Table 1.

Parameters involved in the model.

PARAMETER	Controls	Typical values
Standard dev. of pop. distributions σ	Niche overlap	0.1-0.2
Mutation proportionality factor m	Phenotype Mutation Rate Pm per generation	0.0035-0.002 so that Pm = 0.1
Maximum per capita growth rate ri	Intrinsic growth rate	Random number in [0,1]
Fraction of positive interactions fC	Degree of cooperation	0.01

Implicancies of each parameter included in our model is listed; the quantities they control and their typical values.