Analysis of Molecular Variance (AMOVA) in the three interacting species.

Variance, percentage of variation, Φ-statistics and P-values are shown.A) AMOVA for the plant, based on the structure of visitors' composition observed by Espíndola et al.[16]: two groups were defined as a function of the main pollinator (either P. phalaenoides or P. grisescens). B) AMOVA for insects, based on the spatial genetic structure of the plant. First and second values correspond to results obtained when considering the model- (K = 2) and non model-based (K = 6) spatial genetic structures of the plant, respectively.