Table 5 . The correlation of P_n/(P_s + 1) = ψ and θ_s and N_e, respectively, in 10 eukaryotic species.

	ψ vs. θs (groups of 4)			ψ vs.Ne (groups of 4)
Species	n	ρ	P-value	n	ρ	P-value
D. melanogaster	77	−0.172	0.067	77	−0.1	0.194
H. sapiens	110	−0.068	0.239	110	0.016	0.564
M. m. castaneus	18	−0.253	0.155	18	−0.261	0.147
A. thaliana	231	0.051	0.781	231	0.055	0.799
C. grandiflora	64	−0.357	0.002	64	−0.483	2.673 × 10−5
S. bicolor	35	0.093	0.702	35	0.001	0.504
B. stricta	33	0.164	0.818	33	−0.168	0.175
A. lyrata	18	−0.477	0.022	18	−0.507	0.016
C. rubella	13	0.451	0.939	13	0.491	0.955
S. paradoxus	25	−0.219	0.146	25	−0.019	0.462
Combined (Z method)			0.043			0.021

The nonindependence of ψ and θ_s is taken into account by splitting the data set into independent halves (see Materials and Methods). Correlation coefficients (ρ) and P-values (one-tailed) are given for each species.