Abstract
This article examines birth seasonality in two environmentally and ethnographically distinct societies: the Copper Inuit of the Central Canadian Arctic and the Samukundi Abelam of Papua New Guinea. Although the regions inhabited by these societies differ dramatically in degrees of seasonal variation, both populations display significant seasonality in conceptions and births. For the Copper Inuit, such seasonal variation was found to be the consequence of social and economic responses to extreme environmental change. Birth seasonality for the Samukundi Abelam is also pronounced and was determined to be the result of social ideologies which are only indirectly linked to environmental factors. The article also proposes a research paradigm designed to facilitate the cross-cultural investigation of birth seasonality in human populations.
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References
Aschoff, J. (1960). Exogenous and endogenous components of circadian rhythms.Cold Spring Harbor Symposia on Quantitative Biology 25: 11–18.
Aschoff, J. (1965). Circadian rhythms in man.Science 148: 1427–1432.
Birket-Smith, K. (1928). The Greenlanders of the present day.Greenland II: 1–207.
Bunning, E. (1967).The Physiological Clock. Springer-Verlag, New York.
Chang, K. S. F., Chan, S. T., Low, W. D., and Ng, C. K. (1963). Climate and conception rates in Hong Kong.Human Biology 35: 366–376.
Chappie, E. (1970).Culture and Biological Man: Explorations in Behavioral Anthropology, Holt, Rinehart, and Winston, New York.
Clayton, D. L., and Paietta, J. V. (1972). Selection for circadian eclosion time inDrosophila melanogaster.Science 178: 994–995.
Colquhoun, W. P. (ed.) (1971).Biological Rhythms and Human Performance. Academic Press, New York.
Condon, R. G. (1981). Inuit behavior and seasonal change: A study of behavioral ecology in the Central Canadian Arctic. PhD dissertation, University of Pittsburgh.
Cooper, Z. (1939). Mitotic rhythm in human epidermis.Journal of Investigative Dermatology 2: 289–300.
Cowgill, U. (1966a). The season of birth in man: The northern New World.Kroeber Anthropological Society Paper 35: 1–21.
Cowgill, U. (1966b). Historical study of the season of birth in the city of York, England.Nature 209: 1967.
Engle, E. T., and Shelesnyak, M. C. (1934). First menstruation and subsequent menstrual cycles of pubertal girls.Human Biology 6: 431–543.
Forge, J. A. W. (1966). Art and environment in the Sepik.Proceedings of the Royal Anthropological Institute 1965, pp. 23–31.
Frisch, R. E. (1978). Population, food intake, and fertility.Science 199: 22–30.
Hulme, H. B. (1951). Effect of semistarvation and human semen.Fertility and Sterility 2: 466–471.
James, W. H. (1971). Social class and season of birth.Journal of Biosocial Science 3: 309–320.
Jenness, D. (1922).The Life of the Copper Eskimos. Report of the Canadian Arctic Expedition, 1913–1918, Vol. XII, part A. Acland, King's Printer, Ottawa.
Johnson, J. T., Ann, T. B., and Palan, V. T. (1975). Seasonality of births for West Malaysia's two main racial groups.Human Biology 47: 295–307.
Jores, A., and Frees, J. (1937). Die tagesschwankungen der Schmerzempfindung.Deutsche Medizinische Wochenschrift 63: 962–963.
Kirk, D. (1960). The influence of business cycles on marriage and birth rates. InDemographic and Economic Change in Developed Countires. Proceedings presented at the National Bureau Committee for Economic Research, Special Conference Series, No. 11. Princeton University Press, pp. 241–260.
Kleitman, N. (1933). Diurnal variation in performance.American Journal of Physiology 104: 449–456.
Kleitman, N. (1963).Sleep and Wakefulness. University of Chicago Press, Chicago.
Kleitman, N., and Ramsaroop, A. (1948). Periodicity in body temperature and heat rate.Endocrinology 43: 1–20.
Lea, D. A. M. (1964).Abelam land and sustenance. PhD dissertation, The Australian National University, Canberra.Wochenschrift 63: 962–963.
Lea, D. A. M. (1969). Some non-nutritive functions of food in New Guinea. In Gale, F., and Lawton, G. H. (eds.),Settlement and Encounter: Geographic Studies Presented to Sir Grenfell Price, Oxford University Press, London, pp. 173–182.
Llewellyn, J. (1932). Light and sexual periodicity.Nature 129: 868.
Luce, G. (1970).Biological Rhythms in Psychiatry and Medicine. National Institute of Mental Health, Maryland.
Malina, R. M., and Himes, J. H. (1977). Seasonality of births in a rural Zapotec municipio, 1945–1970.Human Biology 49: 125–137.
McDonald, R. L. (1966). Lunar and seasonal variations in obstetric factors.Journal of Genetic Psychology 108: 81–87.
Mills, J. N. (ed.) (1973).Biological Aspects of Circadian Rhythms. Plenum Press, New York.
Mosher, S. W. (1979). Birth seasonality among peasant cultivators: The interrelationship of workload, diet, and fertility.Human Ecology 7: 151–181.
