Physical processes and real-time chemical measurement of the insect olfactory environment
Physical processes and real-time chemical measurement of the insect olfactory environment
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DOI：
10.1007/s10886-008-9490-7
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发表时间：
2008-07-01
影响因子：
2.3
通讯作者：
Hildebrand, John G.
中科院分区：
文献类型：
--
作者：
Riffell, Jeffrey A.;Abrell, Leif;Hildebrand, John G.
气味介导的昆虫在空气中的化学羽流导航是至关重要的许多生态相互作用，包括交配发现，花花蜜，和主机定位（疾病传播或草食动物可能开始）。挥发性化学物质释放后，通过物理过程迅速混合和稀释，从而形成动态的嗅觉环境。本文综述了这些物理过程和一些可用的分析技术来表征这些行为诱导的化学信号在时间尺度相当于昆虫的嗅觉处理。特别是，我们专注于两个领域的研究，一起可能会进一步我们的嗅觉信号动力学及其处理和昆虫的感知的理解。首先，在现场的物理大气过程的测量可以提供洞察昆虫的气味信号的时空动态。现场测量又允许在实验室中模拟物理环境的各个方面，从而允许仔细调查气味信号动态和昆虫行为之间的联系。其次，具有高记录频率和现场友好入口系统的新兴分析技术可能提供新的机会来表征与昆虫感知和行为相关的时空尺度上的自然气味。化学信号环境的表征允许确定何时何地嗅觉介导的行为可以控制生态相互作用。最后，我们认为，耦合这两个研究领域将促进物理化学环境的理解，使研究人员能够确定嗅觉环境如何塑造昆虫的行为和感觉系统。
Odor-mediated insect navigation in airborne chemical plumes is vital to many ecological interactions, including mate finding, flower nectaring, and host locating (where disease transmission or herbivory may begin). After emission, volatile chemicals become rapidly mixed and diluted through physical processes that create a dynamic olfactory environment. This review examines those physical processes and some of the analytical technologies available to characterize those behavior-inducing chemical signals at temporal scales equivalent to the olfactory processing in insects. In particular, we focus on two areas of research that together may further our understanding of olfactory signal dynamics and its processing and perception by insects. First, measurement of physical atmospheric processes in the field can provide insight into the spatiotemporal dynamics of the odor signal available to insects. Field measurements in turn permit aspects of the physical environment to be simulated in the laboratory, thereby allowing careful investigation into the links between odor signal dynamics and insect behavior. Second, emerging analytical technologies with high recording frequencies and field-friendly inlet systems may offer new opportunities to characterize natural odors at spatiotemporal scales relevant to insect perception and behavior. Characterization of the chemical signal environment allows the determination of when and where olfactory-mediated behaviors may control ecological interactions. Finally, we argue that coupling of these two research areas will foster increased understanding of the physicochemical environment and enable researchers to determine how olfactory environments shape insect behaviors and sensory systems.