Results of STRUCTURE and NEWHYBRIDS (2nd and 3rd criterion) analyses with simulated samples of <i>n</i> = 400.

Abbreviations: HP – hybrid proportion, Tq – threshold q-value. Power ( = efficiency sensu Vähä & Primmer [42]): number of correctly identified individuals for a category over the actual number of that category in the sample; accuracy: number of correctly identified individuals for a category over the total number of individuals assigned to that category [43], [44]. * denotes simulations conducted with samples sizes of the three species matching the empirical data set, and asymmetric hybridization rates consistent with those detected in the analysis of sampled data (as depicted in Fig. 3A).