What traits promote male parallel dispersal in primates? Valérie A.M. Schoof 1,3) , Katharine M. Jack 1) & Lynne A. Isbell 2) ( 1 Department of Anthropology, Tulane University, 7041 Freret Street, New Orleans, LA 70118, USA; 2 Department of Anthropology, University of California, Davis, CA, USA) (Accepted: 5 December 2008) Summary Parallel dispersal occurs when individuals emigrate together with peers or close kin, or im- migrate into groups containing familiar or closely related individuals. To understand the evo- lution of parallel dispersal in male primates, we explore if parallel dispersal co-occurs with male coalitions, or with other traits that may facilitate coalition formation. We conducted a meta-analysis using phylogenetic comparative methods to test for an association between male parallel dispersal and male coalition formation, multi-male social groups, male-biased dispersal, high paternity concentration, and breeding seasonality. These traits were predicted to be correlated with parallel dispersal because they increase the availability of potential dis- persal partners, increase individual competitive ability, or provide inclusive fitness benefits for cooperating relatives. Pairwise comparisons revealed that coalitions in general were sig- nificantly associated with male parallel dispersal. However, neither intergroup nor intragroup coalitions were associated with parallel dispersal when examined separately, though
Behaviour – Brill
Published: Jan 1, 2009
Keywords: PRIMATES; COALITIONS; PHYLOGENETIC COMPARATIVE METHODS; PAIRWISE COMPARISONS; PARALLEL DISPERSAL
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