Trees, shrubs and climbers of the cerradão of the Bauru Botanical Garden, SP / Arvores, arbustos e trepadeiras do cerradão do Jardim Botanico Municipal de Bauru, SP

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The Cerrado Biome contains an immense diversity of species, most of them being endemic. Due to the intense and increasing threats to its natural resources, the Cerrado is currently considered as a priority area for the world-wide biological diversity conservation. In the 1995 workshop ?Conservation basis and the sustainable use of the cerrado areas of São Paulo State?, the priority areas for conservation were considered those with greater anthropic pressure, such as the Bauru region, where the cerrado fragments are highly endangered because they are close to the city, which is growing towards the cerrado areas. Bauru is located at the middle-west of São Paulo State, and the predominant vegetation is the cerradão, with a poorly known flora, especially the climbers. Most floristic surveys carried out in São Paulo State have simply disregarded the climbers. We aimed to document the alfa-diversity of a cerradão area, considering both the species of shrubs, trees and climbers (richness) and their abundance (equitability). We set 100 random 10 x 10 m plots in the cerradão of the Bauru Botanical Garden, which has a total area of 321,71 hectares. We sampled and identified all shrubs, trees and climbers rooted in each plot. We found 14.208 individuals of 192 species in 129 genera and 55 families, of which 140 (73%) species of shrubs and trees and 52 (27%) species of climbers. Among the shrubs and trees sampled 7.744 individuals were not infested by climbers and the other 3.429 individuals had one or more climbers, thus yielding infestation of 30,7% of the shrubs and trees in the area and a mean of 1,34 climbers per phorophyte. The Bauru Botanical Garden is an important priority area for conservation because it represents one of the last fragments with total area larger than 200 hectares in the middle-west of São Paulo State, because it is under high demographic pressure due to its proximity with the city, and especially because it has a high floristic diversity

ASSUNTO(S)

phorophytes floristic inventory trepadeira plant communities levantamento floristico climber comunidades vegetais

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