Time-series of adult Acroporidae cover in four regions.

The position of each sampling location along the water quality gradient is identified by line style: dotted line—most inshore reef; dashed line—intermediate; solid line—most offshore reef. Grey lines represent Acroporidae cover at other, nearby, reefs in each region [58]. Shaded areas represent the 95% confidence interval around mean trend as estimated from generalised mixed effects models in which all reefs (including nearby reefs) are incorporated as random effects.