Do I Know You? How Individual Recognition Affects Group Formation and Structure

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Rios, Vitor Passos
Kraenkel, Roberto Andre [UNESP]

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Public Library Science


Groups in nature can be formed by interactions between individuals, or by external pressures like predation. It is reasonable to assume that groups formed by internal and external conditions have different dynamics and structures. We propose a computational model to investigate the effects of individual recognition on the formation and structure of animal groups. Our model is composed of agents that can recognize each other and remember previous interactions, without any external pressures, in order to isolate the effects of individual recognition. We show that individual recognition affects the number and size of groups, and the modularity of the social networks. This model can be used as a null model to investigate the effects of external factors on group formation and persistence.



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Plos One. San Francisco: Public Library Science, v. 12, n. 1, 13 p., 2017.