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Male Age Composition and Severity of Conflicts

Published online by Cambridge University Press:  17 May 2016

Christian G. Mesquida  and
Neil I. Wiener
Christian G. Mesquida
Affiliation:
York University, Canada
Neil I. Wiener
Affiliation:
York University, Canada
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Abstract

From a behavioral ecology perspective, all forms of warfare are instances of collective aggression perpetrated predominantly by coalitions of young men. Such coalitions are manifestations of cross-cultural sex differences in aggressive behavior and may be conceptualized as a form of intrasexual competition, occasionally to obtain mates, but more often to acquire resources for the attraction and retention of mates. All societies have young males, yet wars are discrete events that can take place even after long periods of peace. Therefore, an additional factor is needed to explain the episodic nature of the phenomenon. We have proposed (Mesquida and Wiener, 1996) that the most reliable factor in explaining episodes of coalitional aggression is the relative abundance of young males. In this article, we present additional evidence to that effect. The ratio of the number of men ages 15 to 29 years of age versus men 30 and older in a population appears to be associated with the occurrence and severity of conflicts as measured by the number of war casualties. A series of analyses of demographic and war casualty data indicates that the relative prevalence of young men consistently accounts for more than one third of the variance in severity of conflicts.

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Articles
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Politics and the Life Sciences , Volume 18 , Issue 2 , September 1999 , pp. 181 - 189
Copyright
Copyright © Association for Politics and the Life Sciences 

