Social organization in a wild population of Callithrix jacchus. I. Group composition and dynamics.


Data are presented on group dynamics in a wild population of the common marmoset, Callithrix jacchus, in northeastern Brazil. Three marked and habituated groups were observed, and composition noted, for at least 5 days a month over 12-18 consecutive months. Group sizes ranged from 5 to 15 individuals, and changes in group composition were the result of… (More)


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