Five terrestrial ecoregions extend across the state. The Southern Pacific dry forests lie on the southern slopes of the Sierra Madre del Sur, extending from the coast up to 1400 meters elevation. The forests are predominantly deciduous during the long dry season. The Sierra Madre del Sur pine-oak forests occupy the higher slopes of the Sierra Madre del Sur. These forests harbor a great diversity of species, including many endemic orchids, butterflies, and birds. The Balsas dry forests lie in the basin of the Balsas River, north of the Sierra Madre del Sur, and are notable for the diversity of mammal species, including jaguarundi, coati, ocelot, and collared peccary. The northernmost part of the state includes portions of the Trans-Mexican Volcanic Belt pine-oak forests, which occupy the mountainous northern rim of the Balsas basin. The Mexican South Pacific mangroves are found in coastal lagoons along the coast of Michoacán, Guerrero, and Oaxaca.