Gatti, G, Bianchi, CN, Parravicini, V, Rovere, A, Peirano, A, Montefalcone, M, Massa, F and Morri, C (2015) Ecological change, sliding baselines and the importance of historical data: lessons from combing observational and quantitative data on a temperate reef over 70 years. PLOS ONE, 10(2). e0118581. doi:10.1371/journal.pone.0118581