Biogeography & Phylogeography Brian O’Meara EEB464 Fall 2013 atch?v=T1-cES1Ekto.

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Presentation transcript:

Biogeography & Phylogeography Brian O’Meara EEB464 Fall atch?v=T1-cES1Ekto

Continental drift Dispersal and vicariance Major biogeographic events Phylogeography Perils of methods Uses of phylogeography

1912: Alfred Wegener proposes continental drift, Pangaea “Reaction to Wegener's theory was almost uniformly hostile, and often exceptionally harsh and scathing.... Part of the problem was that Wegener had no convincing mechanism for how the continents might move.... Another problem was that flaws in Wegener's original data caused him to make some incorrect and outlandish predictions.... Wegener's theory found more scattered support after his death, but the majority of geologists continued to believe in static continents and land bridges.” Patterns of preserved geomagnetism found in the 1950s and 1960s provided evidence that this was right

Ronquist. Dispersal-vicariance analysis: A new approach to the quantification of historical biogeography. Syst Biol (1997) vol. 46 (1) pp

Late Triassic (220Ma) Dr. Ron Blakey

Early Jurassic (200 MYA) Dr. Ron Blakey

Early Cretaceous (120 MYA) Dr. Ron Blakey

KT boundary (65 MYA) Dr. Ron Blakey Asteroid image from David Hardy

Chris Jin

Great American Biotic Interchange (~2.7 MYA)

The Smithsonian Institution/Carl Hansen and Nancy Knowlton

Figures from Island Biogeography: MacArthur & Wilson

Maximilian Dörrbecker

The Late Pleistocene Dispersal of Modern Humans in the Americas Ted Goebel, et al. Science 319, 1497 (2008)

Avise et al. (1987)

Templeton et al. (1995)

Knowles and Maddison (2002)

Knowles (2009)

Lemmon & Lemmon (2008)

Tsutsui et al. (2001) Photo ©Alex Wild, Myrmecos.net ©Alex Wild