CDB Seminar Series - Dr Alfonso Perez-Escudero - 14 March 2019

Start: Mar 14, 2019 01:00 PM
End: Mar 14, 2019 02:00 PM

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Title: "A simple rule governs Caenorhabditis elegans foraging behaviour"
Speaker: Dr Alfonso Perez-Escudero - University of Toulouse (profile)
Venue: JZ Young LT, Anatomy Building (map)
Host: Dr Arantza Barrios (email)

Abstract: We aim to predict the distribution of animals across a landscape from the characteristics of their instantaneous behaviours. While this distribution may in general be very complex, we have found that for the nematode Caenorhabditis elegans a simple rule describes this distribution in environments with food patches of different qualities. From the evolutionary point of view, we find that the rule matches with the predictions of game theory for crowded environments (the Ideal Free Distribution). From the mechanistic point of view, we find that the rule is virtually unaffected by chemotaxis. This last result was surprising, 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.