Figure 2From: Transitions between Andean and Amazonian centers of endemism in the radiation of some arboreal rodentsGeographic ranges of target clades examined in this study (Andean species are noted in parentheses). (a) bamboo rats (Dactylomys peruanus, Olallamys albicauda, and O. edax); (b) brush-tailed rats (Isothrix barbarabrownae); and (c) spiny tree-rats (Mesomys cf. leniceps). Range maps are from the IUCN [32] database and are overlaid on a digital elevation map of northern South America (progressively darker shades of gray represent elevations from sea level to 6900Â m).Back to article page