Fig. 1From: Semi-permeable species boundaries in Iberian barbels (Barbus and Luciobarbus, Cyprinidae)Map of the Iberian Peninsula showing major river drainages and distribution of barbel species. Color lines delimit the distribution ranges of each species. Collection sites: 1 – Tâmega; 2 – Zêzere; 3 – Ocreza; 4 – Erges; 5 – Xarrama; 6 – Caia; 7 – Guadiana; 8 – Ardila; 9 – Chança; 10 – Vascão; 11 – Foupana; 12 – Segura; 13 – Bullent; 14 – Cabriel; 15 – Mijares; 16 – Mesa; 17 – Alhama (see also Table 1)Back to article page