This study investigated the aggressive behavior of female Japanese macaques (Macaca fuscata (Blyth, 1875)) during lactation. Following parturition, the frequency of aggression showed an initial decline during weeks 1-2 of infant life, then increased to peak during weeks 7-8 post partum, and finally declined again to prepartum levels. Neither the initial decline nor the subsequent increase in aggression rate post partum was related to sociodemographic characteristics of the mother-infant dyad or to measures of maternal style. These results suggest that variation in postpartum aggression may be influenced less by the quality of the mother-infant relationship than by the mother's relationships the mother has with group mates.
ASJC Scopus subject areas
- Animal Science and Zoology