[Genetic-demographic processes in the Moscow population in the mid 1990's. Analysis of ethnogeographic migration parameters (isolation by distance)].

Geographic parameters of migration were analyzed on the basis of data on birthplaces of individuals who contracted marriages in Moscow 1955, 1980, and 1994 to 1995. It was shown that the relationship between the migration rate and distance significantly changed in the 1990s. Investigation of ethnic composition of migrants demonstrated that an increase of migration activity of residents of Transcaucasia and North Caucasus recorded in 1990s was associated with an increase in migration to Moscow of representatives of indigenous populations of these regions rather than with repatriation of Russians. Analysis of migration with the use of the Malecot's model of isolation by distance showed that genetically effective migration accounted for 1/7, 1/3, and 1/4 of the total marital migration rate in 1995, 1980, and 1990, respectively. An increase in mean migration distance in 1995 to 1980 is explained mainly by a decrease in the proportion of short-range migration. The level of isolation by distance was extremely low and showed a trend to further decrease during the 40-year time interval. Parameters of the model indicated that at present the population of the central part of the Moscow oblast in the 80-km zone from the city center should be assigned to the Moscow population.