The core-to-core program of JSPS
HOPE International seminar

"PRODUCER-SCROUNGER FORAGING GAMES AND THE RISKS OF USING INFORMATION GENERATED BY OTHERS"

Date: October 28th, 2005
Place: PRI, Kyoto University, Inuyama

Convener:

Prof. Luc-Alain Giraldeau
Departement des Sciences Biologiques
Universite du Quebec a Montreal

Animals that live in groups and forage together seem to develop exploitative relationships. Some individuals search for food, others wait for searchers to find this food. This leads to a game between two strategies, producer (searchers) and scroungers (waiters). Game theory models of this phenomena were successfully constructed and used to test this prediction using small south-east Asian birds in the lab. A series of potential problems with the idea that animals use information generated by others is also discussed. The same producer-scrounger game type was develop for information use and it was found that when animals use the information generated by others, the group as a whole ends up with much less information. There are also other problems with social information, some of which involve potential informational cascades.

Recent books by the author:

Bolhuis, J and L.-A. Giraldeau (eds). 2005. The Behavior of Animals : Mechanisms, Function and Evolution. Blackwell, New York.

Giraldeau L-A. 2004 Evolution and the central nervous system. Brain Behavior and Evolution,Vol 63 No 4.

Giraldeau, L-A. and T. Caraco. 2000. Social Foraging Theory. Princeton University Press.


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