Comparative Study of Reproductive Parameters among Ethnoterritorial Groups of Siberian Tatars

Abstract

Introduction. The reproductive parameters of the Tatar population of Siberia were studied, specifically: the Siberian Tatars, the Siberian Bukharans, and the Kolyon Tatars. A comparative analysis was conducted using a unified set of indicators to assess differences among these groups, and in relation to the Volga-Ural Tatars. The results are interpreted within the context of analyzing contribution of biological and non-biological factors to reproductive processes.

Materials and methods. The study encompassed seven ethno-territorial subgroups of the Tobol-Irtysh, Baraba, and Tomsk Siberian Tatars; the Bukharan Tatars, residing compactly in the Tyumen and Omsk regions; and the Kolyon Tatars, descendants of migrants from the Volga region. A total of 667 questionnaires filled out by women over the age of 45 were analyzed; the study examined age-related parameters and vital statistics, including the number of pregnancies and their outcomes.

Results and Discussion. The average number of children surviving to reproductive age enabled the classification of the reproductive type as expanded among the Tobol-Irtysh and Baraba Siberian Tatars, and simple among the Bukharan Tatars, Kolyon Tatars, and Tomsk Siberian Tatars. The ethnoterritorial subgroups of Tobol–Irtysh Siberian Tatars exhibited the lowest rate of prenatal losses compared with other Siberian Tatar groups – the Baraba, Tomsk, and Siberian Bukharan Tatars. The primary contributor to the structure of prenatal losses among the Siberian Tatars comes from medical abortions, with the highest average number observed among the Tomsk Tatars and Siberian Bukharan Tatars.

The Crow index and its components were as follows: for the Siberian Tatars – I_m = 0.040, I_f = 0.355, I_tot = 0.409; for the Bukharan Tatars – I_m = 0.013, I_f = 0.242, I_tot = 0.258; and for the Kolyon Tatars – I_m = 0.038, I_f = 0.184, I_tot = 0.229. And within the ethnoterritorial groups of the Siberian Tatars: Tobol-Irtysh Tatars: I_m = 0.031, I_f = 0.372, I_tot = 0.414; Baraba (Baraba-Turash) Tatars: I_m = 0.037, I_f = 0.327, I_tot = 0.377; Tomsk Tatars: I_m = 0.091, I_f = 0.303, I_tot = 0.421.

Conclusions. The analysis of the obtained data on the reproductive parameters of the Siberian Tatars revealed that, during the studied time period, reproductive processes in the Tatar population of the Siberian region are predominantly determined by non-biological factors. In the studied populations, a low level of natural selection pressure, operating through differential fertility, was observed. © 2025. This work is licensed under a CC BY 4.0 license.

References

Borovikov V.P. STATISTIKA. The Art of Data Analysis on a Computer: for Professionals. SPb., Piter Publ., 2003. 502 p. (In Russ.).

Borovikov V.P. A popular introduction to modern data analysis and machine learning on STATISTICA. M., Hotline – Telecom Publ., 2024. 354 p. (In Russ.).

Garifullin I.B. Social and demographic development of the Tatar population of the Tyumen region during the years of development of the North (1960-1996). Tyumen, 1997. pp. 11–13. (In Russ.).

El'chinova G.I., Zinchenko R.A., Osipova Ye.V. Methods of processing population genetic data: demographic questionnaires. Medical Genetics, 2004, 3 (7), pp. 313–320. (In Russ.).

El'chinova G.I., Shishko A.N., Zinchenko R.A. Crow index and reproductive characteristics of the population of Tatarstan. Genetics, 2012a, 48 (7), pp. 872–879. (In Russ.).

El'chinova G.I., Igumnov P.S., Zinchenko R.A., Ginter Ye.K. Medical and genetic study of the population of Tatarstan. Message 3. Population-genetic characteristics. Medical Genetics, 2012b, 9, pp. 41–48. (In Russ.).

