Module 11 Blog Post

Speciation is something that comes usually from a buildup of mutations between at least a couple of generations. Since separate species have to have exclusive mating within their populations, it takes a lot of gradual buildup of mutations to branch off from one species to another. It especially would take even longer for the change in mutations to be so great that even when living in the same geographic area, they still managed to diverge into different species. I can see however that in the case of allopatric speciation, how it could happen faster than sympatric. Since the two groups would be in different environments, similar to what we see in Darwin's finches, it is more likely we would begin to see different mutations between the different groups. Obviously it takes a lot more mutations than that to create a whole new species, but it's essentially the same mechanism. Of course, it does depend on the species and the overall mutations rate of the organism. Every species is different, so every speciation is different!

Comments

  1. Megan McCoyNovember 30, 2021 at 9:44 AM

    Hey Jenna! I really enjoyed your blog post as I also had similar content in mine. I liked how you tied in the case of allopatric and sympatric speciation in. It helped me understand better.

    ReplyDelete

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