Invasion profiles with different parameter values.

<p>These show that invasion speeds are the same when (i) morphs have asymmetrical mutation rates, (ii) there is non-neutral competition and (iii) morphs have asymmetrical mutation, non-neutral competition and different carrying capacities. The simulations were initiated with the first 100 cells occupied by each phenotype at its equilibrium population density and the remaining cells unoccupied. The simulations were run on a lattice consisting of 8000 cells, using a space increment of 0.1. For all graphs each line represents the density profiles at a different time point, shown by the different shades of grey, with each time point 500 units apart. In column (A) the polymorphic invasion speed is the same as the monomorphic establisher speed; in column (B) the polymorphic invasion speed is the same as the monomorphic disperser speed, and in (C) the polymorphic invasion speed is faster than either monomorphic invasion. For all the simulations the parameters used are the same as in Fig. 3 apart from in (i) have that = 0.001 and = 0.00025, in (ii) = 0.8, = 0.7, where is the competition coefficient, and in (iii) have both the parameters used in (i) and (ii) and additionally = 1.2 and = 1.