.

Authors

  • Jorge Luiz Waechter Departamento de Botânica - UFRGS
  • João André Jarenkow Departamento de Botânica - UFPEL

Abstract

The specific composition and community structure of the arboreal component in the peat forests of Taim were analysed by the point-centered quarter method. A total of only 30 sample-points were shown to be significant in the characterization of trees with a diameter greater than or equal to 10 cm at the diameter at breast height (DBH). The swamp forests of Taim present an impoverished number of tree species, the most important being, in decreasing importance value (IV), Erythrina crista-galli, Ficus organensis, Blepharocalyx salicifolius, Eugenia uruguayensis e Sebastiania brasiliensis. The Shannon index of diversity (H' = 1.886) is one of the lowest reported for Brazilian arboreal communities, probably affected by the southern latitude (lower temperatures) and waterlogged soils (oxygen deficiency). The forest structure is characterized by two clearly discontinuous layers which are composed of relatively high and vigorous trees (E. crista-galli and F. organensis) and of lower and thinner trees (B. salicifolius, E. uruguayensis e S. brasiliensis).

Author Biographies

Jorge Luiz Waechter, Departamento de Botânica - UFRGS

Graduação em Ciências Biológicas pela Universidade Federal do Rio Grande do Sul, Mestrado em Botânica pela Universidade Federal do Rio Grande do Sul e Doutorado em Ecologia e Recursos Naturais pela Universidade Federal de São Carlos. Atualmente é Professor Associado da Universidade Federal do Rio Grande do Sul.

Mais informações no Currículo Lattes.

João André Jarenkow, Departamento de Botânica - UFPEL

Graduado em Ciências Biológicas e Mestre em Botânica, pela Universidade Federal do Rio Grande do Sul, e Doutor em Ecologia e Recursos Naturais, pela Universidade Federal de São Carlos. Atualmente é Professor Associado 3 da Universidade Federal do Rio Grande do Sul.

Mais informações no Currículo Lattes.

Downloads

Published

1998-01-01

Issue

Vol. 11 No. 1 (1998)

Section

Artigos

License

Copyright (c) 1998 Jorge Luiz Waechter, João André Jarenkow

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

After the electronic publication of the manuscript, the authors are entitled, without any restriction, on its contents.

License Creative Commons Atribuição 4.0 Internacional - CC BY

 Licença Creative Commons

Authors are able to take on additional contracts separately, non-exclusive distribution of the version of the paper published in this journal (ex.: publish in institutional repository or as a book), with an acknowledgment of its initial publication in this journal.