Wosniack_et_al_PDF for Publish on Accept.pdf (9.97 MB)
Adaptation of Drosophila larva foraging in response to changes in food resources
journal contribution
posted on 2023-06-10, 05:37 authored by Marina E Wosniack, Dylan Festa, Nan Hu, Julijana Gjorgjieva, Jimena BerniJimena BerniAll animals face the challenge of finding nutritious resources in a changing environment. To maximize life-time fitness, the exploratory behavior has to be flexible, but which behavioral elements adapt and what triggers those changes remain elusive. Using experiments and modeling, we characterized extensively how Drosophila larvae foraging adapts to different food quality and distribution and how the foraging genetic background influences this adaptation. Our work shows that different food properties modulated specific motor programs. Food quality controls the travelled distance by modulating crawling speed and frequency of pauses and turns. Food distribution, and in particular the food-no food interphase, controls turning behavior, stimulating turns towards the food when reaching the patch border and increasing the proportion of time spent within patches of food. Finally, the polymorphism in the foraging gene (rover-sitter) of the larvae adjusts the magnitude of the behavioral response to different food conditions. This study defines several levels of control of foraging and provides the basis for the systematic identification of the neuronal circuits and mechanisms controlling each behavioral response.
History
Publication status
- Published
File Version
- Accepted version
Journal
eLifeISSN
2050-084XPublisher
eLife Sciences Publications, LtdExternal DOI
Volume
11Department affiliated with
- Clinical and Experimental Medicine Publications
Full text available
- Yes
Peer reviewed?
- Yes