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The trade effects on both genetic variety and dynamic behavior of mendelian limited population

The consequences of trade with constant quota in the model of density-depended natural selection are considered. It is shown that optimal trade can preserve genetic variety as well as eliminate existing one. I. INTRODUCTION Now it is impossible to represent an analysis of number dynamics of majority biological species without taking into account the anthropogenic influence on these species. The trade is one example of such anthropogenic influence. To optimize the trade process, it is necessary to determine the catch rate, which allows both the maximum profit and the population surviving. How will change the genetic structure of population under the trade, is the question of special interest. At first sight this question might seems as a trivial one. Really, if equal part from each population genotype is excluded, then population genetic structure hasn't to change. But this seeming evident conclusion is absolutely incorrect in that case, when the population is under the influence of density-dependent natural selection and not all of the genotypes have equal adaptations to density limitation.