Abstract

SABATIER, Yamila et al. Natural distribution of Nothofagus alpina and Nothofagus obliqua (Nothofagaceae) in Argentina, two productively important tree species of the North Patagonian temperate forests. Bol. Soc. Argent. Bot. [online]. 2011, vol.46, n.1-2, pp.131-138. ISSN 1851-2372.

Knowing the natural range of any species is essential to plan its conservation or use. The South-American beeches Raulí [Nothofagus alpina (Poepp. & Endl.) Oerst. = Nothofagus nervosa (Phil.) Dim. et Mil.] and Roble Pellín [Nothofagus obliqua (Mirb.) Oerst. ssp. obliqua] are two important forest tree species of the North Patagonian forests, and the object of a current domestication program. Natural distribution of both beeches in Argentina was mapped based on digital information of previous works which was verified by local qualified informants, ground control check and visual interpretation of images freely provided by Google Earth. Raulí is present over a surface of 79,636 ha, while 33,859 ha are occupied by forests with the presence of Roble Pellín. 97 % of the Raulí and 83 % of the Roble Pellín surfaces are under the protection of the National Park Administration. However, many forests of particular conservation relevance are under the Neuquén Province jurisdiction, what should be considered when planning a conservation strategy for both species.

Keywords : Raulí; Roble Pellín; Distribution maps; Conservation; Sub-Antarctic Forest.

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