Evolutionary graph theory combines evolutionary games with population structure,
induced by the graph. The games used are limited to pairwise games occurring on the
edges of the graph. Multiplayer games can be important in biological modelling,
however, and so recently a new framework for modelling games in structured
populations allowing games with arbitrary numbers of players was introduced. In this
paper we develop the model to investigate the effect of population structure
on the level of aggression, as opposed to a well-mixed population for two
specific types of graph, using a multiplayer hawk-dove game. We find that the
graph structure can have a significant effect on the level of aggression, and
that a key factor is the variability of the group sizes formed to play the
games; the more variable the group size, the lower the level of aggression, in
general.
Keywords
structured populations, evolution, game theory, territory