Lect32_Life_Biogeography_2013_NKW

Map gene trees among populations onto geographic

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Unformatted text preview: Dispersal ability varies greatly (e.g., bats only mammals [email protected] to New Zealand and Hawaii) •  Vicariance –  Disjunct pacerns = from changes imposed on originally [email protected] [email protected] (e.g., changes in [email protected] of land, by [email protected] or tectonic shies, mountain ­building, river capture etc.) –  E.g. Gondwanaland breakup  ­ explain [email protected] of ancient groups like [email protected] and marsupials Dispersal- Range Expansion – European Starling – 100 NYC 1896 90 NYC 1890, 80 more in 1891 Vicariance – Saxifrage w/ relic populations “When he lies asleep, And in his ear I’ll holla ‘Mortimer!’ Nay, I’ll have a starling shall be taught to speak Nothing but ‘Mortimer,’ and give it him, To keep his anger still in motion.” [1st Henry IV – I, 3] 15 4/9/13 Phylogenetic relationships as indicators of biogeographic history (Fig 6.9) Dispersal vs Vicariance A.  Dispersal A to B B.  Vicariance Paraphyly C.  Vicariance w/ speciation and extinction Complications: 1)  AREA CLADOGRAMS: Extinction in C 2)  Speciation...
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This note was uploaded on 02/02/2014 for the course ECOL 335 taught by Professor Reinthal during the Spring '10 term at Arizona.

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