Activity patterns in a stumptail macaque group (Macaca arctoides).

Activity profiles from a group of stumptail monkeys differed significantly from the profiles previously reported for pigtail monkeys, mangabeys and geladas scored under nearly identical conditions. Variables such as sex, weather and time of day, however, often had similar influences on the activity profiles of several or all of the groups. Data obtained on the stumptail monkeys in this study were more similar to data collected on other groups of stumptails, living under very different conditions, than to the data collected on different species living under nearly identical conditions. Infant care patterns in the stumptails included interactions with adult males and females and were not significantly influenced by kinship.