Figure 2. Main vegetation physiognomies of the cerrado reserve at Mogi-Guaçu, Brazil. Cerrado sensu stricto consists of a dense scrub of shrubs and trees and a fair amount of herbaceous vegetation, whereas the cerradão is a closed woodland with a reduced ground layer. Nests of Camponotus renggeri (N = 46) were found in cerrado sensu stricto (22%) and cerradão (78%), whereas Camponotus rufipes (N = 40) occurred only in cerrado sensu stricto. Drawing by L. Mota.