Resumo

MARCOS, María A  e  MANCINI, María V. Comunidades vegetales de la costa norte del Golfo San Matías, Río Negro, Argentina. Ecol. austral [online]. 2012, vol.22, n.3, pp.188-194. ISSN 1667-782X.

Vegetation communities of north coast of San Matias Gulf, Río Negro, Argentina: Coastal dune environments are complex ecosystems with a high internal variation and extensive zonation of vegetation along the shoreline. The north coast of San Matias Gulf presents a dunes system where the vegetation is distributed in a gradient from the coast with psammophytic communities to the interior with xerophytic shrub communities. The objectives of this article are 1) to describe vegetation communities of the study area, and 2) to analyze the association between communities and geomorphological units. We performed a total of 16 vegetation censuses with four replicates in each geomorphological unit. The vegetation analysis allowed to describe three vegetation communities. The association between floristic diversity and the four geomorphological units of Bajo de la Quinta is mainly linked to the characteristics of the substrate.

Palavras-chave : Coast vegetation; Dunes coast environments; Geomorphological characteristic; Monte.

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