Behavioral effects of perches on group-housed adult female Japanese monkeys (1998)

Nakamichi, M., Asanuma, K.

Abstract

When [4 adult female] monkeys were housed in a cage which contained eight wooden perches to increase usable space, the rate of agonistic interactions as well as the rates of spatial proximity and social grooming decreased in comparison with those evident when they were housed in a cage [identical dimension and resting bench] without such perches.