Primates

, Volume 34, Issue 4, pp 525–532

Male dominance and genetically determined reproductive success in the mandrill (Mandrillus sphinx)

  • A. F. Dixson
  • T. Bossi
  • E. J. Wickings
Research Report Part 3: Paternity, Male Social Rank, And Sexual Behaviour

Abstract

Darwin referred to the adult male mandrill (Mandrillus sphinx) as the most brightly coloured of all mammals, citing the brilliant red and blue pigmentation of the face, rump, and genitalia as extreme examples of evolution by sexual selection. Considerable controversy exists concerning possible effects of sexually selected phenotypes via intermale competition on reproductive success. Behavioural and genetic studies of a large, semi-free ranging mandrill colony in Gabon have now demonstrated that clear-cut relationships exist between male secondary sexual development, social dominance, copulatory behaviour, and reproductive success in this primate species. Two morphological variants of adult male were identified; “fatted” males, with maximum secondary sexual coloration, which occupied dominant positions in the social group, and “non-fatted” males, with muted secondary sexual adornments, smaller testes and lower plasma testosterone levels, which lived as peripheral/solitary individuals. DNA fingerprinting analyses on infants born over five successive years showed that only the two most dominant, fatted males in the group had fathered offspring. Throughout the annual mating season these males attempted to mate-guard and copulate with females during periods of maximal sexual skin tumescence. Male rank and mating success were strongly positively related and the alpha male sired 80 – 100% of the resulting offspring during three consecutive years. Non-fatted adult males and group associated subadult males engaged in infrequent, opportunistic matings and did not guard females. Loss of alpha status resulted in a fall in reproductive success, but the effect was gradual; the deposed alpha male continued to father 67% and 25% of infants born during the next two years. Thus, whilst claims that male dominance determines mating success and paternity in primates have caused considerable debate, these results on mandrills provide unequivocal evidence for the existence of such effects.

