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Explore traditional and modern modes of speciation, focusing on reproductive isolation mechanisms and genetic processes in polytypic species. Learn about geographic isolation, parapatric and sympatric speciation, and genetic changes driving evolutionary divergence.
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Modes of Speciation Traditional classification is by degree of geographic separation. How does reproductive isolation develop in a polytypic species? RIMS = Reproductive Isolating Mechanisms arise fortuitously, epistatically SRMS = Species Recognition Mechanisms arise by natural selection Modern classification emphasizes population genetic processes involved. What genetic changes occur during speciation?