Figure 4

Number of exosymbiotic species among the five key species co-occurring within coral colonies: (a) adults of Pocillopora damicornis type β from Reunion Island (RI) and from New Caledonia (NC), and of P. damicornis type α from New Caledonia (NC), and (b) juveniles of P. damicornis type β from Reunion Island (RI) and type α from New Caledonia (NC). Black circles linked with a black line represent the observed data, while grey rectangles represent the 95% confidence intervals estimated from 10,000 randomly simulated communities generated with the unconstrained null model M1 and the ‘frequency’ constrained model M2 (see methods for a description of the models).