1. