EFFECTS OF MAXIMAL POSSIBLE POTENTIAL SEL ECTION IN WORLD-POPULATION - NEW DATA ON SELECTION STRUCTURE IN THE CIS

New information on maximal possible potential selection and its compon ent values in some ethno-territorial groups in CIS was presented. The heterogeneity observed in the Crow's index and its components can be e xplained as a result of the differences in the social economic status of the groups studied and the influence of climate geographical factor s. The data gathered during the biodemographical study of 67 populatio ns allowed to detect regularities of the effects of selective factors in world population: non-random and discrete nature of considered popu lations distribution in the coordinate space of selection components a ssociated with differential mortality (I)(-) and differential fertilit y (I) was shown. Differentiation of three big aggregations of populati ons was shown: urbanized contemporary communities with low I values; s mall endogamous populations, mostly of hunters and gatherers; small to wns' populations and rural populations with balanced reproductive indi ces. Microevolutionary changes take place in the latter conglomerate e ven now, statistically subdividing it into two clusters. A proposition was made about the existence of ''ecological optimum'' for population s intermediate between advanced industrial communities and communities of hunters and gatherers, corresponding to the population size and th e nature and rate of population reproduction.