Supplementary methods

Describes statistical methods omitted from paper because they were not relevant to the results presented

Final data used

The data used for the phylogenetic meta-analysis in Phylometa. The data file is formatted in accordance with the instructions in the Phylometa manual: it is tab-delimited and the columns are taxon name, taxon-specific effect size, effect size variance, and moderator grouping. In moderator grouping, 0=arachnid, lizard or fish, 1=mammal, 2=bird, and 3=insect

Effect sizes and study identities

An Excel spreadsheet of the effect sizes (Hedges G) included in our study. Note: Missing Hedges' G indicates that sample size was too small to estimate effect size or direction was not provided in original paper