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Impacts of biotic and abiotic parameters on immature populations of Aedes aegypti
Journal of Pest Science ( IF 4.8 ) Pub Date : 2020-03-06 , DOI: 10.1007/s10340-020-01214-w
Stanislas Talaga , Alain Dejean , Frédéric Azémar , Yves Dumont , Céline Leroy

In recent centuries, the mosquito Aedes aegypti has spread into most urban areas throughout the tropics. This species is considered the main vector of the chikungunya, dengue, yellow fever and Zika viruses and causes major public health issues. The aim of this study is to investigate the relative influence of biotic and abiotic parameters on immature populations of Ae. aegypti. During a one-year-long field experiment, we monitored 108 macroinvertebrate aquatic communities inhabiting four types of water containers across three different urbanized sites in a Neotropical city. A multimodel inference approach revealed that, in addition to abiotic parameters, biotic interactions with aquatic organisms had an important influence on the abundance of Ae. aegypti and that the urbanized site considered influences the outcomes of the interactions. Controphic species other than mosquitoes aided Ae. aegypti development, suggesting a mechanism of facilitation through a chain of processes. However, the abundance of Ae. aegypti was lowered by competition with native mosquito species in the slightly urbanized area and by predation in more urbanized areas. Competitive displacement and reduction, as well as predation by native aquatic organisms, can be considered a form of ecosystem service. The conservation and/or augmentation of natural enemies should improve the short- and long-term success of incompatible and/or sterile insect techniques, thus opening up perspectives for the future of mosquito management.

中文翻译:

生物和非生物参数对埃及伊蚊未成熟种群的影响

在最近的几个世纪中,埃及伊蚊已经扩散到整个热带地区的大多数城市地区。该物种被认为是基孔肯雅热,登革热,黄热病和寨卡病毒的主要媒介,并引起重大的公共卫生问题。这项研究的目的是调查生物和非生物参数对Ae的未成熟种群的相对影响伊蚊。在为期一年的野外实验中,我们监测了108个大型无脊椎动物水生社区,这些水生社区在新热带城市的三个不同的城市化站点中居住着四种类型的水容器。一种多模型推论方法表明,除了非生物参数外,与水生生物的生物相互作用对Ae的丰度也有重要影响。埃及并且考虑到的城市化地点会影响互动的结果。除蚊子以外的其他有营养的物种也有助于Ae。埃及人的发展,暗示了通过一系列过程的促进机制。但是,丰富的Ae。由于城市化程度较低的地区与本地蚊子的竞争以及城市化程度较高的地区的捕食活动,埃及埃及的种群数量有所下降。竞争性的替代和减少以及本地水生生物的捕食可被视为生态系统服务的一种形式。自然天敌的保护和/或繁殖应提高不相容和/或无菌昆虫技术的短期和长期成功性,从而为蚊子管理的未来开辟前景。
更新日期:2020-03-06
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