Abstract
This paper addresses methodological and metatheoretical aspects of the ongoing debate over the adaptive significance of Tibetan polyandry. Methodological contributions include a means of estimating relatedness of fraternal co-husbands given multigenerational polyandry, and use of Hamilton’s rule and a member-joiner model to specify how inclusive fitness gains of co-husbands may vary according to seniority, opportunity costs, and group size. These methods are applied to various data sets, particularly that of Crook and Crook (1988). The metatheoretical discussion pivots on the critique by evolutionary psychologists of adaptationist accounts of polyandry. Contrary to this critique, I argue that valid adaptationist explanations of such practices do not necessitate cognitive mechanisms evolved specifically to produce polyandry, nor that there must have been exact equivalents of Tibetan agricultural estates and social institutions in human evolutionary history. Specific issues raised when one posits either kin selection or cultural evolution to explain the adaptive features of Tibetan polyandry are also discussed.
Similar content being viewed by others
References
Alexander, Richard D. 1974 The Evolution of Social Behavior. Annual Review of Ecology and Systematics 5:325–383.
1990 Epigenetic Rules and Darwinian Algorithms: The Adaptive Study of Learning and Development. Ethology and Sociobiology 11:241–303.
Beall, Cynthia M., and Melvyn C. Goldstein 1981 Tibetan Fraternal Polyandry: A Test of Sociobiological Theory. American Anthropologist 83:5–12.
Blurton Jones, Nicholas G. 1990 Three Sensible Paradigms for Research on Evolution and Human Behavior? Ethology and Sociobiology 11:353–359.
Boone, James L. 1986 Parental Investment and Elite Family Structure: A Case Study of Late Medieval-Early Modern Genealogies. American Anthropologist 88:859–878.
Borgerhoff Mulder, Monique 1991 Human Behavioural Ecology. In Behavioural Ecology: An Evolutionary Approach, third edition, J. R. Krebs and N. B. Davies, eds. Pp. 69–98. Oxford: Blackwell.
1998 Demographic Transition: Are We Coming Any Closer to an Evolutionary Explanation? Trends in Ecology and Evolution 13(7), in press.
Borgerhoff Mulder, Monique, Peter J. Richerson, Nancy W. Thornhill, and Eckart Voland 1997 The Place of Behavioural Ecological Anthropology in the Evolutionary Social Sciences. In Human by Nature: Between Biology and the Social Sciences, P. Weingart, S. D. Mitchell, P. J. Richerson, and S. Maasen, eds. Pp. 253–282. Hillsdale, New Jersey: Erlbaum.
Boyd, Robert, and Peter J. Richerson 1985 Culture and the Evolutionary Process. Chicago: University of Chicago Press.
Buss, David M. 1989 Sex Differences in Human Mate Preferences: Evolutionary Hypotheses Tested in 37 Cultures. Behavioral and Brain Sciences 12:1–49.
Cassidy, Margaret L., and Gary R. Lee 1989 The Study of Polyandry: A Critique and Synthesis. Journal of Comparative Family Studies 20:1–11.
Chao, L. 1997 Evolution of Polyandry in a Communal Breeding System. Behavioral Ecology 8:668–674.
Clutton-Brock, T. H., ed. 1988 Reproductive Success: Studies in Individual Variation in Contrasting Breeding Systems. Chicago: University of Chicago Press.
Cosmides, Leda, and John Tooby 1987 From Evolution to Behavior: Evolutionary Psychology as the Missing Link. In The Latest on the Best: Essays on Evolution and Optimality, John Dupre, ed. Pp. 277–306. Cambridge: MIT Press.
Crook, John H. 1995 Ecology and Culture in the Adaptive Radiation of Tibetan Speaking Peoples in the Himalayas. In Recent Research on Ladakh 4 & 5, Henry Osmaston and Philip Denwood, eds. Pp. 19–37. Proceedings of the Fourth and Fifth International Colloquia on Ladakh. London: School of Oriental & African Studies, University of London.
Crook, John H., and Stamati J. Crook 1988 Tibetan Polyandry: Problems of Adaptation and Fitness. In Human Reproductive Behavior, L. Betzig, M. Borgerhoff Mulder, and P. Turke, eds. Pp. 97–114. Cambridge: Cambridge University Press.
