POPULATION STRUCTURE OF Araucaria angustifolia IN THE IGUAÇU NATIONAL PARK

Authors

  • Alci Albiero Junior Departamento de Botânica, Universidade Federal do Paraná
  • Lívia Godinho Temponi UNIOESTE
  • Franklin Galvão UFPR
  • Paulo Cesar Botosso EMBRAPA Floresta
  • Ana Tereza Bittencourt Guimarães UNIOESTE

DOI:

https://doi.org/10.5380/rf.v45i2.35673

Keywords:

Density canopy, mixed temperate rain forest, spatial distribution, regeneration.

Abstract

The aim of this study was to analyze the population structure, regeneration and spatial distribution of Araucaria angustifolia (Bertol.) Kuntz. within a natural forest and in forest edge with agricultural monoculture. All araucaria individuals from 10 cm high were recorded in 200 plots of 10 x 10 m. 479 individuals were sampled (416 at the edge and 63 inside). Of these, 33 were females, 37 males, 49 juveniles and 360 regenerating individuals. The population structure performance was similar to standard inverted-J. Regenerating individuals had mainly the aggregate distribution pattern, while juveniles, males and females had a uniform pattern. Density of the canopy affected frequency of the individuals, where higher frequencies at higher densities were observed, indicating that regeneration of this species is more effective in shadowed environments. Due to the large number of individuals sampled in different size classes, the Iguaçu National Park is an important conservation remaining of A. angustifolia.

Keyword: Density canopy; mixed temperate rain forest; spatial distribution; regeneration

Author Biography

Alci Albiero Junior, Departamento de Botânica, Universidade Federal do Paraná

Mestrando em Botânica pela Universidade Federal do Paraná atuando principalmente nas áreas de dinâmica de florestas naturais e dendroecologia

Published

2015-03-05

How to Cite

Albiero Junior, A., Temponi, L. G., Galvão, F., Botosso, P. C., & Guimarães, A. T. B. (2015). POPULATION STRUCTURE OF Araucaria angustifolia IN THE IGUAÇU NATIONAL PARK. Floresta, 45(2), 361–372. https://doi.org/10.5380/rf.v45i2.35673

Issue

Section

Artigos