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A Quantitative Model of the Simpson-Baldwin Effect

机译:辛普森-鲍德温效应的定量模型。

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G. G. Simpson was the first to explain the Baldwin effect completely in terms of the theory of natural selection. A genetic version of a seemingly non-hereditary adaption may arise when the natural selection acts on the likelihood of having an adaptive trait not just on the trait itself. We present a quantitative model of the Simpson-Baldwin Effect. Organisms in the model have mutable ranges of phenotypic plasticity. The distribution of phenotypes in a population depends largely on the extent of environmental stochasticity. When the environment undergoes intermediate rates of fluctuation, the Simpson-Baldwin effect arises through the interaction of natural selection and mutation on norms of reaction. In a highly volatile environment, organisms benefit from plasticity, and consequently do not experience a Simpson-Baldwin channelling of phenotypic possibility.
机译:G. G. Simpson是第一个根据自然选择理论完全解释鲍德温效应的人。当自然选择作用于具有适应性状的可能性而不仅是性状本身时,就可能出现看似非遗传性适应的遗传形式。我们提出了辛普森-鲍德温效应的定量模型。该模型中的生物具有可变的表型可塑性范围。表型在人群中的分布在很大程度上取决于环境随机性的程度。当环境经历中等程度的波动时,辛普森-鲍德温效应会通过自然选择和突变对反应规范的相互作用而产生。在高度易变的环境中,生物受益于可塑性,因此不会经历Simpson-Baldwin引导表型的可能性。

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