[4] - iii. hybrid breakdown II. What is a species? A. The...

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Lecture 4 – Origins of the Species II I. Reproductive Isolation A. Pre-zygotic barriers i. Premating a. Habitat isolation b. Temporal Isolation c. Behavioral Isolation ii. Postmating prezygotic a. mechanical isolation b. gametic isolation B. Post-zygotic barriers i. Reduced hybrid viability ii. reduced hybrid fertility
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Unformatted text preview: iii. hybrid breakdown II. What is a species? A. The biological species concept & associated problems B. Additional species concepts III. Patterns of speciation A. Allopatric versus sympatric B. Anagenesis versus cladogenesis IV. The pace of evolution A. Gradualism versus punctuated equilibrium...
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