Table 2.

Results of phylogenetic generalised least squares (PGLS) models for the relationship between biomic specialisation index (BSI) and detrended diet richness (dDR), diet diversity (DD) and detrended maximum diet diversity (dMDD) at class (c) and order (o) taxonomic ranks of Falconidae species. Data on raw models and after the inclusion of range size of the distribution area as a covariate are shown. R² and F values correspond to the whole model and estimate, t and p values to the independent variable. The effect of range size was significant (all p < 0.001) in all models.

Effect	R2	λ	Estimate	SE	t	F	p	n (d.f.)
dDRc	0.01	<0.001	0.039	0.01	0.88	0.76	0.385	61 (2,59)
dDRc + Range size	0.36	<0.001	0.035	0.03	0.97	17.57	0.334	61 (3,58)
dDRo	0.12	<0.001	0.161	0.05	3.04	9.24	0.004	61 (2,59)
dDRo + Range size	0.41	<0.001	0.152	0.04	3.52	22.23	<0.001	61 (3,58)
DDc	0.02	<0.001	0.412	1.29	0.32	0.10	0.751	33 (2,31)
DDc + Range size	0.35	<0.001	1.701	1.07	1.59	9.46	0.123	33 (3,30)
DDo	0.09	<0.001	2.036	0.99	2.04	4.16	0.050	32 (2,30)
DDo + Range size	0.42	<0.001	2.013	0.80	2.25	12.12	0.018	32 (3,29)
dMDDc	0.02	<0.001	0.602	1.22	0.49	0.25	0.625	33 (2,31)
dMDDc + Range size	0.39	<0.001	1.753	0.99	1.75	9.88	0.089	33 (3,30)
dMDDo	0.05	<0.001	1.746	1.09	1.59	2.53	0.122	32 (2,30)
dMDDo + Range size	0.37	<0.001	1.704	0.89	1.91	10.09	0.066	32 (3,29)