Relationship between four estimates of tolerance and variation in resistance among populations of two ploidy types in the perennial herb Cardamine pratensis.

Values are Pearson’s correlation coefficients calculated using means of 25 tetraploid and 28 octoploid populations. Plant resistance against oviposition and the four estimates of tolerance were estimated under controlled environmental conditions (see Methods for explanation). Because all plants survived, the relationship between survival tolerance and plant resistance against oviposition for tetraploids is not included.