Complex causal relationships occur between population dynamics and a change in a population genetic structure. In our study, a simple model was used to show that the evolutionary process of density-independent natural selection depending on the fitnesses determined by a single diallelic locus can lead to a change in population growth parameters, thus changing the dynamic modes in a population. Possible mechanisms and direction of these changes are discussed. The results clearly demonstrate that the evolutionary change in allele frequencies, accompanied by an increase in the average fitness of the population, may result in the occurrence of cyclic, quasiperiodic, and chaotic modes of population dynamics. The effects observed in our models are largely due to the simple combination (superposition) of the two models: natural selection leads to an evolutionary increase in fitness, and density regulation with an increase in reproductive potential leads to bifurcations that provide various fluctuations in population abundance. However, these fluctuations occur (and manifest themselves) in the course of genetic evolution. At the same time, the combination of models leads to the occurrence of new dynamic modes that are not observed in each of the models separately (i.e., fluctuations in gene frequencies associated with the multimodality of the considered systems and the emergence of new stable attractors).

中文翻译：

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种群生物物理学中的生态和遗传模型

种群动态与种群遗传结构的变化之间存在复杂的因果关系。在我们的研究中，一个简单的模型被用来表明密度独立的自然选择的进化过程取决于由单个二等位基因座决定的适应度，可以导致种群增长参数的变化，从而改变种群的动态模式。讨论了这些变化的可能机制和方向。结果清楚地表明，等位基因频率的进化变化伴随着种群平均适应度的增加，可能导致种群动态出现周期性、准周期性和混沌模式。在我们的模型中观察到的效果主要是由于两个模型的简单组合（叠加）：自然选择导致适应度的进化增加，随着繁殖潜力的增加，密度调节导致分叉，从而提供种群丰度的各种波动。然而，这些波动在基因进化过程中发生（并表现出来）。同时，模型的组合导致出现在每个模型中都没有单独观察到的新动态模式（即，与所考虑系统的多模态相关的基因频率波动和新的稳定吸引子的出现） . 这些波动在基因进化过程中发生（并表现出来）。同时，模型的组合导致出现在每个模型中都没有单独观察到的新动态模式（即，与所考虑系统的多模态相关的基因频率波动和新的稳定吸引子的出现） . 这些波动在基因进化过程中发生（并表现出来）。同时，模型的组合导致出现在每个模型中都没有单独观察到的新动态模式（即，与所考虑系统的多模态相关的基因频率波动和新的稳定吸引子的出现） .