Emily J. Douglas, Orlando Lam‐Gordillo, Sarah F. Hailes, Andrew M. Lohrer, Vonda J. Cummings
fluxes are unchanged by the temperature treatment but effect sizes relative to controls are greatest in muddy sediments. We provide evidence for cumulative effects of heatwave duration on macrobenthic biodiversity and greenhouse gas fluxes and show that increasing muddiness (often associated with degradation) and increasing duration of heatwave events may change the carbon source/sink status of estuaries.