Cilmar Antônio Dalmaso

Estrutura e classificação de um remanescente de floresta ripária no município de Lages, SC

This paper investigates aspects of classification and reports the diversity in a remnant of a riparian forest in Lages, Santa Catarina. Twenty-five plots were allocated along the river, and all trees with diameter at breast height (DBH) greater than or equal to 5 cm were measured. The community had 67 tree species and a canopy with emergent species. The diameter distribution showed a self-regenerating community, with a large number of small trees and high values of density and basal area per hectare. The classification separated the sites with higher basal area, presence of Cabralea canjerana and Myrcia hatschbachii and the sites with presence of generalist species Celtis iguanaea and Ilex brevicuspis , denoting a large environmental variability in this forest.

PADRÃO ESPACIAL DE ESPÉCIES FLORESTAIS: ESTUDO DE CASO COM Ocotea odorifera (Vell.) Rohwer

Distinction between generating mechanisms of the spatial patterns of forest species – case study with Ocotea odorifera . The objective of this research was the understanding of the processes and generating mechanisms of the spatial distribution of Ocotea odorifera , discriminating influences of the environment from those arising due to interactions between individuals. For this, coordinates from species trees were taken in a region of 25 hectares of Mixed Rain Forest (FOM) sampled in the National Forest (FLONA) of Irati. These data, described as a spatial point process, were evaluated by two Spatial Statistics techniques. Initially, a Kernel intensity estimator verified the global patterns of trees dispersion in the sampled region, and posteriorly, the non-homogeneous Ripley’s K function was used to study the local patterns. It was verified that the species clusters were localized in the highest areas of the sampled region, possibly in better drained soils. Furthermore, attraction was found amongst the species individuals, originating clusters in the largest scales analyzed, as shown by the non-homogeneous Ripley’s K function.