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References

Alexander, R.D. and Borgia, G. (1979). “n the Origin and Basis of the Male-Female Phenomenon.” In Blum, M.F. and Blum, N. (eds.), Sexual Selection and Reproductive Competition in Insects. New York: Academic Press.Google Scholar
Betzig, L.L. (1985). Despotism and Differential Reproduction: A Darwinian View of History. Hawthorne, NY: Aldine.Google Scholar
Betzig, L.L. (1988). “Mating and Parenting in Darwinian Perspective.” In Betzig, L. L., Borgerhoff Mulder, M., and Turke, P. (eds.), Human Reproductive Behavior: A Darwinian Perspective. Cambridge: Cambridge University Press.Google Scholar
Blurton Jones, N.G. et al. (1992). “Demography of the Hazda.” American Journal of Physical Anthropology 89: 159–81.Google Scholar
Bollen, K.A. (1980). “Issues in the Comparative Measurement of Political Democracy.” American Sociological Review 45: 370–90.CrossRefGoogle Scholar
Bouthoul, G. (1968). “De Certains Complexes et de la Pyramide des Ages.” Guerre et Paix 4: 10–22Google Scholar
Bouthoul, G. (1970). Traite de Polemologie: Sociologie des guerres. Methodes. Doctrines et Opinions sur la Guerre. Paris: Payot.Google Scholar
Bouthoul, G. and Carrere, R. (1978). “A List of the 366 Major Armed Conflicts of the Period 1740–1974.” Peace Research 10 (3): 83–108.Google Scholar
Buss, D.M. (1987). “Sex Differences in Human Mate Selection Criteria: An Evolutionary Perspective.” In Crawford, C., Smith, M., and Krebs, D. (eds.), Sociobiology and Psychology: Ideas, Issues and Applications. Hillsdale, NJ: L. Erlbaum Associates.Google Scholar
Buss, D.M. (1989). “Sex Differences in Human Mate Preferences: Evolutionary Hypotheses Tested in 37 Cultures.” Behavioral and Brain Sciences 12: 1–14.CrossRefGoogle Scholar
Chagnon, N.A. (1988). “Life Histories, Blood Revenge, and Warfare in a Tribal Population.” Science 239: 985–92.Google Scholar
Chagnon, N.A. (1990). “Reproductive and Somatic Conflicts of Interest in the Genesis of Violence and Warfare among Tribesmen.” In Haas, J. (ed.), The Anthropology of War. Cambridge: Cambridge University Press.Google Scholar
Choucri, N. and North, R.C. (1975). Nations in Conflict. San Francisco: W.H. Freeman.Google Scholar
Colinvaux, P.A. (1980). The Fates of Nations: A Biological Theory of History. New York: Simon and Schuster.Google Scholar
Clarke, E. (1957). My Mother Who Fathered Me. London: Allen and Unwin.Google Scholar
Daly, M. and Wilson, M. (1994). “Evolutionary Psychology of Male Violence.” In Archer, J. (ed.), Male Violence. London: Routledge.Google Scholar
Durham, W.H. (1979). Scarcity and Survival in Central America: Ecological Origins of the Soccer War. Stanford, CA: Stanford University Press.Google Scholar
Early, J.D. and Peters, J.F. (1990). The Population Dynamics of Mucajai Yanomama. New York: Academic Press.Google Scholar
Ehrlich, P.R., Ehrlich, A.H., and Holden, J.P. (1977). Ecoscience: Population, Resources, Environment. San Francisco, CA: W.H. Freeman.Google Scholar
Facts on File: World News Digest (1980–1998). New York: Facts on File, Inc.Google Scholar
Fix, A.G. (1977). The Demography of the Semai Senoi. Ann Arbor, Ml: Museum of Anthropology.CrossRefGoogle Scholar
Glossop, R.J. (1987). Confronting War. London: McFarlan and Company.Google Scholar
Grammer, K. (1989). “Human Courtship Behaviour: Biological Bases and Cognitive Processing.” In Rasa, A.E., Vogel, C., and Voland, E. (eds.), The Sociobiology of Sexual and Reproductive Strategies. London: Chapman and Hall.Google Scholar
Hart, C.W.M. and Pilling, A.R. (1960). The Tiwi of North Australia. New York: Holt, Rinehart and Winston.Google Scholar
Hill, K. and Hurtado, A.M. (1996). Ache Life History: The Ecology and Demography of a Foraging People. New York: Aldine de Gruyter.Google Scholar
Homer-Dixon, T.F., Boutwell, J.H., and Rathjens, G.W. (1993). “Environmental Change and Violent Conflict.” Scientific American 268 (February): 38–45.Google Scholar
Howell, N. (1979). Demography of the Dobe !Kung. New York: Academic Press.Google Scholar
Irons, W. (1983). “Human Female Reproductive Strategies.” In Wasser, S. (ed.), Social Behavior of Female Vertebrates. New York: Academic Press.Google Scholar
Kelly, R.C. (1977). Etoro Social Structure. Ann Arbor, MI: University of Michigan Press.Google Scholar
Kendall, M.G. and Stuart, A. (1963). The Advanced Theory of Statistics. Vol. 1. New York: Hafner Publishing.Google Scholar
Kidron, M. and Segal, R. (1995). State of the World Atlas. Fifth edition. London: Penguin Reference.Google Scholar
Krahn, H. et al. (1986). “Income Inequality and Homicide Rates.” Criminology 24: 269–95.CrossRefGoogle Scholar
Leroy, M. (1978). Population and World Politics: The Interrelationships between Demographic Factors and International Relations. Leiden, Netherlands: M. Nijhoff Social Sciences Division.Google Scholar
