Table 2.

Summary of main effects from (generalised) linear models ((G)LMs) with diversity measures (α-diversity) as responses, and shore zone, presence of rock pool (RP), and their interaction as predictors

GLMs	Deviance	Res. deviance	F value	p value
Species richness
Zone	96.333	105.873	40.618	< 0.001
RP	13.117	92.756	11.061	< 0.001
Zone * RP	0.006	92.749	0.002	0.99
Emergent group richness
Zone	14.373	33.648	18.411	< 0.001
RP	1.922	31.725	4.924	< 0.05
Zone * RP	0.124	31.601	0.159	0.85

LMs	Sum of squares	Mean SSq	F value	p value
Functional richness
Zone	70,355	35,177	39.325	< 0.001
RP	11,249	11,249	12.575	< 0.001
Zone * RP	2327	1164	1.301	0.270
Functional dispersion
Zone	94.670	47.340	13.955	< 0.001
RP	38.390	38.390	11.317	0.001
Zone * RP	2.470	1.240	0.365	0.69
SES Functional richness
Zone	1.590	0.795	1.211	0.300
RP	0.110	0.115	0.175	0.680
Zone * RP	0.270	0.133	0.202	0.820
SES functional dispersion
Zone	4.778	2.389	6.733	0.002
RP	2.546	2.546	7.174	0.009
Zone * RP	1.330	0.665	1.875	0.160

For species and emergent group richness we used generalised linear models (family: quasipoisson); for functional richness and dispersion we used general linear models. Significant values are in bold

RPa RP absent, RPp  RP present, SES standardised effect size