The regulation of preimaginal populations of Aedes aegypti (L.) (Diptera: Culicidae) on the Kenya coast. II. Food as a main regulatory factor.

The regulation of preimaginal populations of Aedes aegypti (L.) (Diptera: Culicidae) on the Kenya coast. II. Food as a main regulatory factor.
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肯尼亚海岸埃及伊蚊(L.)(双翅目:蚊科)前成虫种群的调节。

DOI:
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发表时间:
1984
影响因子:
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通讯作者:
J. Mouchet
J. Mouchet
中科院分区:
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文献类型:
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作者:
R. Subra;J. Mouchet

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在肯尼亚海岸的一个村庄进行了实验,以调查观察到的埃及伊蚊室内盆栽繁殖幼虫生产力的差异。在蚊虫产量高和低的盆栽中,每天添加村民的主食玉米粥,促进了幼虫数量的增加,尽管每天引入一龄幼虫对幼虫的产量没有显著影响。蛹生产力的差异与盆中产卵量的差异无关。捕食和过度拥挤似乎并不是调节想象前阶段的重要因素。结果表明,食物,特别是村民意外引入的玉米粥,是调节种群数量的关键因素。由于卵子的数量总是相当可观,因此对Ae.埃及伊蚊只有在将蛋孵化率降低到非常低的水平时才能成功。Ae.防治前景展望讨论了通过健康教育和/或环境管理来防治埃及伊蚊。
Experiments were carried out in a village on the Kenya coast to investigate observed differences in pupal productivity of Aedes aegypti breeding in indoor pots. Daily addition of maize gruel, the staple food of villagers, to pots of high and low mosquito production promoted an increase of pupal numbers, although daily introduction of first-instar larvae did not significantly affect pupal production. Differences in pupal productivity were not related to differences in the numbers of eggs laid in the pots. Predation and overcrowding did not seem important in regulating the preimaginal stages. It was concluded that food, especially maize gruel accidentally introduced into the pots by villagers, was the key factor which regulated population size. As numbers of eggs are always considerable, genetic control of Ae. aegypti can be successful only when it reduces egg hatchability to a very low level. The prospects of controlling Ae. aegypti by means of health education and/or environmental management are discussed.