mpacto de la invasión de especies exóticas en la composición florística y estructural de especies forestales en Isla Martín García, Buenos Aires, Argentina

JUAN MANUEL AZARO; NADIA KASTELANOVICH; DR. JUAN MANUEL CELLINI

Conferencia; La 2da Conferencia Electrónica Internacional sobre Bosques - Bosques Sostenibles: Ecología, Manejo, Productos y Comercio; 2021

The definition of native forest takes on a holistic meaning, because it incorporates units or types of environments or vegetation into the distribution map and the process of territorial planning that, although they do not show a forest cover, are fundamental for the ecosystem of the neighboring forests and those of those that contain. Martín García Island is located in the upper Río de La Plata with a surface area of 180 ha. The vegetation has undergone a strong modification due to the high population density during the first half of the 20th century. Consequently, forests present different degrees of fragmentation, constituting portions of varying sizes. In many areas of the island the presence of exotic species is observed. Its introduction into an ecosystem has serious consequences on its stability. The study of the structure and forest composition was carried out, in order to obtain a diagnosis that allows the reserve to be sectorized according to the state in which it is located and the limits of each vegetation unit. The survey was carried out in a total of 143 parcels distributed in an equidistant way in the intangible reserve of Martin García Island. The diagnosis of the variations in the floristic and structural composition of the existing forest species in the region shows that the introduction of exotic species within the structure of the native forest of Martín García Island does not represent a considerable threat as long as the precautions are taken necessary to eliminate existing exotic tree species from the island.