Figure 1 in Snakes on an African plain: the radiation of Crotaphopeltis and Philothamnus into open habitat (Serpentes: Colubridae)

Figure 1 Habitat classification for genetic samples of Crotaphopeltis and Philothamnus species. Sampled localities were projected onto the biome map of Olson et al. (2001). Closed habitat (forest classes) is indicated by darker grey shades. Open habitat (including savanna) is shaded white to light grey. Full-size DOI: 10.7717/peerj.11728/fig-1