Levy, J.S. (1983). War in the Modern Great Power System, 1494–1975. Lexington, KY: University Press of Kentucky.Google Scholar
Lockard, J.S. and Adams, R.M. (1981). “Human Serial Polygyny: Demographic, Reproductive, Marital, and Divorce Data.” Ethology and Sociobiology 2: 177–86.Google Scholar
Low, B.S. (1990). “ccupational Status, Land Ownership, and Reproductive Behavior in the Nineteenth Century Sweden: Tuna Parish.” American Anthropologist 92: 115–26.CrossRefGoogle Scholar
Low, B.S. (1993). “An Evolutionary Perspective on War.” In Zimmerman, W. and Jacobson, H. (eds.), Behavior, Culture, and Conflict in World Politics. Ann Arbor, Ml: University of Michigan Press.Google Scholar
Manson, J.H. and Wrangham, R.W. (1991). “Intergroup Aggression in Chimpanzees and Humans.” Current Anthropology 32: 369–77.CrossRefGoogle Scholar
McNeil, W.H. (1983). The Pursuit of Power: Technology, Armed Force and Society since A.D. 1000. Oxford: Basil Blackwell.Google Scholar
Mesquida, C.G. and Wiener, N.I. (1996). “Human Collective Aggression: A Behavioral Ecology Perspective.” Ethology and Sociobiology 17: 247–62.Google Scholar
Miller, G.F. (1998). “How Mate Choice Shaped Human Nature: A Review of Sexual Selection and Human Evolution.” In Crawford, C. and Krebs, D. L. (eds.), Handbook of Evolutionary Psychology. Mahwah, NJ: Lawrence Erlbaum Associates.Google Scholar
Mitchell, B.R. (1982). International Historical Statistics: Africa and Asia. New York: New York University Press.Google Scholar
Mitchell, B.R. (1983). International Historical Statistics: The Americas and Australia. London: Macmillan.Google Scholar
Mitchell, B.R. (1995). International Historical Statistics: Africa, Asia and Oceania. New York: Stockton Press.Google Scholar
Moller, H. (1967/68). “Youth as a Force in the Modern World.” Comparative Studies in Society and History 10: 237–60.Google Scholar
Moore, J.H. (1990). “The Reproductive Success of Cheyenne War Chiefs.” Current Anthropology 31: 322–30.Google Scholar
Murdock, G.P. (1949). Social Structure. New York: Macmillan Publishing.Google Scholar
Neel, J.V. and Chagnon, N.A. (1968) “The Demography of Two Tribes of Primitive, Relatively Unaccultured American Indians.” Proceedings of the National Academy of Sciences 59; 680–689.Google Scholar
Rappaport, R.A. (1967) Pigs for the Ancestors: Ritual in the Ecology of a New Guinea People. New Haven, CT: Yale University Press.Google Scholar
Roberts, D.F. (1956). “A Demographic Study of a Dinka Village.” Human Biology 28: 323–49.Google ScholarPubMed
Sillitoe, P. (1977). “Land Shortage and War in New Guinea.” Ethnology 16: 71–81.CrossRefGoogle Scholar
Singer, J.D. and Small, M. (1972). The Wages of War 1816–1965: A Statistical Handbook. New York: John Wiley and Sons.Google Scholar
Sivard, R.L. (1988). World Military and Social Expenditures. Washington, DC: World Priorities.Google Scholar
Smith, M.G. (1962). West Indian Family Structure. Seattle, WA: University of Washington Press.Google Scholar
Sullivan, M.J. (1991). Measuring Social Values: The Banding of 162 Countries. New York: Greenwood Press.Google Scholar
Symons, D. (1979). The Evolution of Human Sexuality. New York: Oxford University Press.Google Scholar
Taylor, C.L. and Hudson, M.C. (1972). World Handbook of Political and Social Indicators. New Haven, CT: Yale University Press.Google Scholar
Tooby, J. and Cosmides, L. (1988). “The Evolution of War and Its Cognitive Foundations.” Institute for Evolutionary Studies, Technical Report #88–1.Google Scholar
Townsend, J.M. (1989). “Mate Selection Criteria: A Pilot Study.” Ethology and Sociobiology 10: 241–53.Google Scholar
Trivers, R.L. (1972). “Parental Investment and Sexual Selection.” In Campbell, B. (ed.), Sexual Selection and the Descent of Man. Chicago: Aldine.Google Scholar
United Nations. Demographic Yearbook 1965–1986. New York: United Nations Publications.Google Scholar
United Nations. Demographic Yearbook 1986. New York: United Nations Publications.Google Scholar
United States Census Bureau: International Data Base (IDB) [online]. Available athttp://www.census.gov/ftp/ipc/www/idbnew.html.Google Scholar
van der Dennen, J.M.G. (1995). The Origin of War: The Evolution of Male-Coalitional Reproductive Strategy. Groningen, Netherlands: Origin Press.Google Scholar
Vayda, A.P. (1976). War in Ecological Perspective. New York: Plenum Publishing.Google Scholar
Williams, G.C. (1966). Adaptation and Natural Selection: A Critique of Some Current Evolutionary Thought. Princeton, NJ: Princeton University Press.Google Scholar
Wilson, M. and Daly, M. (1985). “Competitiveness, Risk Taking, and Violence: The Young Male Syndrome.” Ethology and Sociobiology 6: 59–73.Google Scholar
Wright, Q. (1965). A Study of War. 2nd edition. Chicago: University of Chicago Press.Google Scholar