1991/01/01 by Christophe Boesch · 30 citations
Psychology · Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Primate Behavior and Ecology #Animal Behavior and Reproduction #Animal Vocal Communication and Behavior
paper · doi:10.1163/156853991x00544
Composition and size of groups arc (bought to have evolved as adapta-tions that increase efficiency in exploiting and defending food resources and that reduce the risk of predations (BERTRAM, 1978; DUNBAR, 1988; TERBORGH, 1983; TERBORGH & JANSON, 1986). Disagreements persist