Functional and phylogenetic dimensions of tree biodiversity reveal unique geographic patterns

Aim: Quantify tree functional and phylogenetic richness and divergence at the global scale, and explore the drivers underpinning these biogeographic patterns.
Location: Global
Time Period: Present
Major taxa studied: Trees 
Methods: Using global tree occurrence data, we outlined species’ observed ranges using individual alpha hulls to obtain per-pixel tree species composition. Using eight traits from a recent tree-trait database and a vascular-plant phylogeny we computed and mapped four pixel level biodiversity indices, including two metrics related to richness: phylogenetic richness and functional richness and two related to divergence: mean pairwise phylogenetic distance and Rao's quadratic entropy. To account for the effect of species richness, we also calculated standardized effect sizes accounting for richness for each pixel. We then explored the relations between richness and divergence and the latitudinal patterns of divergence both globally and across biomes. Finally, we used a ..., , , # Data from: Functional and phylogenetic dimensions of tree biodiversity reveal unique geographic patterns

[https://doi.org/10.5061/dryad.h9w0vt4rx](https://doi.org/10.5061/dryad.h9w0vt4rx)

This dataset contains code and data to generate maps of taxonomic, functional, and phylogenetic diversity of trees as well as resulting matrices. This includes individual tree species locality information compiled from several sources, trait data selected from Maynard et al 2022 and code to generate different subsets of the data (e.g. removing invasives, removing gymnosperms ) as presented in the article. This dataset also contains code and results from randomizations and simulations described in the main article to show robustness of the analyses. 

## Description of the data and file structure

The dataset is presented as two main folders: data and code. The data folder contains all input data raw and cleaned (files that start with REV) with the later taking care of taxonomy mismatches between da...