Author Affiliations +
Ruben C. Fijn
Bureau Waardenburg, Consultants for Ecology and Environment, P.O. Box 365, 4100 AJ Culemborg, The Netherlands
Derick Hiemstra
Koartwald 13, 9283 TW Surhuizum, The Netherlands
Richard A. Phillips
British Antarctic Survey, Natural Environment Research Council, Madingley Road, High Cross, Cambridge, Cambridgeshire, CB3 0ET, United Kingdom
Jan van der Winden
Bureau Waardenburg, Consultants for Ecology and Environment, P.O. Box 365, 4100 AJ Culemborg, The Netherlands