EEB 390 Lecture Notes - Lecture 12: Sympatric Speciation, Ecological Speciation, Paraphyly

• School: U of M
• Department: Ecology and Evolutionary Biology
• Course: EEB 390
• Professor: Jeff Smith

Document Summary

Is this a pre or post zygotic barrier: pre, post, don"t know, have two beetle species that look vary similar, but have different copulatory pieces that allow it to not mate. 1: result of uctuations climate and ecological driven speciation in operate areas (allographic) Sympatric speciation: process of speciation where diverging populations are not geographically separated. Lake 2: two lakes with green sh and brown sh, green lives at top brown lives at bottom, each has a green and brown species. Option 1) evolution of green sh in lake one evolution of brown sh in lake two: then there was a dispersal where you have both green and brown sh (allopatric and then dispersal) Option 2) within lake 1 and within lake 2 there was ancestral population: speculation within lake 1 and speculation within lake 2 into greens and brown, convergent not homologous.