STRUCTURE AND FLORISTICS OF A REMNANT OF ARBOREOUS CAATINGA IN JUVENÍLIA, NORTHERN MINAS GERAIS, BRAZIL

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Rubens Manoel dos Santos Ana Carolina Maioli Campos Barbosa Hisaias de Souza Almeida Fábio Almeida Vieira Paola Ferreira Santos Douglas Antonio de Carvalho Ary Teixeira de Oliveira Filho

Abstract

Due to the phytophysiognomic heterogeneity of the northern Minas Gerais region, the structure and richness of local vegetation remnants vary considerably, and regardless of the fact that the region is yet little known, it has been widely explored economically. The objective of this study is to characterize the structure and floristics of a fragment of Arboreous Caatinga located in Juvenília, Minas Gerais. Twenty 20 × 20m plots (400 m2) were allocated, to a total of 0.8 ha, and all individuals in them with a CAP (circumference at breast height) ≥ 10 cm were recorded. To complement the floristic listing of shrub and tree components, four visits were undertaken to collect botanical material, between January and December 2003. The floristic composition was represented by 64 arboreous species, out of which 47 were sampled in the phytosociological survey. The local diversity was H’ = 2.90 and J’ = 0.76, with a dominance of species Anadenanthera colubrina, Poincianella pluviosa and Myracrodruon urundeuva, respectively with Dominance: 26.3%, 13.1% and 20.3%; Density: 11.2%, 16.6% and 10.1%; Frequency: 6.2%, 6.5% and 5.5% and Importance Value: 14.6%, 12.1% and 12.0%. The diameter distribution of the community tended to normality, with less individuals in smaller and larger diameter classes. The structural and floristic patterns of the community in question were found to be similar to other reasonably preserved remnants of deciduous forest, inside and outside the Caatinga biome, despite the evidence of local anthropic intervention. 

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How to Cite
SANTOS, Rubens Manoel dos et al. STRUCTURE AND FLORISTICS OF A REMNANT OF ARBOREOUS CAATINGA IN JUVENÍLIA, NORTHERN MINAS GERAIS, BRAZIL. CERNE, [S.l.], v. 17, n. 2, p. 247-258, may 2015. ISSN 2317-6342. Available at: <http://www.cerne.ufla.br/site/index.php/CERNE/article/view/40>. Date accessed: 15 nov. 2018.
Keywords
Diameter distribution, diversity, ecological dominance
Section
Article