Aggression with mixed age-sex groups of Bolivian squirrel monkeys following single animal introductions and new group formations (1988)

Williams, L. E., Abee, C. R.

Abstract

When introducing new animals to an established group, the new animals should be unfamiliar with one another so as not to form competing 'teams'. Additions to groups should include enough animals so that aggression from the resident group will be diffused, not concentrated on one or two animals. New groups should be followed for a number of hours, even after an initial decline in total agonistic interactions. Trauma, associated with fighting, is the most common medical problem requiring treatment in large colonies of group housed squirrel monkeys (p. 144).