Linking coral river runoff proxies with climate variability, hydrology and land-use in Madagascar catchments

► We derived river runoff proxies from coral cores adjacent two coastal watersheds in Madagascar. ► We tested for relationships with coastal climate, hydrology, land use and population growth. ► Precipitation, river discharge, and sediment load were predictors of reef sedimentation in the north east region. ► ENSO and air temperature were predictors of reef sedimentation in the south west region.