AGE-SEX DIFFERENCES IN THE SOCIAL BEHAVIOR OF ZOO-HOUSED COLOMBIAN BLACK SPIDER MONKEYS (Ateles fusciceps rufiventris)

Abstract:

Spider monkeys (Ateles spp.) live in multi-male multi-female groups with conspicuous sex differences in ranging patterns, association preferences and social strategies. Behavioral studies in populations under human care can provide a unique opportunity to build on our current understanding of their social behavior. Here, we studied sex differences in social behavior of one group of 18 black spider monkeys (Ateles fusciceps rufiventris) at the Wakatá Biopark, in Colombia. We conducted 20-min focal animal samples and recorded the focal animal’s activity and the rates and duration of their main social behaviors. Overall, we found no differences between sexes in the time spent in each activity, but adults rested more than juveniles who spent more time socializing. We found behavioral differences between the sexes with males showing a higher frequency of aggressive displays, chest rubbing, tail wrapping, and emitted long distance vocalizations more often than females. Grooming was mostly directed towards males, embraces were mostly between male-male dyads, and females were the most frequent recipients of aggression. Although relations amongst male spider monkeys have been suggested to be egalitarian, our results suggest that a single male in the study group received a larger proportion of grooming from females and was most often involved in unique social behaviors (e.g., chest rubbing). We suggest that these subtle behaviors, largely overlooked in the wild, might play a role in male-male relations and male reproductive strategies.

Año de publicación:

2022

Keywords:

• CAPTIVITY
• platyrrhines
• Ex Situ
• social interactions
• Aggression

Fuente:

scopus