Supplemental methods: Detailed model derivation, parameterization and validation from The world's biomes and primary production as a triple tragedy of the commons foraging game played among plants
In the main text we detail a general form of the model. To generate output we used the simplest possible first-order approximations of plant function. These have been previously applied to plants, but we derive these functions below, and provide a rationale for the parameters used. We also discuss the FLUXNET and MOD17 datasets in more detail. Finally, we show how the model can be expanded to include any number of substitutable or essential plant resource
