International Journal of Primatology

, Volume 12, Issue 3, pp 231–257

Dominance, age, and reproductive success in free-ranging female hanuman langurs (Presbytis entellus)

  • Carola Borries
  • Volker Sommer
  • Arun Srivastava


Correlations among female age, dominance, and reproduction were investigated for a 12-year period in free-ranging, provisioned Hanuman langurs (Presbytis entellus), living in one-male groups near Jodhpur in Rajasthan, India. Of 2940 displacement episodes, 27% occurred over natural food, 26% over provisioned food, 8% over grooming, 23% over position and shade, and 16% for other reasons. It was possible to reconstruct a displacement hierarchy that was linear and stable over short periods but fluctuated according to the age composition of the troop, resulting in an age inversed dominance structure. Females occupied top ranks as soon as they experienced menarche (around 2.4 years of age) and gradually declined thereafter, with postmenopausal females (≥30 years) being the lowest ranking individuals. Old females tended to be peripheral, while young females were highly social and active. Fertility peaked at about 7 years and gradually decreased thereafter, but infant mortality was much higher in young females than in old ones. During years when females gave birth, their ranks, especially those of old females, were higher than the average expectation for their age class, which suggests that females compete more vigorously if they have an infant. Reproductive success (i.e., infant survival to ≥2 years) declined significantly from high-over middle-to low-ranking females but did not differ for the three age classes investigated, because the higher fecundity of young females was balanced by better rearing success of older females. These results are discussed in light of the controversy over whether the langur social system is strongly influenced by kin selection (Hrdy and Hrdy, 1976; Dolhinow et al., 1979).

Key words

Presbytic displacement female dominance food competition fertility reproductive success 


