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Lecture 022 - From Micro To Macro - Species and Speciation

Lecture 022 - From Micro To Macro - Species and Speciation...

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1 Bio1222 From micro to macro: speciation From micro to macro: speciation Defining species: species concepts morphological biological phylogenetic Speciation isolation divergence secondary contact Bio1222 Defining species: species concepts Defining species: species concepts Why does it matter whether two populations are one species or two? fundamental units of evolution legal protection
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2 Bio1222 Morphological species concept Morphological species concept identify species by morphological similarity (colour, size, shape etc) occupy distinct clusters in phenotypic space Bio1222 Problems with this species concept Problems with this species concept phenotypic variation within a population phenotypic similarity between populations doesn’t explain why members of same species are similar
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3 Bio1222 Biological species concept