Giulia Faucher, University Degli Studi di Milano, Milan, Italy, Kathrin Wuttig, Antarctic Climate & Ecosystems Cooperative Research Centre (ACE CRC), University of Tasmania, Hobart, TAS, Australia, Chiara Bettoni, University degli Studi di Milano, Milan, Italy, Elisabetta Erba, Univ of Milan, Dept. Earth Sciences, Milan, Italy, Florian Koch, Hochschule Bremerhaven, An der Karlstadt 8, 27568 Bremerhaven, Germany, Scarlett Trimborn, Alfred Wegener Institut Helmholtz Zentrum für Polar und Meeresforschung, Am Handelshafen 12, 27570 Bremerhaven, Germany, Christian Völkner, Alfred Wegener Institut Helmholtz Zentrum für Polar und Meeresforschung, Am Handelshafen 12, Germany and Linn Hoffmann, University of Otago, Department of Botany, New Zealand