# Extended Data Table 2 Relationship between fitness and life history parameters

1. a, CE regime, and b, CP regime. X denotes parameters that were Box–Cox transformed to meet requirements of normality and equal variance. WS→SM, proportion of lines producing SM during phase I. Above the diagonal are tests for the ancestral regimes (grey), below for the evolved regimes (black). Bold denotes significance at the level of P < 0.05.