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  1. Alexander, B. K., and Bowers, J. M. (1969). Social organization of a troop of Japanese monkeys in a two acre enclosure.Folia Primatol. 10: 230–242.PubMedGoogle Scholar
  2. Altmann, J. (1974). Observational study of behavior: sampling methods.Behaviour 49: 227–267.PubMedGoogle Scholar
  3. Altmann, J., Hausfater, G., and Altmann, S. A. (1988). Determinants of reproductive success in savannah baboons,Papio cynocephalus. In Clutton-Brock, T. H. (ed.),Reproductive Success: Studies of Individual Variation in Contrasting Breeding Systems, University of Chicago Press, Chicago and London, pp. 403–418.Google Scholar
  4. Bernstein, I. S. (1969). Stability of the status hierarchy in a pigtail monkey group (Macaca nemestrina).Anim. Behav. 17: 452–458.CrossRefGoogle Scholar
  5. Bingham, L. R., and Hahn, T. C. (1974). Observations on the birth of a lowland gorilla,Gorilla gorilla gorilla in captivity.Int. Zoo. Yb. 14: 113–115.Google Scholar
  6. Bishop, N. (1975)Social Behavior of Langur Monkeys (Presbytis entellus) in a High Altitude Environment, Ph.D. thesis, University of California, Berkeley.Google Scholar
  7. Boggess, J. E. (1976).Social Behavior of the Himalayan Langur (Presbytis entellus) in Eastern Nepal, Ph.D. thesis, University of California, Berkeley.Google Scholar
  8. Borries, C. (1988). Patterns of grandmaternal behaviour in free-ranging Hanuman langurs (Presbytis entellus).Hum. Evol. 3: 239–260.CrossRefGoogle Scholar
  9. Borries, C. (1989a).Konkurrenz unter freilebenden Langurenweibchen (Presbytis entellus), Ph.D. thesis, Georg-August-Universität, Göttingen.Google Scholar
  10. Borries, C. (1989b). Mothers and adult daughters—on kinship in free-ranging Hanuman langurs (Presbytis entellus).Primate Rep. 25: 10.Google Scholar
  11. Bulger, J., and Hamilton, W. J., III (1987). Rank and density correlates of inclusive fitness measures in a natural chacma baboon (Papio ursinus) troop.Int. J. Primatol. 8: 635–650.Google Scholar
  12. Clutton-Brock, T. H., Albon, S. D., Gibson, R. M., and Guinness, F. E. (1979). The logical stage: Adaptive aspects of fighting in red deer.Anim. Behav. 27: 211–225.CrossRefGoogle Scholar
  13. Dittus, W. P. J. (1979). The evolution of behaviors regulating density and age-specific sex ratios in a primate population.Behaviour 69: 266–302.Google Scholar
  14. Dolhinow, P., McKenna, J. J., and Vonder Haar Laws, J. (1979). Rank and reproduction among female langur monkeys: Aging and improvement (They're not just getting older, they're getting better).Aggr. Behav. 5: 19–30.Google Scholar
  15. Drickamer, L. C. (1974). A ten-year summary of reproductive data for free rangingMacaca mulatta.Folia Primatol. 21: 61–80.PubMedGoogle Scholar
  16. Dubois, J. A. (1989). The effects of parturition on patas females' social interaction.Am. J. Primatol. 18: 142.Google Scholar
  17. Dunbar, R. I. M. (1984).Reproductive Decisions: An Economic Analysis of Gelada Baboon Social Strategies, Princeton University Press, Princeton, N.J.Google Scholar
  18. Dunbar, R. I. M. (1989). Reproductive strategies of female gelada baboons. In Rasa, A. E., Vogel, C., and Voland, E. (eds.),The Sociobiology of Sexual and Reproductive Strategies, Chapman and Hall, London, pp. 74–92.Google Scholar
  19. Fairbanks, L. A., and McGuire, M. T. (1984). Determinants of fecundity and reproductive success in captive vervet monkeys.Am. J. Primatol. 7: 27–38.CrossRefGoogle Scholar
  20. Fedigan, L. M. (1983). Dominance and reproductive success in primates.Yb. Phys. Anthropol. 26: 91–129.Google Scholar
  21. Fisher, R. A. (1958).The Genetical Theory of Natural Selection, Dover, New York.Google Scholar
  22. Geist, V. (1971).Mountain Sheep, University of Chicago Press, Chicago.Google Scholar
  23. Glander, K. E. (1980). Reproduction and population growth in free-ranging mantled howling monkeys.Am. J. Phys. Anthropol. 53: 23–36.CrossRefGoogle Scholar
  24. Goodall, J. (1986)The Chimpanzees of Gombe. Patterns of Behavior, Belknap Press, Cambridge, Mass.Google Scholar
  25. Gray, J. P. (1985).Primate Sociobiology, Hraf Press, New Haven, Conn.Google Scholar
  26. Hamilton, W. D. (1964). The genetical evolution of social behavior, parts 1 and 2.J. Theor. Biol. 7: 1–51.PubMedCrossRefGoogle Scholar
  27. Harcourt, A. H. (1987). Dominance and fertility among female primates.J. Zool. 213: 471–487.Google Scholar
