Excerpt from Systematics of the Leptodactylid Frog Genus Telmatobius in the Andes of Northern PeruThe physiography of northern Peru is dominated by the Cordillera Occidental, the Cordillera Central, and the Huancabamba Depression. The Huancabamba Depression is a system of low arid valleys (ca. 1000 - 2000 m above sea level) and isolated mountain ranges (including the Cordillera Colan and Cordillera Huancabamba) that separate the northern and central Andes (duellman, South of the Huancabamba Depression, the central Andes are divided into the Cordillera Occidental and Cordillera Central by the low, arid valley of the Rio Maranon. The lower Pacific slopes of the Cordillera Occidental are relatively arid, with desert at low elevations successively giving way to spiny forest, dry forest, cloud forest, and paramo (montane grassland above treeline), at the highest elevations (tosi, The Cordillera Central is more lush, with paramo at the highest elevations, cloud forest at lower elevations, and subtropical rainforest on the lowest Amazonian slopes (tosi, The geographic distribution of each species is shown in Figure 1, and their altitudinal distributions are shown in Figure 2.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.