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
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
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.