Nurge, E. (1970). Birth rate and work load.American Anthropologist 72: 1434–1439.
Ogun, G. E. O., and Okorafor, A. E. (1979). Seasonality of births in Southeastern Nigeria.Journal of Biosocial Science 11: 209–217.
Palmer, J. D. (1976).An Introduction to Biological Rhythms. Academic Press, New York.
Parkes, A. A. (1968). Seasonal variation in human sexual activity. In Thoday, J. M., and Parkes, A. S. (eds.),Genetic and Environmental Influence on Behavior, Oliver and Boyd, Edinburgh.
Pasamanick, B., Dinitz, S., and Knobloch, H. (1959). Geographic and seasonal variations in births.Public Health Reports 74: 285–288.
Pasamanick, B., Dinitz, S., and Knobloch, H. (1960). Socio-economic and seasonal variations in birth rates.Milbank Memorial Fund Quarterly 38: 248–254.
Pasternak, B. (1976). Seasonality in childbirth and marriage: A Chinese case.Bulletin of the Institute of Ethnology, Academia Sinica 41: 25–45.
Pasternak, B. (1978). Seasons of birth and marriage in two Chinese localities.Human Ecology 6(3): 299–323.
Pengelley, I. (ed.) (1974).Circannual Rhythms: Annual Biological Rhythms, Academic Press, New York.
Pfaff, D. (1968). Effects of temperature and time of day on time judgments.Journal of Experimental Psychology 76: 419–422.
Quetelet, L. A. J. (1826). Memoire sur les lois des naissance et de la mortalitie a Bruxelles.Nouveau Memoires de l'Academie Royale des Sciences et Belles Lettres de Bruxelles 3: 495–512.
Reinberg, A. (1973). Biological rhythms and energy balance in man. In Apfelbaum, C. (ed.),Energy Balance in Man, Masson, Paris.
Roberts, D. F. (1976). Environment and the fetus. InBiology of Human Fetal Growth, Roberts, D. F., and Thomson, A. M. (eds.), Taylor and Francis, London.
Rosenberg, H. M. (1966).Seasonal Variations in Births. National Center for Health Statistics, Series 21, 9, U. S. Government Printing Office, Washington, D.C.
Scaglion, R. (1976). Seasonal patterns in Western Abelam conflict management practices. PhD dissertation, University of Pittsburgh.
Scaglion, R. (1978). Seasonal births in a Western Abelam village, Papua New Guinea.Human Biology 50: 313–323.
Scaglion, R., and Condon, R. G. (1979). Abelam yam beliefs and sociorhythmicity: A study in chronoanthropology.Journal of Biosocial Science 11: 17–25.
Siegel, S. (1956).Nonparametric Statistics for the Behavioral Sciences. McGraw-Hill, New York.
Siffre, M. (1964).Beyond Time. McGraw-Hill, New York.
Smolensky, M., Halberg, F., and Sargent, F., II (1972). Chronobiology of the life sequence. In Itoh, S., Ogata, K., and Yoshimura, H. (eds.),Advances in Climatic Physiology, Igaku Shoim, Tokyo, pp. 281–318.
Spencer, B., and Hum, D. (1977). Workload and seasonal variation in birthrates reconsidered.American Anthropologist 79: 911–912.
Stoeckel, J., and Choudhury, A. K. M. A. (1972). Seasonal variations in births in rural East Pakistan.Journal of Biosocial Science 4: 107–116.
Takahashi, E. (1964). Seasonal variation of conception and suicide.Tohoku Journal of Experimental Medicine 84: 215–227.
Thompson, R. W., and Robbins, M. (1973). Seasonal variation in conception in rural Uganda and Mexico.American Anthropologist 75: 676–686.
Tuzin, D. (1972). Yam symbolism in the Sepik: An interpretative account.Southwestern Journal of Anthropology 28: 230–254.
Tuzin, D. (1976).The Ilahita Arapesh: Dimensions of Unity. University of California Press, Berkeley.
Tuzin, D. (1980).The Voice of the Tambaran: Truth and Illusion in Ilahita Arapesh Religion. University of California Press, Berkeley.
Weyer, E. M. (1932).The Eskimos. Yale University Press, New Haven.
Whiteman, J. (1965a). A study of the dietary habits of a North wosera village in the Territory of Papua-New Guinea.Food and Nutrition Notes and Reviews 22: 67–74.
Whiteman, J. (1965). Change and tradition in an Abelam village.Oceania 36: 102–120.
Wilson, R., Newman, E., and Newman, H. (1956). Diurnal variation in rate of alcohol metabolism.Journal of Applied Physiology 8: 556–558.
Zelnik, M. (1969). Socioeconomic and seasonal variations in births: A replication.Milbank Memorial Fund Quarterly 47: 159–165.
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Condon, R.G., Scaglion, R. The ecology of human birth seasonally. Hum Ecol 10, 495–511 (1982). https://doi.org/10.1007/BF01531169
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DOI: https://doi.org/10.1007/BF01531169