Structure and tree species composition in different habitats of savanna used by indigenous people in the Northern Brazilian Amazon

Biodiversity Data Journal
Rodrigo Leonardo Costa de OliveiraReinaldo Imbrozio Barbosa

Abstract

Woody plant diversity from the Amazonian savannas has been poorly quantified. In order to improve the knowledge on wood plants of these regional ecosystems, a tree inventory was carried out in four different habitats used by indigenous people living in the savanna areas of the Northern Brazilian Amazon. The habitats were divided into two types (or groups) of vegetation formations: forest (riparian forest, forest island, and buritizal = Mauritia palm formation) and non-forest (typical savanna). The inventory was carried out in two hectares established in the Darora Indigenous Community region, north of the state of Roraima. The typical savanna is the most densely populated area (709 stems ha(-1)); however, it has the lowest tree species richness (nine species, seven families) in relation to typical forest habitats: riparian forest (22 species, 13 families and 202 stems ha(-1)), forest islands (13 species, 10 families and 264 stems ha(-1)), and buritizal (19 species, 15 families and 600 stems ha(-1)). The tree structure (density and dominance) of the forest habitats located in the savanna areas studied in this work is smaller in relation to forest habitats derived from continuous areas of other parts of the Amazon. These environm...Continue Reading

References

Aug 30, 2017·Biodiversity Data Journal·Maria Aparecida de Moura AraújoReinaldo Imbrozio Barbosa

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