  28. Harley, D. (1983).Reproduction in Captive Female Langur Monkeys (Presbytis entellus), Ph.D. thesis, University of California, Berkeley.Google Scholar
  29. Hausfater, G. (1975) Dominance and reproduction in baboon (Papio cynocephalus).Contr. Primatol. 7, Karger, Basel.Google Scholar
  30. Hrdy, S. B. (1977)The Langurs of Abu. Female and Male Strategies of Reproduction. Harvard University Press, Cambridge, Mass.Google Scholar
  31. Hrdy, S. B., and Hrdy, D. B. (1976). Hierarchical relations among female Hanuman langurs (Primates:Colobinae, Presbytis entellus).Science 193: 913–915.CrossRefPubMedGoogle Scholar
  32. Jay, P. C. (1963).The Social Behavior of the Langur Monkey, Ph.D. thesis, University of Chicago, Chicago.Google Scholar
  33. Johnson, R. L. (1989). Live birthrates in two free-ranging rhesus breeding colonies in the Florida keys.Primates 30: 433–437.CrossRefGoogle Scholar
  34. Jones, C. B. (1980). The functions of status in the mantled howler monkey,Albouatta palliata Gray: Intraspecific competition for group membership in a folivorous neotropical primate.Primates 21: 389–405.CrossRefGoogle Scholar
  35. Jones, C. B. (1983). Social organization of captive black howler monkeys (Alouatta caraya): “Social competition” and the use of non-damaging behavior.Primates 24: 25–39.CrossRefGoogle Scholar
  36. Lee, P. C. (1987). Nutrition, fertility, and maternal investment in primates.J. Zool. 213: 409–422.Google Scholar
  37. Loy, J. (1975). The descent of dominance inMacaca: Insights into the structure of human societies. In Tuttle, R. H. (ed.)Socioecology and Psychology of Primates, Mouton, Paris, pp. 153–180.Google Scholar
  38. McKenna, J. J. (1975).An Analysis of the Social Roles and Behaviors of Seventeen Captive Hanuman Langurs (Presbytis entellus), Ph.D. thesis, University of Oregon, Eugene.Google Scholar
  39. Meikle, D. B., Tilford, B. L., and Vessey, S. H. (1984). Dominance rank, secondary sex ratio, and reproduction of offspring in polygynous primates.Am. Nat. 124: 173–188.CrossRefGoogle Scholar
  40. Mohnot, S. M. (1974).Ecology and Behaviour of the Common Indian Langur, Presbytis entellus Dufrèsene, Ph.D. thesis, University of Jodhpur Jodhpur.Google Scholar
  41. Nowell, L. H., and Heidrich, A. G. (1978). Factors affecting dominance relationships in adult female baboons. In Chivers, D. J., and Herbert, J. (eds.),Recent Advances in Primatology, Vol. 1. Behaviour, Academic Press, London, pp. 63–66.Google Scholar
  42. Paul, A. (1984).Zur Sozialstruktur und Sozialisation semifreilebender Berberaffen (Macaca sylvanus L. 1758). Ph.D. thesis, Christian-Albrechts-Universität, Kiel.Google Scholar
  43. Paul, A., and Küster, J. (1988). Life-history patterns of Barbary macaques (Macaca sylvanus) at Affenberg Salem. In Fa, J. E., and Southwick, C. H., (eds.),Ecology and Behavior of Food-Enhanced Primate Groups, Alan R. Liss, New York, pp. 199–228.Google Scholar
  44. Post, D., Hausfater, G., and McCuskey, S. (1980). Feeding behavior of yellow baboons (Papio cynocephalus): Relationship to age, gender, and dominance rank.Folia Primatol. 34: 170–195.PubMedGoogle Scholar
  45. Ripley, S. (1965).The Ecology and Social Behaviors of the Ceylon Gray Langur, Presbytis entellus thersites, Ph.D. thesis, University of California, Berkeley.Google Scholar
  46. Robinson, J. G. (1982). Intrasexual competition and mate choice in primates.Am. J. Primatol. Suppl. 1: 131–144.CrossRefGoogle Scholar
  47. Sade, D. S. (1967). Determinants of dominance in a group of free-ranging rhesus monkeys. In Altmann, S. A. (ed.),Social Communication Among Primates, University of Chicago Press, Chicago, pp. 99–114.Google Scholar
  48. Schjelderup-Ebbe, T. (1992). Beiträge zur Sozialpsychologie des Haushuhns.Z. Psychol. 88: 225–252.Google Scholar
  49. Seger, J. (1977). A numerical method for estimating coefficients of relationship in a langur troop. In Hrdy, S. B.,The Langurs of Abu-Female and Male Strategies of Reproduction, Harvard University Press, Cambridge, Mass, pp. 317–326.Google Scholar
  50. Seyfarth, R. M. (1976). Social relationships among adult female baboons.Anim. Behav. 24: 917–938.CrossRefGoogle Scholar
  51. Silk, J. B. (1987). Social behavior in evolutionary perspective. In Smuts, B. B., Cheney, D. L., Seyfarth, R. M., Wrangham, R. W., and Struhsaker, T. T. (eds.),Primate Societies, University of Chicago Press, Chicago, 318–329.Google Scholar
