Figure 3

Quadratic and linear regressions between the diversity or structural response variables and distance from cerrado edge, represented as the mid-point of each plot, along three transects in the understorey of the study site. Each plot presents two lines, one for quadratic regression, and other for linear regression. Significant regressions are presented with a continuous line, non-significant ones with an interrupted line. Please note that some of variables presented significance for both quadratic and linear regression. A: number of species (i.e. species richness), B: Fisher’s alpha diversity index, C: Shannon’s H index, D: Pielou’s evenness index, E: Phylogenetic diversity (PD), F: Phylogenetic diversity rate, G: total number of individuals, H: mean vegetation height, I: vegetation height standard deviation, J: vegetation height coefficient of variation. For the variables related to vegetation height, we removed a single outlier, located at 322.5 m from the cerrado edge and indicated by a *.