Primates

, Volume 23, Issue 3, pp 393–405

Male chimpanzee development focusing on adolescence: Integration of behavioral with physiological changes

  • Helena Chmura Kraemer
  • Janice R. Horvat
  • Charles Doering
  • Patrick R. McGinnis
Article

DOI: 10.1007/BF02381322

Cite this article as:
Kraemer, H.C., Horvat, J.R., Doering, C. et al. Primates (1982) 23: 393. doi:10.1007/BF02381322

Abstract

Intensive longitudinal behavior observations of male chimpanzees in stable mixed-sex social groups in a semi-natural environment were analyzed by state of development as defined by dental, growth and hormonal signals. Initial increase of sexual behaviors preceded adolescent hormonal changes. Peak prevalence of sexual behaviors coincided with the adolescent period. This period is also characterized by peak activity level and feeding. The major increase in aggression and stabilization of submissive behavior at adult level occurred concomitant with achievement of adult hormone levels and body size, and these were accompanied by increase of grooming affiliative behaviors.

Copyright information

© Japan Monkey Centre 1982

Authors and Affiliations

  • Helena Chmura Kraemer
    • 1
  • Janice R. Horvat
    • 1
  • Charles Doering
    • 2
  • Patrick R. McGinnis
    • 3
  1. 1.Department of Psychiatry and Behavioral SciencesStanford UniversityStanfordU.S.A.
  2. 2.Long Island Research Institute, Department of Psychiatry and Behavioral ScienceState University of New York at Stony BrookNew YorkU.S.A.
  3. 3.Tufts Medical SchoolMedfordU.S.A.