Abundance of sea urchin life-stages per habitat.
Values show numbers of larvae (No. m−3), settlers (No. collector−1), recruits (sizes <3 cm; ind. m−2), and adult individuals (sizes >3 cm; ind. m−2) in rocky macroalgal and seagrass habitats at each spatial scale (region, site and zone). Site abbreviations as in Fig. 1.