http://www1.universia.net/catalogaxxi/C10048PPESII1/S139739/P139651NN1/INDEX.HTML1988 SIERRA DE MANANTLÁN EN RESERVAS DE LA BIOSFERA - UNESCOhttp://www1.universia.net/catalogaxxi/img/cabecera/universia1.gif http://www1.universia.net/CatalogaXXI «The reserve is located in the transition of the Nearctic and Neotropical realms and encompasses parts of the Sierra Madre del Sur, with a wide range of altitudes, climates and soils. The effects of tectonic and volcanic activities and erosion are notable within the reserve. Different types of forests are present in the reserve including mesophytic, cloud, and dry deciduous and semi-deciduous tropical forests.» ]]>