Estructura poblacional de Myrocarpus frondosus Allemão en un bosque en galería de la Selva Paranaense en Misiones, Argentina

In order to describe the population structure of Myrocarpus frondosus Allemao, the structure of size class and the spatial distribution of the individual species was studied, in a riparian area of the Paranaense Forest in Misiones, Argentina, at 27o39'00" S and 55o44'30" W. The species was studied in circular plots. All the individuals of Myrocarpus frondosus with diameter greater or equal to 10 cm (at 1.3 m height - DBH) were considered for the tree stage, and all seedlings with diameter ranging from 2 cm to 9.9 cm were considered for natural regeneration. Three hundred and ninety six individuals were found (431 ind. ha -1 ), with 180 individuals in the tree stage and 216 individuals in the natural regeneration stage.  The results show that the diameter size of the population varied from 2 cm to 50 cm with reverse J distribution, representing a substantial recruitment in the younger age classes. The species presented a clustered pattern of spatial distribution.