2018-03-27T12:58:55Z (GMT) by
Rare invasion simulations were ran with expansion-collision dynamics with initial cell-cell distance equals 3. Sheet 2 is the result for a single cooperator that invades a defector population. Sheet 3 is the result for a single defector that invades a defector population. Lines in Fig 6C (red for cooperator and green for defector) were drawn where the invasion probability first equals or exceeds 0.6, representing the boundary between invasion and non-invasion (a probability of 0.5 corresponds with selective neutrality) based on the yellow colored cells in the spreadsheet.