highly significantp < 2.2 x 10 −16
The two-factor Anova analyses using genomic distance types (intra- vs inter-zone configuration) and geographic zones as explicative variables of genomic distance were highly significant (p < 2.2 x 10 −16 ) for all comparisons, except for the general distances distribution between continental and islands species (2 Zones– Fig 3 ; 4 Zones– S3 Fig ; 6 Zones– S4 Fig ).