Table 1.

Output parameters from each of the phylogenetic models implemented in BayesTraits.

Model	Log Bayes factor compared with random walk	σ2	α	Statistic
Random walk	N/A	43.095	−11.705	N/A
Lambda	−3.337	43.184	−11.561	λ = 0.978
Delta	5.183	41.803	−11.823	δ = 0.735
Kappa	22.200	33.156	−14.337	κ = 0.395
Variable rates	169.658	41.285	−14.148	No. of rates = 30.5
Ornstein–Uhlenbeck	−3.996	44.002	−11.869	OU = 0.000173
Directional trend	−1.009	43.252	−12.064	β = 0.0151