Diversidade de traços funcionais de espécies arbóreas de cerrado

Abstract

The aim of this study was to describe the functional attributes of arboreal species in fragments of cerrado stricto sensu with transition to Cerradão in Ipameri - GO, to describe which attributes are most representative in these phytophysiognomies. Were sampled 10 individuals of 20 species common in cerrados. Functional traits related to the tree architeture component and functional leaf traits were collected. With the functional traits evaluated, an analysis of variance and a posteriori test of Tukey were performed at 0.5%, then the data were standardized and done between the species and a cluster analysis. The results showed a great variability of the functional traits and a great complementarity among the species. Two species groups were observed. The group 1 was formed by species with functional traits specific to survival under adverse environmental conditions, such as poor soils, seasonality, fire events. The group 2 had traits related to the success and investment in height growth and in higher photosynthetic capacity and adapted to shading conditions within the cerradão area. The functional traits studied indicated a great diversity of adaptations between species. The mixture of traits depending on the local conditions, some will be disproportionate to the others and both groups of species are important for the maintenance of these phytophysiognomies in the landscape.