Correlations (Pearson) between a) mean species richness and local biomass and b) mean species richness and within-site spatial variation (coefficient of variation, CV, among quadrats) of biomass across the 20 sites surveyed for the low, mid-low, and mid intertidal zones.

<p>Bold values indicate significance at α = 0.05.</p>*<p>p<0.05</p>**<p>p<0.01</p>***<p>p<0.001.</p><p>NA indicates where the functional group was too scarce in a given tidal level for meaningful correlations.