Consideration of changes in allele frequencies as a function of time, with emphasis particularly on the impact of natural selection.
Just as Darwinism can be viewed primarily as an evolutionary perspective on biology,one that emphases the impact of natural selection on that evolution, the more or less equivalent idea of Darwinian evolution can be similarly viewed. The importance of this term, as a consequence, is perhaps best appreciated with regard to what is not Darwinian evolution, that is, what is known instead as non-Darwinian evolution.
Darwinian evolution in particular is adaptive and was an important emphasis of the Modern Synthesis. Only later was substantial emphasis placed instead on non-Darwinian evolution, particularly in terms of the neutral theory of molecular evolution.
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