The effects of elementary environmental enrichment on the behavior of captive Java macaques (Macaca fascicularis) (1993)

Knowles, L.

Abstract

The aim of this study was to determine the short-term effects of simple, cost-effective enrichment techniques. .... In the presence of simple enrichment [ranging 'from food to foliage to plastic objects'], isolate housed macaques showed slight decreases in abnormal behaviors and idleness.