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GEOSPATIAL ASSESSMENT BASED ON FERTILITY AND MORTALITY DIFFERENTIAL INDICES OF NATURAL SELECTION IN NORTH-WEST AND EASTERN HIMALAYAN POPULATIONS

Published online by Cambridge University Press:  20 December 2016

Krishan Sharma
Krishan Sharma*
Affiliation:
Department of Anthropology, Panjab University, Chandigarh, India
*
1 Corresponding author. Email: [email protected]
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Summary

There is contradictory evidence of having fewer live births and higher embryonic mortality among high-altitude populations than their counterparts at lower altitude. This study explores the geospatial differences in selection intensities among human populations living in different ecological settings. Reproductive data from post-menopausal women were collected from 75 women from near Shimla, Himachal Pradesh, at an altitude of 2150 m above sea level and 100 women from Jind, Haryana, at an altitude of 227 m. Secondary data were taken from 85 women from the Kinnaur district of Himachal Pradesh at an average altitude of 3420 m. A comparison of the study data was made with similar data from different populations living in the western and eastern Himalayas. The total selection intensity index based on Johnston and Kensinger’s index was highest in Shimla and lowest in Kinnaur. The fertility selection component was highest in Shimla and lowest in Kinnaur. The prenatal mortality contribution to the total selection was highest in Shimla (30.76%) and lowest in Kinnaur (2.14%), while the contributions of normalized postnatal mortality were 16.39% and 57.80% in Shimla and Kinnaur, respectively. The fertility component of selection was higher than the mortality component in Shimla, while in the other two places the reverse was observed. Hypoxic conditions at high altitude seem to have little effect on the fertility and embryonic mortality rates of indigenous people. The geospatial differences in the selection intensities may be due to differences in ethnic, behavioural ecology, environmental, cultural and socioeconomic factors.

Type
Research Article
Information
Journal of Biosocial Science , Volume 49 , Issue 6 , November 2017 , pp. 811 - 825
Copyright
Copyright © Cambridge University Press, 2016 

