Author Contributions
DG and NM planned and designed the research. DG collected and analyzed the data. DG wrote the first draft of the manuscript. DG and NM contributed equally to substantial revisions of the manuscript.
Table 1 Phylogenetic multiple regressions explaining variation in FST. In each model only the main effect of factors is considered, i.e., no interactions. AIC and λ fit (scaling parameter to correct for phylogeny) were estimated using maximum likelihood. Underlined variables indicate that at least one of their terms was a significant factor in the corresponding model. (Thick underline: P≤0.005, thin underline: 0.005<P<0.05).