1994 Explaining Tibetan Polyandry: Socio-Cultural, Demographic and Biological Perspectives. In Himalayan Buddhist Villages, J. H. Crook and H. D. Osmaston, eds. Pp. 735–786. Bristol: University of Bristol.
Crook, John H., and Tsering Shakya 1994 Six Families of Leh. In Himalayan Buddhist Villages, J. H. Crook and H. D. Osmaston, eds. Pp. 701–734. Bristol: University of Bristol.
Crow, J. F., and M. Kimura 1970 An Introduction to Population Genetics Theory. New York: Harper and Row.
Davies, N. B., and I. R. Hartley 1996 Food Patchiness, Territory Overlap and Social Systems: An Experiment with Dunnocks (Prunella modularis). Journal of Animal Ecology 65:837–846.
Dawkins, Richard 1982 The Extended Phenotype: The Gene as the Unit of Selection. San Francisco: W. H. Freeman.
Durham, William H. 1991 Coevolution: Genes, Culture, and Human Diversity. Stanford: Stanford University Press.
Foley, Rob A. 1995 The Adaptive Legacy of Human Evolution: A Search for the Environment of Evolutionary Adaptedness. Evolutionary Anthropology 4:194–203.
Gamble, Clive 1994 Timewalkers: The Prehistory of Global Colonization. Stroud: Alan Sutton.
Goldstein, Melvyn C. 1971 Stratification, Polyandry, and Family Structure in Central Tibet. Southwestern Journal of Anthropology 27:65–74.
1976 Fraternal Polyandry and Fertility in a High Himalayan Valley in Northwest Nepal. Human Ecology 4(3):223–233.
1977 Population, Social Structure and Strategic Behavior: An Essay on Polyandry, Fertility and Change in Limi Panchayat. Contributions to Nepalese Studies 4:47–62.
1978 Pahari and Tibetan Polyandry Revisited. Ethnology 17:325–337.
1981 New Perspectives on Tibetan Fertility and Population Decline. American Ethnologist 8:721–738.
Goldstein, Melvyn C., and Cynthia M. Beall 1982 Tibetan Fraternal Polyandry and Sociobiology: A Rejoinder to Abernethy and Fernandez. American Anthropologist 84:898–901.
Goody, Jack 1976 Production and Reproduction: A Comparative Study of the Domestic Domain. Cambridge: Cambridge University Press.
Grafen, Alan 1984 Natural Selection, Kin Selection and Group Selection. In Behavioural Ecology: An Evolutionary Approach, J. R. Krebs and N. B. Davies, eds. Pp. 62–84. Sunderland, Massachusetts: Sinauer Associates.
Haldane, J. B. S. 1956 The Argument from Animals to Man: An Examination of Its Validity for Anthropology. Journal of the Royal Anthropological Institute 86:1–14.
Hamilton, William D. 1963 The Evolution of Altruistic Behaviour. American Naturalist 97:354–356.
1975 Innate Social Aptitudes of Man: An Approach from Evolutionary Genetics. In Biosocial Anthropology, R. Fox, ed. Pp. 133–155. London: Malaby.
Hiatt, L. R. 1980 Polyandry in Sri Lanka: A Test Case for Parental Investment Theory. Man (n.s.) 15:583–602.
Irons, William G. 1979 Natural Selection, Adaptation, and Human Social Behavior. In Evolutionary Biology and Human Social Behavior, N. Chagnon and W. Irons, eds. Pp. 4–39. North Scituate, Massachusetts: Duxbury Press.
1990 Let’s Make Our Perspective Broader Rather Than Narrower: A Comment on Turke’s “Which Humans Behave Adaptively, and Why Does It Matter?” and on the So-Called DA-DP Debate. Ethology and Sociobiology 11:361–374.
1998 Adaptively Relevant Environments and the Study of Human Adaptation. Evolutionary Anthropology, in press.
Kaplan, Hillard S., Jane B. Lancaster, John A. Bock, and S. E. Johnson 1995 Fertility and Fitness among Albuquerque Men: A Competitive Labour Market Theory. In Human Reproductive Decisions: Biological and Social Perspectives, R. I. M. Dunbar, ed. Pp. 96–136. London: St. Martin’s Press.
