Living conditions affect stress levels of captive chimpanzees (2001)

Aureli, F., Seres, M., Whitten, P. L. et al.

Abstract

Our results indicate that stress levels in captive chimpanzees are not affected by population density per se (chimpanzees use behavioural coping strategies), but when coupled with high Neighbor Effect stress levels increase. If many groups need to live in close proximity, it is better to house chimpanzees in large compounds.