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References

Arnold, S. & Wade, M. J. (1984) On the measurement of natural and sexual selection – theory. Evolution 38, 709–719.CrossRefGoogle ScholarPubMed
Baker, P. T. & Dutt, J. S. (1972) Demographic variables as measures of biological adaptation: a case studies of high altitude human populations. In Harrison, G. A. & Boyce, A. J. (eds) The Structure of Human Populations. Clarendon Press, Oxford.Google Scholar
Bhasin, M. K. & Nag, S. (2002) Demography of the tribal groups of Rajasthan: 4. Selection intensity. Journal of Human Ecology 13, 141–146.CrossRefGoogle Scholar
Borgerhoff, M. M. (1998) The demographic transition: are we any closer to an evolutionary explanation? Trends in Ecology & Evolution 13, 266–270.Google Scholar
Buck, A. A., Sasaki, T. T., Anderson, R. I., Hitchcock, J. C. & Leigh, G. R. (1968) Health and Disease in Four Peruvian Villages: Contrasts in Epidemiology. Johns Hopkins University Press, Baltimore, MD.Google Scholar
Byars, S. G., Ewbank, D., Govindaraju, D. R. & Stearns, S. C. (2010) Natural selection in a contemporary human population. Proceedings of the National Academy of Sciences of the USA 107, 1787–1792.Google Scholar
Clegg, E. J. & Harrison, A. (1971) Reproduction in human high altitude populations. Hormones 2, 13–25.Google ScholarPubMed
Courtiol, A., Rickard, I. J., Lummaa, V., Prentice, A. M., Fulford, A. J. C. & Stearns, S. C. (2013) The demographic transition influences variance in fitness and selection on height and BMI in rural Gambia. Current Biology 23, 884–889.Google Scholar
Crow, J. F. (1958) Some possibilities of measuring selection intensities in man. Human Biology 30, 1–13.Google Scholar
Crow, J. F. (1966) The quality of people: human evolutionary changes. Bioscience 16, 863–867.Google Scholar
Crow, J. F. (1972) Some effects of relaxed selection and mutation. In De Grouchy, J., Ebling, F. J. & Henderson, I. W. (eds) Proceedings of the 4th International Congress of Human Genetics. Excerpta Medica, Amsterdam, pp. 6–11.Google Scholar
Cruz-Coke, R., Cristoffanini, A. P., Aspillaga, M. & Biancani, F. (1966) Evolutionary forces in human populations in an environmental gradient in Arica, Chile. Human Biology 38, 421–438.Google Scholar
Dutt, J. S. (1980) Altitude and fertility: the confounding effect of childhood mortality – a Bolivian example. Social Biology 2, 101–113.Google Scholar
Garruto, R. M. & Hoff, C. J. (1976) Genetic history and affinities. In Baker, P. T. & Little, M. A. (eds) Man in the Andes: A Multidisciplinary Study of High-Altitude Quechua. Dowden, Hutchinson and Ross, Stroudsburg, PA, pp. 98–114.Google Scholar
Gautam, R. K., Kapoor, A. K. & Kshatriya, G. K. (2009) Natural selection among Kinnaura of the Himalayan highland: a comparative analysis with other Indian and Himalayan populations. Indian Journal of Human Genetics 15, 125–136.CrossRefGoogle Scholar
Giussani, D. A., Salinas, C. E., Villena, M. & Blanco, C. E. (2007) The role of oxygen in prenatal growth: studies in the chick embryo. Journal of Physiology 585, 911–917.Google Scholar
Goldstein, M. C., Tsarong, P. & Beall, M. (1983) High altitude hypoxia, culture, and human fecundity/fertility: a comparative study. American Anthropologist 85, 28–49.Google Scholar
Gonzales, G. F. (2007) Peruvian contributions to the study on human reproduction at high altitude: from the chronicles of the Spanish conquest to the present. Respiratory Physiology and Neurobiology 158, 172–177.Google Scholar
Goodman, A., Koupil, I. & Lawson, D. W. (2012) Low fertility increases descendant socioeconomic position but reduces long-term fitness in a modern post-industrial society. Proceedings of the Royal Society Series B 279, 4342–4351.CrossRefGoogle Scholar
Gupta, R. (1980) Selection intensity in the Sherpa. Current Anthropology 21, 136–137.Google Scholar
Hill, S. E. & Reeve, H. K. (2005) Low fertility in humans as the evolutionary outcome of snowballing resource games. Behavioral Ecology 16, 398–402.Google Scholar
Hoff, C. J. & Abelson, A. E. (1976) Fertility. In Baker, P. T. & Little, M. A. (eds) Man in the Andes: A Multidisciplinary Study of High-Altitude Quechua. Dowden, Hutchinson and Ross, Stroudsburg, PA, pp. 128–146.Google Scholar
Johnston, F. E. & Kensinger, K. M. (1971) Fertility and mortality differentials and their implications for micro-evolutionary change among Cashinahua. Human Biology 43, 356–364.Google Scholar
Kaplan, H. (1996) A theory of fertility and parental investment in traditional and modern human societies. Yearbook of Physical Anthropology 39, 91–135.Google Scholar
Kaplan, H., Lancaster, J. B., Tucker, W. T. & Anderson, K. G. (2002) Evolutionary approach to below replacement fertility. American Journal of Human Biology 14, 233–256.Google Scholar
Kapoor, A. K., Singh, M. K., Kaur, J. & Sinha, R. (2011) Selection intensity among middle altitude caste populations of Himachal Pradesh, Western Himalayas. Indian Journal of Physical Anthropology and Human Genetics 30, 131–143.Google Scholar
Korpelainen, H. (2003) Human life histories and the demographic transition: a case study from Finland, 1870–1949. American Journal of Physical Anthropology 120, 384–390.Google Scholar
Lawson, D. W. & Mace, R. (2011) Parental investment and the optimization of human family size. Philosophical Transactions of the Royal Society Series B 366, 333–343.Google Scholar
Low, B. S. (2000) Why Sex Matters: A Darwinian Look at Human Behavior. Princeton University Press, Princeton.Google Scholar
Mace, R. (2007) The evolutionary ecology of human family size. In Dunbar, R. & Barrett, L. (eds) Oxford Handbook of Evolutionary Psychology. Oxford University Press, pp. 383–396.Google Scholar
Matsunaga, E. (1966) Possible genetic consequences of family planning. Journal of the American Medical Association 198, 533–540.Google Scholar
Milot, E. & Pelletier, F. (2013) Human evolution: new playgrounds for natural selection. Current Biology 23, R448.Google Scholar
Moorad, J. A. (2013) A demographic transition altered the strength of selection for fitness and age-specific survival and fertility in a 19th century American population. Evolution 67, 1622–1634.Google Scholar
Newson, L., Postmes, T., Lea, S. E. G. & Webley, P. (2005) Why are modern families small? Toward an evolutionary and cultural explanation for the demographic transition. Personality and Social Psychology Review 9, 360–375.Google Scholar
Niermeyer, S. (2013) Reproduction and growth. In Swenson, E. R. & Bärtsch, P. (eds) High Altitude: Human Adaptation to Hypoxia. Springer, New York, pp. 341–352.Google Scholar
Parraguez, V. H., Urquieta, B., Pérez, L., Castellaro, G., De los Reyes, M., Torres-Rovira, L. et al. (2013) Fertility in a high-altitude environment is compromised by luteal dysfunction: the relative roles of hypoxia and oxidative stress. Reproductive Biology and Endocrinology 11, 24.Google Scholar
Pawson, I. G. & Jest, C. (1978) The high-altitude areas of the world and their cultures. In Baker, P. T. (ed.) The Biology of High-Altitude Peoples. Cambridge University Press, pp. 17–45.Google Scholar
Reyes, J. G., Farias, J. G., Henríquez-Olavarrieta, S., Madrid, E., Parraga, M., Zepeda, A. B. & Moreno, R. D. (2012) The hypoxic testicle: physiology and pathophysiology. Oxidative Medicine and Cellular Longevity, Article ID 929285, doi: 10.1155/2012/929285 Google Scholar
Rotkirch, A. & Lummaa, V. (2012) Natural and sexual selection in a monogamous historical human population. Proceedings of the National Academy of Sciences of the USA 109, 8044–8049.Google Scholar
Sarkar, N. C. (1997) Opportunity for natural selection among the Muklom of Arunachal Pradesh. Current Anthropology 38, 140–143.Google Scholar
Sarma, M. (2013) Measuring opportunity for natural selection: adaptation among two linguistically cognate tribes inhabiting two eco-situations of North-East India. Indian Journal of Human Genetics 19, 159–164.Google Scholar
Terrenato, L., Ulizzi, L. & San Martini, A. (1979) The effects of demographic transition on the opportunity for selection: changes during the last century in Italy. Annals of Human Genetics 42, 391–399.Google Scholar
Ulizzi, L., San Martini, A. & Terranato, L. (1979) Changes in selection opportunities with changing environment, regional heterogeneity in Italy. Annals of Human Genetics 43, 137–141.Google Scholar
Vitzthum, V. J. & Wiley, A. S. (2003) The proximate determinants of fertility in populations exposed to chronic hypoxia. High Altitude Medical Biology 4, 125–139.Google Scholar