Estrutura espacial e diamétrica de espécies arbóreas e seus condicionantes em um fragmento de cerrado sentido restrito no sudoeste goiano
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Data
2010-04-15
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Resumo
The aim of this study was to analyze population structure and spatial distribution pattern of five tree
species in a fragment of cerrado stricto sensu in the southwest of the Goiás State, Brazil. Fifty quadrats of 10 × 10 m (100
m2
) were surveyed, and all individuals within each quadrat were sampled. The theoric distributions of Poisson and Negative
Binomial and two indices of dispersion, the variance to mean ratio (I) and the Green’s coefficient (Ig
), were used to detect
the spatial pattern of the populations. The population structure was verified by the frequencies distribution of six size
classes. An aggregated spatial pattern was detected for all species, with smaller individuals segregated spatially from bigger
individuals, except for Qualea grandiflora Mart., and also the distribution of size classes in “reverse J-shaped”, but with
many particularities. This suggests differences in the structural pattern of the populations investigated and, consequently, in
its dynamics and structuring processes.
Descrição
v. 37, n. 2, p. 181-198, 2010
Palavras-chave
Distribuição agregada, Estrutura populacional, J-invertido, Recrutamento, Aggregated distribution, Population structure, Recruitment, Reverse J-shaped
Citação
BERNASOL, Wilson Pereira; RIBEIRO, Matheus de Souza Lima. Estrutura espacial e diamétrica de espécies arbóreas e seus condicionantes em um fragmento de cerrado sentido restrito no sudoeste goiano. Hoehnea, São Paulo, v. 37, n. 2, p. 181-198, 2010.