Information on the sex, age, and ethnic compositions; reproductive parameters; intensity of natural selection (Crow's indices); and surname diversity of three rural populations (the Byadi, Dyupsya, and Cheriktey villages) of the Ust-Aldan ulus (district) of Sakha Republic (Yakutia) has been analyzed. The rural Yakut population of the Ust-Aldan ulus is demographically young (the mean age 25–31 years) and characterized by low outbreeding, unfavorable sex ratio in both prereproductive and reproductive ages, and high fertility (3.58–5.45 children surviving until the reproductive age per woman that has completed the reproductive period), although the actual reproductively active period is shorter than half its physiological duration. In the structure of index of total selection, the differential-fertility component is considerably greater than the differential-mortality component (I tot = 0.625, I m = 0.093, and I f = 0.487). In the villages studied, some surnames are accumulated (45–65% of the population have five most frequent surnames), which determines the low surname diversity (α = 11.62–25.19) and high random isonymy (I r= 0.0391–0.0823).
Russian Journal of Genetics – Springer Journals
Published: Oct 18, 2004
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