Comparison of behaviour between 2 subspecies of owl monkey (Aotus trivirgatus) in a laboratory environment

To evaluate potential factors affecting reproductive performance, 6 monkeys of Colombian and 6 of Bolivian origin, housed as mated pairs, were observed via closed circuit television and a remote-controlled camera. Behavioural differences in feeding and drinking, locomotor activity, environmental interaction, positive social interaction, autogrooming, nestbox occupancy, and playing were observed. The differences noted indicate that the subspecies may have different social structures.