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Why do organisms cooperate?

Why do organisms cooperate?. Relatedness. Dictyostelium. http://www.uni-koeln.de/uni/aktuell_meld_amoebe.html. Social insects. http://www.sbs.utexas.edu/pupating/termite_model.htm. Can cooperation evolve in the absence of relatedness?. The basic PD matrix.

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Why do organisms cooperate?

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  1. Why do organisms cooperate?

  2. Relatedness

  3. Dictyostelium http://www.uni-koeln.de/uni/aktuell_meld_amoebe.html

  4. Social insects http://www.sbs.utexas.edu/pupating/termite_model.htm

  5. Can cooperation evolve in the absence of relatedness?

  6. The basic PD matrix What I get from each possible outcome e.g. R = 0, S = -3, T = 2, P = -2 T > R > P > S

  7. Spatial prisoners’ dilemma http://prisonersdilemma.groenefee.nl/

  8. The super-rational strategy • an optimal strategy must be the same for both players • the result must lie on the diagonal of the payoff matrix • maximize return from solutions on the diagonal • cooperate

  9. The basic chicken matrix What I get from each possible outcome e.g. R = 0, S = -3, T = 2, P = -2 P < S, R < T

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