  52. Silk, J. B., Clark-Wheatley, C. B., Rodman, P. S., and Samuels, A. (1981). Differential reproductive success and facultative adjustment of sex ratios among captive female bonnet macaques (Maccaca radiata).Anim. Behav., 29: 1106–1120.CrossRefGoogle Scholar
  53. Small, M. F. (1981). Body fat, rank, and nutritional status in a captive group of rhesus macaques.Int. J. Primatol. 2: 91–96.Google Scholar
  54. Sommer, V. (1985).Weibliche und männliche Reproduktionsstrategien der Hanuman-Languren (Presbytis entellus) von Jodhpur, Rajasthan/Indien, Ph.D. thesis, Georg-August-Universität, Göttingen.Google Scholar
  55. Sommer, V. (1987). Infanticide among free-ranging langurs (Presbytis entellus) at Jodhpur (Rajasthan/India): Recent observations and a reconsideration of hypotheses.Primates 28: 163–197.CrossRefGoogle Scholar
  56. Sommer, V. (1989). Infant mistreatment in langur monkeys-sociobiology tackled from the wrong end? In Rasa, A. E., Vogel, C., and Voland, E. (eds.),The Sociobiology of Sexual and Reproductive Strategies, Chapman and Hall, London, pp. 110–127.Google Scholar
  57. Sommer, V., and Rajpurohit, L. S. (1989). Male reproductive success in harem troops of Hanuman langurs (Presbytis entellus).Int. J. Primatol. 10: 293–317.Google Scholar
  58. Sommer, V., Srivastava, A., and Borries, C. (1990). Cycles, sexuality and conception in free-ranging langurs (Presbytis entellus) (submitted for publication).Google Scholar
  59. Srivastava, A. (1989).Feeding Ecology and Behaviour of Hanuman Langur, Presbytis entellus, Ph.D. thesis, University of Jodhpur, Lodhpur.Google Scholar
  60. Strum, S. C., and Western, J. D. (1982). Variations in fecundity with age and environment in olive baboons (Papio anubis).Am. J. Primatol. 3: 61–76.CrossRefGoogle Scholar
  61. Sugiyama, Y. (1967). Social organization of Hanuman langurs. In Altmann, S. A. (ed.),Social Communication Among Primates, University of Chicago Press, Chicago, pp. 221–236.Google Scholar
  62. Sugiyama, Y. (1971). Characteristics of the social life of bonnet macaques (Macaca radiata).Primates 12: 247–266.CrossRefGoogle Scholar
  63. Sugiyama, Y., and Ohsawa, H. (1982). Population dynamics of Japanese monkeys with special reference to the effect of artificial feeding.Folia Primatol. 39: 238–263.PubMedGoogle Scholar
  64. Van Noordwijk, M. A., and Van Schaik, C. P. (1987). Competition among female long-tailed macaques,Macaca fascicularis.Anim. Behav. 35: 577–589.CrossRefGoogle Scholar
  65. Vogel, C. (1976). Ökologie, Lebensweise und Sozialverhalten der grauen Languren in verschiedenen Biotopen Indiens, Parey, Berlin.Google Scholar
  66. Waser, P. M. (1978). Postreproductive survival and behaviors in a free-ranging female mangabey (Cercocebus albigena).Folia Primatol. 29: 142–160.PubMedGoogle Scholar
  67. Weisbard, C., and Goy, R. W. (1976). Effect of parturition and group composition on competitive drinking order in stumptail macaques (Macaca arctoides).Folia Primatol. 25: 95–121.PubMedGoogle Scholar
  68. Whitten, P. L. (1983). Diet and dominance among female vervet monkeys (Cercopithecus aethiops).Am. J. Primatol. 5: 139–159.CrossRefGoogle Scholar
  69. Whitten, P. L. (1984). Competition among female vervet monkeys. In Small, M. F. (ed.),Female Primates: Studies by Woman Primatologist, Alan R. Liss, New York, pp. 127–140.Google Scholar
  70. Winkler, P. (1981).Zur Öko-Ethologie freilebender Hanuman-Languren (Presbytis entellus entellus Dufresne, 1797) in Jodhpur (Rajasthan), Indien, Ph.D. thesis, georg-August-Universität, Göttingen.Google Scholar
  71. Winkler, P., Loch, H., and Vogel, C. (1984). Life history of Hanuman langurs (Presbytis entellus)—reproductive parameters, infant mortality, and troop development.Folia Primatol. 43: 1–23.PubMedCrossRefGoogle Scholar
  72. Yoshiba, K. (1968). Local and intertroop variability in ecology and social behavior of common Indian langurs. In Jay, P. (ed.),Primates: Studies in Adaptation and Variability, Holt, Rinehart and Winston, New York, pp. 217–242.Google Scholar

Copyright information

© Plenum Publishing Corporation 1991

Authors and Affiliations

  • Carola Borries
    • 1
  • Volker Sommer
    • 1
  • Arun Srivastava
    • 2
  1. 1.Institut für AnthropologieUniversität GöttingenGöttingenFRG
  2. 2.Department of ZoologyUniversity of JodhpurJodhpurIndia

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