Supplementary material for: Phylogenetic biodiversity metrics should account for both accumulation and attrition of evolutionary heritage

Phylogenetic metrics are essential tools used in the study of ecology, evolution and conservation. Phylogenetic diversity (PD) in particular is one of the most prominent measures of biodiversity, and is based on the idea that biological features accumulate along the edges of phylogenetic trees that are summed. We argue that PD and many other phylogenetic biodiversity metrics fail to capture an essential process that we term attrition. Attrition is the gradual loss of features and other sources of variety through causes other than extinction. Here we introduce `EvoHeritage', a generalisation of PD that is founded on the joint processes of accumulation and attrition of features. We argue that whilst PD measures evolutionary history, EvoHeritage is required to capture a more pertinent subset of evolutionary history including only components that have survived attrition. We show that EvoHeritage is not the same as PD on a tree with scaled edges; instead, accumulation and attrition interact ..., Data was reprocessed from published sources as described in the associated manuscript methods section
There is no primary data included.
Supplementary material and glossary contain mathematical details and proofs rather than any primary data sets., R for use of code, otherwise PDF and CSV readers are needed to access the files., # Title of Dataset

***

This dataset contains

1. A glossary
2. Details and mathematical proofs
3. Data plotted in figure 9

## Description of the data and file structure

1. The glossary is a single PDF file
2. The details and mathematical proofs are a single PDF file
3. Data plotted in figure 9 as a series of 4 .csv files
a. Filenames correpond to Jurassic and Cretaceous cases as described in main text
b. Column with name result.data.tip.label gives species names
c. Columns with names LF.min, LF.lq, LF.median, LF.uq, LF.max give the living-fossil-ness values min, lower quartile, median, upper quartile and max respectively.

## Sharing/Access information

Data was derived from the following sources (as described in the associated manuscript methods)

* Upham, N. S., J. A. Esselstyn, and W. Jetz. 2019. Inferring the mammal tree: species-level sets of phylogenies for questions in ecology, evolution, and conservation. PLoS Biology 17(12):e3000494. https://datadryad.org/stash/...