Kelly, Robert L. 1995 The Foraging Spectrum: Diversity in Hunter-Gatherer Lifeways. Washington, D.C.: Smithsonian Institution Press.
Kitcher, Philip 1985 Vaulting Ambition: Sociobiology and the Quest for Human Nature. Cambridge, Massachusetts: MIT Press.
Levine, Nancy E. 1988 The Dynamics of Polyandry: Kinship, Domesticity, and Population on the Tibetan Border. Chicago: University of Chicago Press.
Levine, Nancy E., and Walter H. Sangree 1980 Conclusion: Asian and African Systems of Polyandry. Journal of Comparative Family Studies 11:385–410.
Levine, Nancy E., and Joan B. Silk 1997 Why Polyandry Fails: Sources of Instability in Polyandrous Marriages. Current Anthropology 38:375–398.
Potts, Rick 1996 Humanity’s Descent: The Consequences of Ecological Instability. New York: Avon.
Rogers, Alan R. 1990 The Evolutionary Economics of Human Reproduction. Ethology and Sociobiology 11:479–495.
Schuler, Sidney Ruth 1987 The Other Side of Polyandry: Property, Stratification, and Nonmarriage in the Nepal Himalayas. Boulder: Westview Press.
Sherman, Paul W., and Hudson K. Reeve 1996 Forward and Backward: Alternative Approaches to Studying Human Social Evolution. In Evolution and Human Behavior: A Critical Reader, Laura M. Betzig, ed. Pp. 147–158. Oxford: Oxford University Press.
Smith, Eric Alden 1983 Anthropological Applications of Optimal Foraging Theory: A Critical Review. Current Anthropology 24:625–651.
1985 Inuit Foraging Groups: Some Simple Models Incorporating Conflicts of Interest, Relatedness, and Central-Place Sharing. Ethology and Sociobiology 6:27–47.
Symons, Donald 1989 A Critique of Darwinian Anthropology. Ethology and Sociobiology 10:131–144.
1990 Adaptiveness and Adaptation. Ethology and Sociobiology 11:427–444.
1992 On the Use and Misuse of Darwinism in the Study of Human Behavior. In The Adapted Mind; Evolutionary Psychology and the Generation of Culture, J. H. Barkow, L. Cosmides, and J. Tooby, eds. Pp. 137–159. Oxford: Oxford University Press.
Thomas, Nicholas 1989 Domestic Structures and Polyandry in the Marquesas Islands. In Family and Gender in the Pacific: Domestic Contradictions and the Colonial Impact, Margaret Jolly and Martha Macintyre, eds. Pp. 65–83. Cambridge: Cambridge University Press.
Tooby, John, and Leda Cosmides 1990 The Past Explains the Present: Emotional Adaptations and the Structure of Ancestral Environments. Ethology and Sociobiology 11:375–424.
1992 The Psychological Foundation of Culture. In the Adapted Mind: Evolutionary Psychology and the Generation of Culture, J. H. Barkow, L. Cosmides, and J. Tooby, eds. Pp. 19–136. Oxford: Oxford University Press.
Tooby, John, and Irven DeVore 1987 The Reconstruction of Hominid Behavioral Evolution Through Strategic Modeling. In The Evolution of Human Behavior: Primate Models, Warren G. Kinzey, ed. Pp. 183–237. Albany: SUNY Press.
Turke, Paul W. 1990 Which Humans Behave Adaptively, and Why Does It Matter? Ethology and Sociobiology 11:305–339.
Werren, John H., and H. Ronald Pulliam 1981 An Intergenerational Model of the Cultural Evolution of Helping Behavior. Human Ecology 9:465–483.
Whittingham, L. A., P. O. Dunn, and R. D. Magrath 1997 Relatedness, Polyandry and Extra-Group Paternity in the Cooperatively-Breeding White-Browed Scrubwren (Sericornis frontalis). Behavioral Ecology and Sociobiology 40:261–270.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Smith, E.A. Is tibetan polyandry adaptive?. Hum Nat 9, 225–261 (1998). https://doi.org/10.1007/s12110-998-1004-3
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s12110-998-1004-3