Postzygotic Isolation

I’ve found that I remember what I read better if I use this blog for note taking and then observations on what I’ve read. I’ll most likely use this approach for the remainder of this course unless there are objections. My thoughts on the reading will be in italics.
Notes!
Classification of postzygotic reproductive isolating [...]

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Behavioral and Nonecological Isolation

Behavioral Isolation: may be more of a species identification mechanism?
Mechanical Isolation: square peg, round hole. It just doesn’t work.
Gametic Isolation: sperm competition / inactivation in heterospecific genital tract, and / or incompatible binding proteins on gamete surfaces. — I wondered how that worked.

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Ecological Isolation

Habitat Isolation: often a direct byproduct of adaptation to the environment. Seems based on relatively few genes. “Habitat” can include host preference in addition to soil type preference and other habitats.
Pollinator Isolation: gene flow between flowering plants is reduced if the species use different pollinators. Strong dependence on a particular [...]

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