Fig. 4: Growth and thermal tolerance of corals from different lineages based on analysis of individual coral cores.
From: Palau’s warmest reefs harbor thermally tolerant corals that thrive across different habitats

In a–c, line segments and asterisks denote statistically significant differences (p < 0.05) between groups based on post hoc Tukey tests. An asterisk over a single group denotes that group is significantly different from all others. a Boxplots of mean skeletal density of samples from each lineage. The Red (RD) lineage had lower skeletal density than all other lineages (ANOVA, F = 10.73, df = 3, p < 0.001). b Boxplots of mean calcification rate of samples from each lineage. RD showed lower calcification rates than the DB and LB lineages (ANOVA, F = 5.36, df = 3, p < 0.05). c Boxplots of mean extension rate of samples from each lineage. RD showed lower extension rates than the DB and LB lineages (ANOVA, F = 2.97, df = 3, p < 0.05). d Stress band prevalence by lineage in 1998. Proportion of stress differed significantly among lineages with DB lineage showing higher prevalence than all other lineages (X2 = 12.349, df = 3, p value < 0.05). Note that N values in d are lower than in a–c as not all cores extended back to 1998 (see Methods for further details).