x_i' = x_i (f_i(x) - <f>): population frequency follows fitness-deviation from mean; basis of evolutionary-game-theory and ESS (Maynard Smith 1982); equivalent to Lotka-Volterra under transformation.
x_i' = x_i (f_i(x) - <f>): population frequency follows fitness-deviation from mean; basis of evolutionary-game-theory and ESS (Maynard Smith 1982); equivalent to Lotka-Volterra under transformation.