Table 4.

Correlation between equilibrium GC and trait in empirical data

			P = 100			Branchwise (P = 1)
Dataset	Taxa	Sites	cova	Rb	ppc	cov	R	pp
Plac nuc	73	15 117	−1.11	−0.37	0.01	−1.43	−0.35	0.01
Plac nuc	33	112 089	−1.89	−0.49	0.04	−1.73	−0.36	0.08
Cet mit	201	11 355	0.92	0.28	0.90	0.98	0.25	0.90
Plac mit	273	3843	1.06	0.24	0.97	1.19	0.24	0.96
Arch RNA	43	1801	70.0	0.78	>0.99	72.0	0.62	>0.99

^aCovariance. ^bCorrelation coefficient. ^cposterior probability of a positive correlation.