Integration of a female Francois langur (Presbytis francoisi francoisi) into an existing captive group (1999)

Bocian, D., Carter, A.

Abstract

This study documents the successful integration of an adult female Francois langur into an existing group of 2 adult females and their 3 offspring and 1 adult male. Introductions of the new female to the other three adults were conducted in staggered one-on-one sessions out of sight of the group. In this introduction, the adult male exhibited positive interactions with the new females, while the resident females were moderately aggressive but quickly allowed the new female to rest with the troop members and engage in social grooming.