ACKNOWLEDGEMENTS
We thank the Natural History Museum, London for supporting fieldwork as part of JS PhD. Further support for fieldwork was provided by a Hugh Cary Gilson Memorial Award from the Freshwater Biological Association. We thank the University of Nottingham and the UKRI-GCRF Living Deltas Hub for supporting JS as a postdoctoral researcher and Universidad Católica de Colombia for supporting JS research under Semillero de Investigación HIDROIMPACTOS. We thank CIRCE under the AU ideas programme for supporting TD contribution. We thank the Lake BESS project (Natural Environment Research Council grant, NE/K015486/1 for funding sediment dating and paleoecological analysis of the Gole lake core and for supporting AB. We thank NIEA for provision of water chemistry data for the central lake (Upper Lough Erne), many landowners for site access and hospitality, Charlotte Hall, Stephen Brooks and Peter Hammond for fieldwork assistance and Laura Petetti for provision of data from the ULET2 core and for fieldwork assistance.