2-D Adaptive Landscape - Parameters

Try these scenarios:

Selection on a fitness landscape:

Population Mean: 60
Peak 1 Mean = Peak 2 Mean = Peak 3 Mean = 200
Population Size: maximum (position slider all the way to the right).

Press the run button and selection will bring the mean of the population to a value near 200.

Population stuck at a local peak:

Do not allow mutation

Population Mean: 60
Peak 1 Mean: 60
Peak 2 Mean: 340
Peak 3 Mean: 340

Population Variance: minimum (position slider all the way to the left)
Peak 1 Variance: minimum
Peak 2 Variance: minimum
Peak 3 Variance: minimum

Peak 2 Height: maximum (position slider all the way to the right)
Peak 3 Height: maximum

Press the run button and selection will drive the population towards the nearest peak even though it is not the global peak. If you would like to see the effect of mutation, select the mutation option while the simulation is running (and wait a couple of minutes).

Population divergence:

Allow mate preference

Population Mean: 200
Peak 1 Mean: 140
Peak 2 Mean: 200
Peak 3 Mean: 260

Population Variance: maximum
Peak 1 Variance: minimum
Peak 2 Variance: minimum
Peak 3 Variance: minimum

Population Size: maximum
Peak 1 Height: 1/3 of maximum
Peak 2 Height: 2/3 of maximum
Peak 3 Heigth: 1/3 of maximum

Select the run button and wait for a few seconds. When the population is evenly distributed over the second (middle) peak, rapidly decrease the Peak 2 Height value to its minimum.

If the population tracks to only one of the two remaining peaks, press stop, then reset, then adjust the Peak 2 Height back to 2/3 of its maximum. Repeat the procedure described in the previous paragraph.