With the publication of this volume of Circumpolar Studies, the Arctic Centre of the University of Groningen and the contributors would like to honour Ko de Korte.
Preface VII
Hans Meltofte
BioBasis, a long-term biological monitoring programme at Zackenberg Research Station in high-arctic Northeast Greenland 1
Carlos A. Valle, Tjitte de Vries and Cecilia Hernández
Aerial kleptoparasitism by the Magnificent Frigatebird: Host size selection, social dominance, and aerodynamic constraints 17
Jan Andries van Franeker & Robert Luttik
Colour and size variation in the Northern Fulmar Fulmarus glacialis on Bear Island, Svalbard 39
Rudolf H. Drent and Jouke Prop
Barnacle goose Branta leucopsis survey on Nordenskiöldkysten, west Spitsbergen 1975–2007: breeding in relation to carrying capacity and predator impact 59
Louwrens Hacquebord
The little bird and the big whale. 1986–2006 85
Kees Lankester
Twenty years of research on baleen whales in the Antarctic 103
Louis Beyens, Pieter Ledeganck and Ivan Nijs
Testate amoebae in a changing Arctic 119
Ko de Korte
A Passion for the Pole 133
Bibliography J. (Ko) de Korte 147
