Abstract
The western margin of southern South America bears cool temperate rainforest over a narrow landmass of some 17.5° of latitude, encompassing great physiographic diversity. The South American rainforest zone constitutes a remarkable forest island, widely separated from the closest wet, closed forest types on the South American continent by 1500 km to 2000 km. To the north, it is bound by seasonal, mediterranean-type climate scrublands and one of the driest deserts on earth, the Atacama. To the east, the rainforest intergrades with a narrow band of deciduous Nothofagus or Austrocedrus chilensis coniferous forest, followed by dry Patagonian steppe. Southward is the Antarctica continent, and westward the Pacific Ocean. In this forest island are found high productivity levels (Schmidt & Lara, 1985), the second-longest-living tree in the world—Fitzroya cupressoides attaining more than 3600 years (Lara, 1993), and many obligately outbred woody species (Riveros, 1991).
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Arroyo, M.T.K., Riveros, M., Peñaloza, A., Cavieres, L., Faggi, A.M. (1996). Phytogeographic Relationships and Regional Richness Patterns of the Cool Temperate Rainforest Flora of Southern South America. In: Lawford, R.G., Fuentes, E., Alaback, P.B. (eds) High-Latitude Rainforests and Associated Ecosystems of the West Coast of the Americas. Ecological Studies, vol 116. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3970-3_8
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