Fig 1. Maximum likelihood estimated proportional change in polyp density after six weeks plotted as a function of temperature and salinity from best-fit model.

Model output describes proportional change in polyp density for different temperature and salinity values as described in Eq 1. Solid black line represents values of 1, where polyp density is expected to remain constant. The area encompassed by the dashed line indicates sea surface temperature and salinity levels that commonly occur within the waters of the Great Barrier Reef [44,45]. Models were fit to data collected from a matrix of eight temperature and ten salinity treatments, each replicated six times. Summary statistics describing the data used to generate the model are provided in Supporting Information (S1 Table).