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Unit 2 – Island Biogeography

Unit 2 – Island Biogeography. Topic 2.3- Island Biogeography. Island biogeography- study of the species composition and species richness on islands. Aimed at establishing and explaining the factors that affect species diversity of a specific community. See notes

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Unit 2 – Island Biogeography

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  1. Unit 2 –Island Biogeography

  2. Topic 2.3- IslandBiogeography • Island biogeography- study ofthe species composition and species richness onislands. • Aimed at establishing and explainingthe factors that affect species diversity of a specificcommunity.

  3. Seenotes • Equilibrium theory of Island Biogeography- described thetheoretical relationship between immigration and extinction of a speciesto • islands, depending ontheir… • Size • Distance frommainland

  4. Example: Krakatoa Island (erupted 1883 & extinction of allflora/fauna) • After eruption, immigrationstartedand numbers of bird specieswere recorded • As theory predicted, the rate of increase in immigration by new species declined as more and more species colonized theisland. • So…letsthinkaboutit…wheredidthesebirdspeciescomefrom?

  5. Time toshowoff Please explain point 1, 2, 3 and 4 • Discuss with your buddy &present to class

  6. With your buddy… discuss the “blue box” above & be preparedto share with theclass • Your Answer:

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