A simple rule for animal foraging behavior – theoretical and experimental evidence
- Publication : 25 janvier 2019
Alfonso PEREZ-ESCUDERO
Research center on Animal Cognition (CRCA) and the Center for Integrative Biology (CBI) in Toulouse, France
Le vendredi 15 février - 11h30 Campus Triolet Univ Montpellier: amphi 23.01 - Bât. 23
(Seminar in English)
We aim to predict the distribution of animals across a landscape taking their behavior into account. To do so, we combine theoretical work with high-throughput behavioral experiments in the nematode Caenorhabditis elegans. We have found that C. elegans' distribution across food patches follows the predictions of game theory for crowded environments. From the mechanistic point of view, we find that the rule is virtually unaffected by chemotaxis--a surprising result, given that chemotaxis is one of the main mechanisms used by worms to find food. However, theory shows that this will be the case in a wide range of conditions. Despite the complexity of animal behavior, its effect on the final distribution of animals may often be summarized by simple rules.
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