El'chinova G.I., Zinchenko R.A. Reproductive characteristics of the Tatar population of Tatarstan. Moscow University Anthropology Bulletin [Vestnik Moskovskogo universiteta. Seriya XXIII. Antropologiya], 2014, 1, pp. 115–120. (In Russ.).

Zazulina M.R. Formation of life support systems for rural ethno-local communities in the context of modernization (on the example of ethno-local communities of Tatars in the Novosibirsk region). Respublica Literaria, 2020, 1, 2, pp. 120–132. (In Russ.). DOI: 10.47850/RL.2020.1.2.120-132.

Kildeev M.V. Rural Muslim Religiosity in the Context of Transformation of Russian Society. Izvestiya of Saratov University. Sociology. Politology, 2023, 23 (1). pp 51–56. (In Russ.). DOI 10.18500/1818-9601-2023-23-1-51-56.

Lavryashina M.B., Ul'yanova M.V., Tychinskikh Z.A. Reproduction of local groups of Baraba Siberian Tatars: genetic-demographic and population-genetic aspects. In: Social, economic, technological and ecological aspects of sustainable development of Russian regions. Collection of scientific articles of the All-Russian scientific conference dedicated to the 30th anniversary of the SSRC RAS and SSU. Sochinskiy nauchno-issledovatel'skiy tsentr RAN, 2018. pp. 140–148. (In Russ.).

Lavryashina M.B., Ul'yanova M.V., Tychinskikh Z.A., Poddubikov V.V., Padyukova A.D. et al. Interim results of monitoring rural populations of Siberian Tatars: interethnic contacts, reproduction, gene pool. In Cultural heritage of the peoples of Western Siberia: Siberian Tatars. Collection of materials of the All-Russian symposium. Tobol'sk: Tobol'skaya tipografiya [Tobolsk: Tobolsk Printing House], 2019, pp.85–93. (In Russ.).

Lavryashina M.B., Ul'yanova M.V., Poddubikov V.V., Tychinskikh Z.A., Imekina D.O. Ethnodemography and spatial context: features of reproduction of populations of the ethnic core and periphery (on the example of Siberian Tatars). Proceedings of the Subtropical Scientific Centre of the Russian Academy of Sciences. Sochi: FRC SSC RAS Publ., 2024, 4 (1), pp. 81–95. (In Russ.).

Puzyrev V.P., Erdyniyeva L.S., Kucher A.N., Nazarenko L.P. Genetic and epidemiological study of the population of Tuva. Tomsk, STT Publ., 1999. 256 p.

Sakevich V.I., Denisov B., Nikitina S.YU. Termination of pregnancy in Russia according to official statistics. Sociological research, 2021, 9, pp. 42–53. (In Russ.). DOI 10.31857/S013216250014958-6.

Ulyanova M.V., Lavryashina M.B., Druzhinin V.G., Tychinskikh Z.A., Dolinina D.O. Сomparative evaluation of indigenous ethnic groups of Siberia reproduction parameters. Bulletin of Kemerovo State University, 2014, 3 (59), pp. 30–33. (In Russ.).

Ul'yanova M.V. Lavryashina M.B., Poddubikov V.V., Zazulina M.R., Osipov K.I. s soavt. Results of a comprehensive study of population reproduction processes in local groups of Tobol-Irtysh Siberian Tatars in the Tyumen region: genetic and demographic aspects. Bulletin of the Kemerovo State University, 2015, 1 (61), pp. 36–43. (In Russ.).

Yarnykh E.A., Barmina A.F. Fertility and reproductive beh * avior: global, all-Russian and regional trends and factors. Horizons of humanitarian knowledge, 2021, 6, pp. 34–43. (In Russ.). DOI: 10.17805/ggz.2021.6.5.

Crow J.F. Some possibilities for measuring selection intensities in man. Hum. Biol., 1958, 30. pp. 1–13.