Mean a) number of species and b) Peilou’s functional group evenness index per 0.25 m<sup>2</sup> quadrat (± SE) across the low, mid-low, and mid intertidal zones. A. WietersEvie McQuaidChristopher PalomoGabriela PappalardoPaula A. NavarreteSergio 2012 <p>ND = no data. Scatterplots of mean species richness and evenness for functional groups. The shaded background indicates those sites within the biogeographical transition zone.</p>