Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326678
Type: Artigo
Title: Spatial Patterns Of Two Co-occurring Savanna And Forest Tree Species In A Dense Fire-protected Savanna Fragment
Author: da Costa
Rafael Carvalho; Maes dos Santos
Flavio Antonio
Abstract: Savanna-forest transition under fire-exclusion could be explained by differential competitive performance of savanna and forest species under shading/fire-exclusion. Aiming to understand strategies related to either habitat affinity, we investigated spatial patterns of a savanna and a forest species in a fire-protected savanna. We predicted that: savanna species would have lower abundance than the forest species due to a restriction in the number of open microsites; segregation of size classes and a trend from clumping to regularity with size for forest species due to absence of microsite limitation and intra-specifc competition; and spatial association and increasing clustering with size for savanna species due to microsite limitation. To test these predictions, we described spatial patterns of plants in two size classes in three plots of 0.5 ha. We analyzed spatial patterns and associations of size classes using SADIE methodology. Different from what we expected, both species were more abundant among the studied plots and exhibited an increasing aggregation from small to large size classes. We also found a positive spatial association between size classes of both. These results suggest that both savanna and forest species produce similar spatial patterns independently of habitat affinity. We discuss the possible processes responsible for the observed patterns.
Subject: Cerrado
Competition
Fire
Microsite Limitation
Recruitment
Sadie
Savanna
Spatial Patterns
Editor: Soc Botanica Brasil
São Paulo
Rights: aberto
Identifier DOI: 10.1590/0102-33062016abb0137
Address: http://www.scielo.br/scielo.php?pid=S0102-33062016000400577&script=sci_arttext
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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