Fig. 3: Comparison of the number of arborescent palm trees of three species (Mauritia flexuosa, Euterpe precatoria and Oenocarpus bataua) visible in the UAV mosaics with model-predicted results across fifty-five sites.

For sites with less than a thousand individuals, the values of palms in the UAV mosaics were based on the count of GPS locations of palms with visible crowns in the canopy at each site. For the sites with a greater number of individuals, the reference values were the total count of manually located crowns in the UAV mosaics. The red lines show the 1:1 relationship in each case. Source data are provided as a Source Data file.