Anthropogenic Landscape in Southeastern Amazonia: Contemporary Impacts of Low-Intensity Harvesting and Dispersal of Brazil Nuts by the Kayapó Indigenous People
Figure 2
Multiple regression analysis testing the effect of Brazil nut harvesting intensity on the density of seedlings.
The partial regression to the left shows the relationships between density of B. excelsa seedlings (DS) and years of harvest (YH), and the partial regression on the right shows the relationship between density of seedlings and commercial seed production in tons (PR) in B. excelsa groves in the Kayapó Indigenous Land, southeastern Amazonia. The points in each graph represent the 20 B. excelsa groves sampled. The full multiple regression model has R2 = 0.576.