Table 2.

Summary of the model parameters

Fixed parameters

Number of nonplastic and plastic loci = 5 each

Length of the environmental gradient = 50 demes

Steepness of the gradient (change in optimum in adjacent demes) = 0.4 units

Strength of selection within demes (σ) = 2 units

Population size = 100 individuals/deme

Number of generations = 10,000

Parameters explored

Life history pattern: selection before dispersal versus dispersal before selection

Timing of environmental change: before versus after development

Magnitude of environmental change

Correlation of environmental change within and among generations

Migration pattern: stepping-stone versus island

Dispersal rate