Key Words

Male dominance Sexual behaviour DNA fingerprinting Reproductive success Mandrill 

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References

  1. Altmann, S. A., 1962. A field study of the sociobiology of rhesus monkeys (Macaca mulatta).Ann. N.Y. Acad. Sci., 102: 338–435.PubMedGoogle Scholar
  2. Bercovitch, F. B., 1986. Male rank and reproductive activity in savanna baboons.Int. J. Primatol., 7: 533–550.Google Scholar
  3. Bernstein, I. S., 1976. Dominance, aggression and reproduction in primate societies.J. Theor. Biol., 60: 459–472.CrossRefPubMedGoogle Scholar
  4. Burke, T., G. Dolf, A. J. Jeffreys, &R. Wolff (eds.), 1991.DNA Fingerprinting: Approaches and Applications. Birkhäuser Verlag, Basel.Google Scholar
  5. Chism, J. &T. E. Rowell, 1986. Mating and residence patterns in male patas monkeys.Ethology, 72: 31–39.Google Scholar
  6. Clutton-Brock, T. H. &S. D. Albon, 1979. The roaring of red deer and the evolution of honest advertisement.Behaviour, 69: 145–170.Google Scholar
  7. Colishaw, G. &R. I. M. Dunbar, 1991. Dominance rank and mating success in male primates.Anim. Behav., 41: 1045–1056.Google Scholar
  8. Crook, J. H., 1966. Gelada baboon herd structure and movement: a comparative report.Symp. Zool. Soc. Lond., 18: 237–258.Google Scholar
  9. Darwin, C., 1871.The Descent of Man and Selection in Relation to Sex. John Murray, London.Google Scholar
  10. de Ruiter, J. R., W. Scheffrahn, G. J. J. M. Trommelen, A. G. Uitterlinden, R. D. Martin, &J. A. R. A. M. van Hooff, 1992. Male social rank and reproductive success in wild long-tailed macaques. In:Paternity in Primates: Genetic Tests and Theories,R. D. Martin,A. F. Dixson, &E. J. Wickings (eds.), Karger, Basel, pp. 175–190.Google Scholar
  11. Dunbar, R. I. M., 1979. Structure of gelada baboon reproductive units: I. stability and social relationships.Behaviour, 69: 72–87.Google Scholar
  12. Feistner, A. T. C., 1989. The behaviour of a social group of mandrills. Ph.D. thesis, Univ. of Stirling.Google Scholar
  13. Goldizen, A. W., 1987. Facultative polyandry and the role of infant carrying in wild saddleback tamarins (Saguinus fuscicollis).Behav. Ecol. Sociobiol., 20: 99–109.CrossRefGoogle Scholar
  14. Harrison, M. J. S., 1988. The mandrill in Gabon's rainforest: ecology, distribution and status.Oryx, 22: 218–228.Google Scholar
  15. Hoshino, J., A. Mori, H. Kudo, &M. Kawai, 1984. Preliminary report on the grouping of mandrills (Mandrillus sphinx) in Cameroon.Primates, 25: 295–307.Google Scholar
  16. Jeffreys, A. J., V. Wilson, &S. L. Thein, 1985. Hypervariable “minisatellite” regions in human DNA.Nature, 314: 67–73.CrossRefPubMedGoogle Scholar
  17. Jouventin, P., 1975. Observations sur la socio-écologie du mandrill.Terre et Vie, 29: 493–532.Google Scholar
  18. Keverne, E. B., 1979. Sexual and aggressive behaviour in social groups of talapoin monkeys. In:Sex Hormones and Behaviour Ciba Found Symp., Excerpta Medica, Amsterdam, 62: 271–286.Google Scholar
  19. Kudo, H., 1987. The study of vocal communication in wild mandrills in Cameroon in relation to their social structure.Primates, 28: 289–308.CrossRefGoogle Scholar
  20. Kummer, H., 1968.The Social Organization of Hamadryas Baboons. Karger, Basel.Google Scholar
  21. le Boeuf, B. J., 1974. Male-male competition and reproductive success in elephant seals.Amer. Zoologist, 14: 163–176.Google Scholar
  22. Martin, R. D., A. F. Dixson, &E. J. Wickings (eds.), 1992.Paternity in Primates: Genetic Tests and Theories. Karger, Basel.Google Scholar
  23. McMillan, C. A., 1989. Male age, dominance and mating success among rhesus macaques.Amer. J. Phys. Anthropol., 80: 83–89.CrossRefGoogle Scholar
  24. Ménard, N., W. Scheffrahn, D. Vallet, C. Zidane, &C. Reber, 1992. Application of blood protein electrophoresis and DNA fingerprinting to the analysis of paternity and social characteristics of wild Barbary macaques. In:Paternity in Primates: Genetic Tests and Theories,R. D. Martin,A. F. Dixson, &E. J. Wickings (eds.), Karger, Basel, pp. 155–174.Google Scholar
  25. Smuts, B. B., 1985.Sex and Friendship in Baboons. Aldine, New York.Google Scholar
  26. Sussman, R. W. &P. A. Garber, 1987. A new interpretation of the social organization and mating system of the Callitrichidae.Int. J. Primatol., 8: 73–92.Google Scholar
  27. Wickings, E. J. &A. F. Dixson, 1992. Development from birth to sexual maturity in a semi-free-ranging colony of mandrills (Mandrillus sphinx) in Gabon.J. Reprod. Fertil., 95: 129–138.PubMedGoogle Scholar
  28. Wildt, D. E., U. Doyle, S. C. Stone, &R. M. Harrison, 1977. Correlation of perineal swelling with serum ovarian hormone levels, vaginal cytology and ovarian follicular development during the baboon reproductive cycle.Primates, 18: 261–270.Google Scholar

Copyright information

© Japan Monkey Centre 1993

Authors and Affiliations

  • A. F. Dixson
    • 1
  • T. Bossi
    • 3
  • E. J. Wickings
    • 4
  1. 1.CIRMFGabon
  2. 2.MRC Group on the Development and Integration of Behaviour, Sub-department of Animal BehaviourUniversity of Cambridge, MadingleyCambridgeEngland
  3. 3.Institute of AnthropologyUniversity of ZurichZurichSwitzerland
  4. 4.Primate Centre, CIRMFFrancevilleGabon

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