This tool provides a simple way to produce distributions of trees with subsets of taxa. The upper limit for the tool is 2,500 species. If larger subsets ar required you can download full trees.
The tool first trims to a subset, and then samples trees from a chosen pseudo-posterior distribution. Note that any further analyses should only be conducted with a large sample of trees.
Any use of full or partial (subset) tree data in research work requires the following citation:
Jetz, W., G. H. Thomas, J. B. Joy, K. Hartmann, and A. O. Mooers. 2012. The global diversity of birds in space and time. Nature 491:444-448
For any additional use of the birdtree web tool, please cite “birdtree.org”.
Results taking longer than expected?
Traffic volume may result in longer processing times. If you don't recieve an email with the completed subset trees within 24 hours, please contact us.