A balance between aerodynamic and olfactory performance during flight in Drosophila

Chengyu Li, Haibo Dong and Kai Zhao ()
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Chengyu Li: The Ohio State University
Haibo Dong: University of Virginia
Kai Zhao: The Ohio State University

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract The ability to track odor plumes to their source (food, mate, etc.) is key to the survival of many insects. During this odor-guided navigation, flapping wings could actively draw odorants to the antennae to enhance olfactory sensitivity, but it is unclear if improving olfactory function comes at a cost to aerodynamic performance. Here, we computationally quantify the odor plume features around a fruit fly in forward flight and confirm that the antenna is well positioned to receive a significant increase of odor mass flux (peak 1.8 times), induced by wing flapping, vertically from below the body but not horizontally. This anisotropic odor spatial sampling may have important implications for behavior and the algorithm during plume tracking. Further analysis also suggests that, because both aerodynamic and olfactory functions are indispensable during odor-guided navigation, the wing shape and size may be a balance between the two functions.

Date: 2018
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DOI: 10.1038/s41467-018-05708-1

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