Short report: dispersal of Aedes aegypti in an urban area after blood feeding as demonstrated by rubidium-marked eggs.
Short report: dispersal of Aedes aegypti in an urban area after blood feeding as demonstrated by rubidium-marked eggs.
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简短报告：带铷标记的卵证明了吸血后埃及伊蚊在城市地区的传播。
DOI：
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发表时间：
1995
影响因子：
3.3
通讯作者：
G. Clark
中科院分区：
文献类型：
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作者：
P. Reiter;M. Amador;Robert A. Anderson;G. Clark
在登革热或黄热病城市疫情期间控制埃及伊蚊的策略假定该物种的最大飞行距离为50 - 100米。由于埃及伊蚊将卵产在多个产卵地点，我们推测其扩散是由寻找产卵地点驱动的，因此一只产卵的雌蚊可能必须飞行远超过50 - 100米才能产下所有的卵。我们开发了一种用一种稀有碱金属（铷）标记埃及伊蚊卵的方法，并表明在城市地区，单个生殖营养周期内的产卵活动持续数天，覆盖的区域直径至少为840米（55.4公顷）。我们认为，目前在假定或确诊病例周围50 - 100米范围内使用杀虫剂进行重点处理以控制登革热和黄热病传播的做法不太可能有效。此外，减少源头（消除滋生地）可能会因减少可用产卵地点的数量而促进感染病毒的蚊子的传播。
Strategies for the control of Aedes aegypti during urban outbreaks of dengue or yellow fever assume that this species has a maximum flight range of 50-100 meters. Because Ae. aegypti distributes its eggs among several oviposition sites, we postulated that dispersal is driven by the search for oviposition sites, so an ovipositing female may have to fly much further than 50-100 meters to lay all of her eggs. We developed a method for marking Ae. aegypti eggs with a rare alkali metal (rubidium) and showed that in an urban area, oviposition activity in a single gonotrophic cycle lasts several days and covers an area at least 840 meters in diameter (55.4 hectares). We suggest that current practice for the control of dengue and yellow fever transmission by focal treatments with insecticides 50-100 meters around presumed or confirmed cases is unlikely to be effective. Moreover, source reduction (the elimination of breeding sites) may enhance dissemination of virus-infected mosquitoes by reducing the number of available oviposition sites.