of body size (wing length) and bloodmeal size (haematin excretion) on fecundity of wild females were investigated in The Gambia, West Africa. Freshly blood-fed individuals from sympatric populations of An.arabiensis and An.gambiae sensu stricto were sampled by collection at 07.00-09.00 hours from within bednets during July/August 1993, at the beginning of the rainy season. The possible confounding effect of infection with Plasmodium parasites was removed by eliminating infected mosquitoes from the study samples. An.arabiensis females comprised 75% of the An.gambiae sensu late population and were significantly larger (greater mean wing length) than those of An.gambiae s.s. mosquitoes. Mean egg production per female (for the subsequent gonotrophic cycle, excluding pre-gravids) for the two species was not significantly different, though the relationship between wing length and egg production showed An.gambiae s.s. to be more fecund than the An.arabiensis of the same size. Pregravid An.gambiae s.s. had consumed significantly smaller bloodmeals than gravid females but the mean wing length of these two gonotrophic categories was not significantly different. In contrast, An.arabiensis pre-gravids were smaller and had consumed smaller bloodmeals than the gravids.