FIGURE 7 in A catalogue of the vascular plants of the Caatinga Phytogeographical Domain: a synthesis of floristic and phytosociological surveys

FIGURE 7. Rarefaction curves showing the number of observed species in the different environment types within the Caatinga Phytogeographical Domain, with the 95% confidence interval for the observations (calculated with 1,000 randomizations), and the number of species estimated by ICE, Chao 2, Jackknife 1 and Jackknife 2. Campo Maior and Chapada Diamantina are not shown due the dearth of data available for caatinga in these environments.