BIOL 1000 Lecture Notes - Continental Drift, Chromosome, Sympatric Speciation
Document Summary
They can co-exist in the same area but they don"t interbreed( refer to image on importance of ring species. ) Species next to one another can interbreed but they can"t interbreed with opposite. They can reproduce hybrids but they don"t well because they are mediums( no camflauge ( blend in or mimicking ) Hydrids die sooner and can"t find mates. Can show us wat happened during speciation and how species have evolved. Matuation is acted on by ns and genetic d. 2 step process= pops become geographically separated. Evolutionary mechanisms tht work in both the popsbut will act differently on both the gens. Differences in ecolutionary differences mechanisms result in accumlation of genetic differences tht reproductively isolate the pops. Gene flow is not a operating mechanism. Slow geographical events eventually produce larger geographic barrier. Small pops move into new location= geographical separarted from main pop. Not all barriers are equal( grand canyon )
