Home range, activity pattern, and agonistic encounters of a group of night monkeys (Aotus trivirgatus) in Peru.

Findings are presented from a 9-week field study on Aotus trivirgatus in continuous primary, tropical forest in Peru. One group of 2 adults and 2 juveniles utilized the same lodge area in the center of a home range of 3.1 ha for the duration of the study. The group utilized eleven fruit trees of nine different species during the 9 weeks. The home range overlapped extensively with that of other Aotus groups.