Increased cage size affects Aotus time budgets and partner distances (2000)

Williams, L. E., Steadman, A., Kyser, B.

Abstract

Aotes spp. housed in typical, small, laboratory cages appear to be sedentary animals that spend large amounts of time sitting alone or in physical contact with social partners. ... The Aotus, housed as pairs or family groups, were moved from cages measuring 0.63m x 1.5m x 0.76m to larger housing measuring 1.5m x 3m x 2m. Perches and nest boxes were provided in both housing conditions. ... Results indicate that Aotus will disperse and use the cage area provided. Changes in time budgeting are indicative of more relaxed animals, spending less time huddled with family members or in their nest box [alone], and spending more time eating and drinking.