1. Iris E. Hendriks is an associated scientist at the University of the Balearic Islands, Spain, and management associate of the EU Network of Excellence MarBEF (Marine Biodiversity and Ecosystem Functioning).
2. Carlos M. Duarte is Research Professor at the Spanish Council for Scientific Research, Spanish National Research Counsel (CSIC), Spain, and theme leader of the EU Network of Excellence MarBEF.
3. Carlo H. R. Heip is director of the Centre for Estuarine and Marine Ecology of the Netherlands Institute of Ecology in Yerseke, Netherlands, and coordinator of the EU Network of Excellence MarBEF.