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The role of optic flow pooling in insect flight control in cluttered environments
Stockholm University, Faculty of Science, Department of Zoology. Lund University, Sweden.
Number of Authors: 42019 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, article id 7707Article in journal (Refereed) Published
Abstract [en]

Flight through cluttered environments, such as forests, poses great challenges for animals and machines alike because even small changes in flight path may lead to collisions with nearby obstacles. When flying along narrow corridors, insects use the magnitude of visual motion experienced in each eye to control their position, height, and speed but it is unclear how this strategy would work when the environment contains nearby obstacles against a distant background. To minimise the risk of collisions, we would expect animals to rely on the visual motion generated by only the nearby obstacles but is this the case? To answer this, we combine behavioural experiments with numerical simulations and provide the first evidence that bumblebees extract the maximum rate of image motion in the frontal visual field to steer away from obstacles. Our findings also suggest that bumblebees use different optic flow calculations to control lateral position, speed, and height.

Place, publisher, year, edition, pages
2019. Vol. 9, article id 7707
National Category
Zoology Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:su:diva-170025DOI: 10.1038/s41598-019-44187-2ISI: 000468600800001PubMedID: 31118454OAI: oai:DiVA.org:su-170025DiVA, id: diva2:1329299
Available from: 2019-06-24 Created: 2019-06-24 Last updated: 2019-06-24Bibliographically approved

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