Skip to main content
Log in

Canine Dimorphism and Interspecific Canine Form in Cebus

  • Published:
International Journal of Primatology Aims and scope Submit manuscript

Abstract

I investigated canine dimorphism and interspecific canine form in adult specimens from 4 capuchin species (Cebus albifrons, C. apella, C. capucinus, and C. olivaceus). I used various univariate and multivariate statistics, which are based on 6 variables, to test several hypotheses that are based upon the finding that canine dimorphism is strongly associated with intermale competition in platyrrhines (Kay et al., 1988), Greenfield (1992a), Plavcan and van Schaik (1992, 1994). Results from the indices of canine dimorphism and the unpaired t-tests corroborate the prediction that males of each species possess significantly larger canines than those of females. Large male canines are especially prominent in 2 variables, maxillary and mandibular canine height. Greene's t-test (1989) does not support the prediction that Cebus apella and C. olivaceus possess a larger degree of canine dimorphism relative to C. albifrons and C. capucinus. No interspecific differences in degree of canine dimorphism are indicated by this test. Results of the discriminant function analyses (DFA) do not find that Cebus apella and C. olivaceus possess different canine form relative to C. albifrons and C. capucinus as predicted. However, Cebus apella is differentiated from the untufted capuchins (C. albifrons, C. capucinus, and C. olivaceus) by the DFA. I suggest that intermale competition is the primary selective force underlying the observed morphological patterns; however, it does not explain all the variation associated with canine dimorphism in Cebus.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Albrecht, G. H. (1980). Multivariate analysis and the study of form, with special reference to canonical variate analysis. Am. Zool. 20: 679-693.

    Google Scholar 

  • Defler, T. R. (1979a). On the ecology and behavior of Cebus albifrons in eastern Colombia: I. Ecology. Primates 20: 475-490.

    Google Scholar 

  • Defler, T. R. (1979b). On the ecology and behavior of Cebus albifrons in eastern Columbia: II. Behavior. Primates 20: 491-502.

    Google Scholar 

  • Defler, T. R. (1982). A comparison of intergroup behavior in Cebus albifrons and C. apella. Primates 23: 385-392.

    Google Scholar 

  • Fedigan, L. M. (1993). Sex differences and intersexual relations in adult white-faced capuchins (Cebus capucinus). Int. J. Primatol. 14: 853-877.

    Google Scholar 

  • Fleagle, J. G. (1999). Primate Adaptation and Evolution, 2nd edn., Academic Press, San Diego, pp. 155-157.

    Google Scholar 

  • Ford, S. M. (1994). Evolution of sexual dimorphism in body weight in platyrrhines. Am. J. Primatol. 34: 221-244.

    Google Scholar 

  • Fragaszy, D. M., Visalberghi, E., and Robinson, J. G. (1990). Variability and adaptability in the Genus Cebus. Folia Primatol. 54: 114-118.

    Google Scholar 

  • Freese, C. H., and Oppenheimer, J. R. (1981). The capuchin monkeys, genus Cebus. In Coimbra-Filho, A. F., and Mittermeier, R. A. (Eds.), Ecology and Behavior of Neotropical Primates, Vol. 1, Acedemia Brasileira de Ciencias, Rio de Janeiro, pp. 331-390.

    Google Scholar 

  • Greene, D. L. (1989). Comparison of t-tests for differences in sexual dimorphism between populations. Am. J. Phys. Anthropol. 79: 121-125.

    Google Scholar 

  • Greenfield, L. O. (1992a). Relative canine size, behavior and diet in male cebids. J. Hum. Evol. 23: 469-480.

    Google Scholar 

  • Greenfield, L. O. (1992b). A nonadaptive dental trait. Int. J. Primatol. 13: 631-657.

    Google Scholar 

  • Greenfield, L. O. (1992c). Origin of the human canine: A new solution to en old enigma. Yrbk. Phys. Anthropol. 35: 153-184.

    Google Scholar 

  • Greenfield, L. O. (1996). Correlated response of homologous characteristics in the anthropoid anterior dentition. J. Hum. Evol. 31: 1-19.

    Google Scholar 

  • Hartwig, W. C. (1993). Comparative Morphology, Ontogeny and Phylogenetic Analysis of the Platyrrhine Cranium, PhD Thesis, University of California at Berkeley.

  • Izawa, K. (1980). Social behavior of the black-capped capuchin (Cebus apella). Primates 21: 443-467.

    Google Scholar 

  • Janson, C. H. (1984). Female choice and mating system of the brown capuchin monkey Cebus apella (Primates: Cebidae). Z. Tier. 65: 177-200.

    Google Scholar 

  • Janson, C. H. (1985). Aggressive competition and individual food consumption in wild brown capuchin monkeys (Cebus apella). Behav. Ecol. Sociobiol. 18: 125-138.

    Google Scholar 

  • Janson, C. H. (1986a). Capuchin counterpoint. Natural History 95: 45-53.

    Google Scholar 

  • Janson, C. H. (1986b). The mating system as a determinant of social evolution in capuchin monkeys. In Else, J., and Lee, P. C. (Eds.), Primate Ecology and Conservation, Cambridge University Press, Cambridge, pp. 169-179.

    Google Scholar 

  • Kay, R. F., Plavcan, J. M., Glander, K. E., and Wright, P. C. (1988). Sexual selection and canine dimorphism in New World monkeys. Am. J. Phys. Anthropol. 77: 385-397.

