Data from the Lugansk City Registry Office archives of 1960, 1985, 1990, and 2000 were used to calculate genetic demographic parameters characterizing marriage migration. The migration coefficients (m) in these years were 0.69, 0.54, 0.47, and 0.36; the endogamy indices were 12.1, 24.4, 30.5, and 43.2%, and the marriage contingency coefficients with respect to birthplace (K) were 0.12, 0.10, 0.11, and 0.13, respectively. The mean migration distance increased by a factor of 1.5 (from 599 to 870 km), and the mean parent-offspring distance decreased by a factor of 1.3 (from 415 to 317 km) during the period between 1960 and 2000. The mean marriage distance increased from 654 to 718 km between 1960 and 1985 and then decreased to 594 km by the year 2000. The proportion of “long-distance” migrations calculated using Malecot’s model increased from 0.013 to 0.021 between 1960 and 1990 and decreased to 0.005 by 2000. The proportion of “short-distance” migrations was 0.77 in 1960 and 0.51 in 2000. The migration efficiency increased from 0.09 to 0.18 between 1960 and 1990 and decreased to 0.07 by 2000. In the years studied, the indices of isolation by distance (b) were 0.0005, 0.0004, 0.0005, and 0.0002, and the population “radii” were 90, 118, 119, and 168 km, respectively.
Russian Journal of Genetics – Springer Journals
Published: Mar 20, 2007
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