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Download Speciation Focus Questions 1. Summarize the key differences
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SpeciationFocusQuestions 1. Summarizethekeydifferencesbetweenallopatricandsympatricspeciation. Whichtypeofspeciationismorecommon,andwhy? 2. Describetwomechanismsthatcandecreasegeneflowinsympatric populations,therebymakingsympatricspeciationmorelikely. 3. Identify,explainandgiveallexamplesoftheprezygoticbarriers. 4. Identify,explainandgiveallexamplesofthepostzygoticbarriers. 5. Supposeyouarestudyingtwobirdspeciesthatliveinaforestandarenot knowntointerbreed.Onespeciesfeedsandmatesinthetreetopsandthe otherontheground.Butincaptivity,thebirdscaninterbreedandproduce viable,fertileoffspring.Whattypeofreproductivebarriermostlikelykeeps thesespeciesseparateinnature?Explain. 6. Whatarehybridzones,andwhycantheybeviewedas“naturallaboratories” inwhichtostudyspeciation? 7. Compareandcontrastthemodelsatwhichthepaceofspeciationcanoccur. Whichismorelikely?