    Google Scholar 

  • Kinzey, W. G. (1997). New World Primates: Ecology, Evolution, and Behavior, Aldine de Gruyter, New York, pp. 248-257.

    Google Scholar 

  • Klecka, W. R. (1980). Discriminant Analysis, Sage, London.

    Google Scholar 

  • Manson, J. H., Perry, S., and Parish, A. R. (1997). Nonconceptive sexual behavior in bonobos and capuchins. Int. J. Primatol. 18: 767-786.

    Google Scholar 

  • Masterson, T. J. (1996). Cranial Form in Cebus: An Ontogenetic Analysis of Cranial Form and Sexual Dimorphism, PhD Thesis, University of Wisconsin-Madison.

  • Masterson, T. J. (1997). Sexual dimorphism and interspecific cranial form in two capuchin species: Cebus albifrons and C. apella. Am. J. Phys. Anthropol. 104: 487-511.

    Google Scholar 

  • Masterson, T. J., and Hartwig, W. C. (1998). Degrees of sexual dimorphism in Cebus and other New World primates. Am. J. Phys. Anthropol. 107: 243-256.

    Google Scholar 

  • O'Brien, T. G., and Robinson, J. G. (1993). Stability of social relationships in female wedge-capped capuchin monkeys. In Pereira, M. E., and Fairbanks, L. A. (Eds.), Juvenile Primates: Life History, Development, and Behavior, Oxford University Press, New York, pp. 197-210.

    Google Scholar 

  • Perry, S. (1996a). Intergroup encounters in wild white-faced capuchins (Cebus capucinus). Int. J. Primatol. 17: 309-330.

    Google Scholar 

  • Perry, S. (1996b). Female-female social relationships in wild white-faced capuchins, Cebus capucinus.). Am. J. Primatol. 40: 167-182.

    Google Scholar 

  • Perry, S. (1997). Male-female social relationships in wild white-faced capuchins, Cebus capucinus. Behaviour 134: 477-510.

    Google Scholar 

  • Perry, S. (1998). Male-male social relationships in wild white-faced capuchins, Cebus capucinus. Behaviour 135: 139-172.

    Google Scholar 

  • Phillips, K. A., Bernstein, I. S., Dettmer, E. L., Devermann, H., and Powers, M. (1994). Sexual behavior in brown capuchins (Cebus apella). Int. J. Primatol. 15: 907-917.

    Google Scholar 

  • Plavcan, J. M. (1998). Correlated response, competition, and female canine size in primates. Am. J. Phys. Anthropol. 107: 401-416.

    Google Scholar 

  • Plavcan, J. M., and Kay, R. F. (1988). Sexual dimorphism and dental variability in platyrrhine primates. Int. J. Primatol. 9: 169-178.

    Google Scholar 

  • Plavcan, J. M., and van Schaik, C. P. (1992). Intrasexual competition and canine dimorphism in anthropoid primates. Am. J. Phys. Anthropol. 87: 461-477.

    Google Scholar 

  • Plavcan, J. M., and van Schaik, C. P. (1994). Canine dimorphism. Evol. Anthropol. 2: 208-214.

    Google Scholar 

  • Plavcan, J. M., and van Schaik, C. P. (1997). Intrasexual competition and body weight dimorphism in anthropoid primates. Am. J. Phys. Anthropol. 103: 37-68.

    Google Scholar 

  • Plavcan, J. M., van Schaik, C. P., and Kappeler, P. M. (1995). Competition, coalitions and canine size in primates. J. Hum. Evol. 28: 245-276.

    Google Scholar 

  • Reyment, R. A., Blackith, R. E., and Campbell, N. A. (1984). Multivariate Morphometrics, 2nd edn., Academic Press, New York.

    Google Scholar 

  • Robinson, J. G. (1988a). Demography and group structure in wedge-capped capuchin monkeys, Cebus olivaceus. Behaviour 104: 202-232.

    Google Scholar 

  • Robinson, J. G. (1988b). Group size in wedge-capped capuchin monkeys (Cebus olivaceus) and the reproductive success of males and females. Behav. Ecol. Sociobiol. 23: 187-197.

    Google Scholar 

  • Rose, L. M. (1994a). Sex differences in diet and foraging behavior in white-faced capuchins (Cebus capucinus). Int. J. Primatol. 15: 95-114.

    Google Scholar 

  • Rose, L. M. (1994b). Benefits and costs of resident males to females in white-faced capuchins, Cebus capucinus. Am. J. Primatol. 32: 235-248.

    Google Scholar 

  • Rowe, N. (1996). The Pictorial Guide to the Living Primates, Pogonias Press, East Hampton, New York.

    Google Scholar 

  • Sokal, R. R., and Rohlf, F. J. (1995). Biometry, 3rd edn., WH Freeman, New York.

    Google Scholar 

  • Terborgh, J. (1983). Five New World Primates: A Study in Comparative Ecology, Princeton University Press, Princeton, NJ.

    Google Scholar 

  • Ward, J. H. (1963). Hierarchical grouping to optimize an objective function. J. Am. Stat. Ass. 58: 236-244.

    Google Scholar 

  • Zar, J. H. (1984). Biostatistical Analysis, 2nd edn., Prentice-Hall, Englewood Cliffs, NJ.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Masterson, T.J. Canine Dimorphism and Interspecific Canine Form in Cebus . International Journal of Primatology 24, 159–178 (2003). https://doi.org/10.1023/A:1021406831019

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1021406831019

Navigation