Leaf variation in Pourouma guianensis from the Project's Tintaya plot.
During plot re-surveys, the Madidi Project is measuring plant traits known to be important for distribution and co-existence of species along environmental gradients at both large spatial scales (i.e., across elevations) and within local communities. For 5 individuals of each species in each plot, we are collecting replicated measures of leaf area, leaf size, leaf nitrogen content, leaf number, wood density, vessel diameter, vessel density, and growth rate. At the population level, we are measuring mortality and recruitment rates. Finally, we are using field and herbarium data to obtain information on seed size and dispersal mode. We have already collected trait information in the field for 1,640 individuals and 385 species.