Diurnal variations in mother-infant separation and sleep in two species of macaque.

Abstract
The degree of cohesiveness within mother-infant dyads of Macaca nemestrina (pigtails) and Macaca radiata (bonnets) measured in terms of the physical separation separation between them, was studied in laboratory groups throughout 24-hr. periods. In both species cohesiveness was greatest at 5 A.M. when sleeping was at its peak. The pigtail dyads were significantly less cohesive prior to feeding. They also showed a greater tendency to assume a recumbent posture during sleep. These differences in dyadic patterning appear consistent with observed differences in the general behavior of these species.

This publication has 0 references indexed in Scilit: