Las bases importan: relevamiento de plantas nativas y exóticas de los Parques Nacionales del noroeste de la Patagonia

CALVIÑO, C. I.; BRION, C.; DAMASCOS, M.; GROSFELD, J.; PUNTIERI, J.; VIDAL RUSSELL R.; EZCURRA, C.

BOLETíN DE LA SOCIEDAD ARGENTINA DE BOTáNICA

SOCIEDAD ARGENTINA DE BOTÁNICA

Lugar: Córdoba; Año: 2023 vol. 58 p. 5 - 18

0373-580X

Background and aims: Inventories in protected areas are essential for planningconservation actions. We aim to: provide a database of the vascular plant speciesof the National Parks of northwestern Patagonia, Argentina; highlight the singularityof these Parks; and analyze the incidence of exotic species in the protected areasof this region.M&M: We generated a database of the species of Lanín, Nahuel Huapi (including PNLos Arrayanes), Lago Puelo and Los Alerces National Parks. For each species, thefollowing variables were recorded: botanical family, scientific name, common name,native or exotic character for Argentina, habit and environment. The presence ofeach species was supported by a reference herbarium specimen. The richness andtaxonomic composition of native and exotic species, and of native species exclusiveto each Park and of exotic species present in all of them were analyzed. Speciesrichness by habit and environment was also determined.Results: A total of 1304 species, subspecies and varieties were recorded, 975 arenative to Argentina and 329 are exotics. The percentage of exotic species rangedfrom 17% (Lanín) to 31% (Lago Puelo).Conclusions: The Parks analyzed have a diverse and unique native flora and theirbiodiversity can be strongly threatened by the high percentage of exotic plantspecies. The database generated is a fundamental tool for planning conservationand management policies in these Parks.