Context-specific variation in life history traits and behavior of Aedes aegypti mosquitoes.

IF 2.4 Q1 ENTOMOLOGY
Frontiers in insect science Pub Date : 2024-09-25 eCollection Date: 2024-01-01 DOI:10.3389/finsc.2024.1426715
Clément Vinauger, Karthikeyan Chandrasegaran
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Abstract

Aedes aegypti, the vector for dengue, chikungunya, yellow fever, and Zika, poses a growing global epidemiological risk. Despite extensive research on Ae. aegypti's life history traits and behavior, critical knowledge gaps persist, particularly in integrating these findings across varied experimental contexts. The plasticity of Ae. aegypti's traits throughout its life cycle allows dynamic responses to environmental changes, yet understanding these variations within heterogeneous study designs remains challenging. A critical aspect often overlooked is the impact of using lab-adapted lines of Ae. aegypti, which may have evolved under laboratory conditions, potentially altering their life history traits and behavioral responses compared to wild populations. Therefore, incorporating field-derived populations in experimental designs is essential to capture the natural variability and adaptability of Ae. aegypti. The relationship between larval growing conditions and adult traits and behavior is significantly influenced by the specific context in which mosquitoes are studied. Laboratory conditions may not replicate the ecological complexities faced by wild populations, leading to discrepancies in observed traits and behavior. These discrepancies highlight the need for ecologically relevant experimental conditions, allowing mosquito traits and behavior to reflect field distributions. One effective approach is semi-field studies involving field-collected mosquitoes housed for fewer generations in the lab under ecologically relevant conditions. This growing trend provides researchers with the desired control over experimental conditions while maintaining the genetic diversity of field populations. By focusing on variations in life history traits and behavioral plasticity within these varied contexts, this review highlights the intricate relationship between larval growing conditions and adult traits and behavior. It underscores the significance of transstadial effects and the necessity of adopting study designs and reporting practices that acknowledge plasticity in adult traits and behavior, considering variations due to larval rearing conditions. Embracing such approaches paves the way for a comprehensive understanding of contextual variations in mosquito life history traits and behavior. This integrated perspective enables the synthesis of research findings across laboratory, semi-field, and field-based investigations, which is crucial for devising targeted intervention strategies tailored to specific ecological contexts to combat the health threat posed by this formidable disease vector effectively.

埃及伊蚊生活史特征和行为的特定环境变异。
埃及伊蚊是登革热、基孔肯雅热、黄热病和寨卡病毒的传播媒介,对全球流行病造成的风险越来越大。尽管对埃及伊蚊的生活史特征和行为进行了广泛的研究,但仍然存在关键的知识差距,特别是在不同实验环境中整合这些发现方面。埃及伊蚊在整个生命周期中的性状具有可塑性,能对环境变化做出动态响应,但在不同的研究设计中理解这些变化仍具有挑战性。埃及伊蚊可能是在实验室条件下进化而来的,与野生种群相比,可能会改变其生活史特征和行为反应。因此,在实验设计中纳入野外种群对于捕捉埃及蝇的自然变异性和适应性至关重要。幼虫生长条件与成虫性状和行为之间的关系受研究蚊子的具体环境影响很大。实验室条件可能无法复制野生种群所面临的复杂生态环境,从而导致观察到的性状和行为存在差异。这些差异凸显了生态相关实验条件的必要性,使蚊子的性状和行为能够反映野外分布情况。一种有效的方法是进行半野外研究,在生态相关的条件下,将野外采集的蚊子在实验室中饲养较少世代。这种日益增长的趋势为研究人员提供了所需的实验条件控制,同时保持了野外种群的遗传多样性。本综述通过关注这些不同环境下生活史特征和行为可塑性的变化,强调了幼虫生长条件与成虫特征和行为之间错综复杂的关系。它强调了跨幼体效应的重要性,以及采用承认成体性状和行为可塑性的研究设计和报告方法的必要性,同时考虑了幼体饲养条件造成的变化。采用这种方法为全面了解蚊子生活史特征和行为的环境变化铺平了道路。这种综合视角能够综合实验室、半实地和实地调查的研究结果,这对于针对特定生态环境制定有针对性的干预策略,有效对抗这种可怕病媒对健康造成的威胁至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
1.80
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