Introgression and mating patterns between white-handed gibbons (Hylobates lar) and pileated gibbons (Hylobates pileatus) in a natural hybrid zone
Fig 1
Distribution of white-handed gibbons (Hylobates lar), pileated gibbons (H. pileatus) and study sites.
The approximate species distribution range was manually drawn based on previous studies [15, 36] and the Gibbon Research Lab (http://www.gibbons.de/main2/). The protected areas, country borders, coastlines and rivers came from OpenStreetMap and OpenStreetMap Foundation, which was available under the Open Database License.