Abstract
The purpose of this study was to characterize the vegetation of the Serra da Guia, Sergipe state, Brazil, through the floristic survey of two areas, one located at the base (Caatinga - 09°58’09”S, 37°51’52”W) and the other at the top of the mountain (Brejo de Altitude - 09°58’55”S, 37°52’06”W), with systematic monthly collections from October 2009 to September 2010. We sampled 416 species (88 families): 238 species (60 families) in the area of Caatinga and 284 species (76 families) in the Brejo. In the Caatinga, families with higher species richness were Fabaceae (32) and Euphorbiaceae (17), while in the Brejo, these were Fabaceae (25) and Poaceae (19). The Serra da Guia is the first Brejo de Altitude described and studied in the Sergipe state, and analysis of the floristic composition of plant communities in the Caatinga and the Brejo has shown that these formations have very different characteristics and high biodiversity.
Highlights
The Caatinga is the type of vegetation that covers most of the area with semi-arid climate northeastern Brazil (Giulietti et al 2003) and is characterized by being the only Brazilian region with limits restricted entirely to the national territory (Leal et al 2003)
According to Locatelli et al (2004), the environments of the Brejos de Altitude are isolated from the Atlantic Forest and Caatinga, having a typical biota, consisting of a pool of species common to both the Atlantic and Amazonian forests, including endemic species
The purpose of this study was to characterize the vegetation of the Serra da Guia, located in Poço Redondo, Sergipe state, Brazil, through the floristic survey of two areas, one located at the base of the mountain (Caatinga) and the other at the top of the mountain (Brejo de Altitude)
Summary
The Caatinga is the type of vegetation that covers most of the area with semi-arid climate northeastern Brazil (Giulietti et al 2003) and is characterized by being the only Brazilian region with limits restricted entirely to the national territory (Leal et al 2003). The purpose of this study was to characterize the vegetation of the Serra da Guia, located in Poço Redondo, Sergipe state, Brazil, through the floristic survey of two areas, one located at the base of the mountain (Caatinga) and the other at the top of the mountain (Brejo de Altitude).
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