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Final presentation of my summer work at IIASA

Final presentation of my summer work at IIASA

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Iiasa final Iiasa final Presentation Transcript

  • The Evolutionary Seesaw: Origins of Biodiversity? Carl Boettiger UC Davis August 26, 2009Carl Boettiger, UC Davis The Evolutionary Seesaw 1/22
  • [ speciation ]Carl Boettiger, UC Davis The Evolutionary Seesaw 2/22
  • [ biodiversity ]Carl Boettiger, UC Davis The Evolutionary Seesaw 3/22
  • [ insects ]Carl Boettiger, UC Davis The Evolutionary Seesaw 4/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 5/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 6/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 7/22
  • The Evolutionary SeesawCarl Boettiger, UC Davis The Evolutionary Seesaw 8/22
  • 1.0 0.8 0.6 exp(-x^2) frequency 0.4 0.2 0.0 -2 seed size -1 0 1 2Carl Boettiger, UC Davis The Evolutionary Seesaw 9/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 10/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 11/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 12/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 13/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 14/22
  • Carl Boettiger, UC Davis The Evolutionary Seesaw 15/22
  • preference 1.0 0.8 0.6 exp(-x^2) frequency 0.4 0.2 0.0 -2 seed size -1 0 1 2Carl Boettiger, UC Davis The Evolutionary Seesaw 16/22
  • Pairwise Invasibility Plot 1.0 his position 0.5 1 * x 0.0 -0.5 -1.0 my position -1.0 -0.5 0.0 0.5 1.0 xCarl Boettiger, UC Davis The Evolutionary Seesaw 17/22
  • Adding coexistence times 0.2 1.0 his position 0.5 0.1 1 * x 0.0 0.0 -0.5 -0.1 -1.0 my position -0.1 0.0 0.1 0.2 -1.0 -0.5 0.0 0.5 1.0 xCarl Boettiger, UC Davis The Evolutionary Seesaw 18/22
  • Puzzles of biodiversity, or, why so many beetles? Understanding the control nobs of biodiversity Population size Mutation rate Competition strengthCarl Boettiger, UC Davis The Evolutionary Seesaw 19/22
  • Thanks! IIASA Ulf Dieckmann NAS Rupert Mazzucco UCD EEP Team CSGF, DoECarl Boettiger, UC Davis The Evolutionary Seesaw 20/22
  • Calculating coexistence times „ » –« z R 2A(x) R exp a dx B(x) Z x dy b dz y B(z) T (x) = 2 “R h i” (1) a y 2A(x) exp a dx B(x) "Energy" All A All BCarl Boettiger, UC Davis The Evolutionary Seesaw 21/22
  • Adding numerical data 0.1 y trait 0.0 -0.1 -0.2 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 x traitCarl Boettiger, UC Davis The Evolutionary Seesaw 22/22