Figure 5
Changes in habitat complexity (mean ± SE), communities, and species richness with increasing pCO2 for intertidal (a–c) and subtidal (d–f) habitats. (a,d) A significant difference between pCO2 groups is indicated with a different letter (Kruskal-Wallis with Bonferroni-adjusted Fisher’s least significant difference). (b,e) The change in communities are illustrated by an nMDS plot based on Bray Curtis distance. The colour of each point represents the pCO2: green: ‘300 µatm’, black: ‘400 µatm’, light blue: ‘1100 µatm’ and orange: ‘1800 µatm’ for the intertidal and green: ‘300 µatm’, black: ‘400 µatm’, blue: ‘700 µatm’, red: ‘900 µatm’ and pink: ‘1500 µatm’ for the subtidal. Ellipses represent the 95% interval confidence. (c,f) Algal (blue) and faunal (red) species richness are shown with darker colours used for species only found in that site, and lighter shades for species that overlap across two sites. For the subtidal, the species overlap are graduated (from darkest to lightest) in the following order: 300–400 µatm, 300–900 µatm and 400–900 µatm (no species were common to all three sites).
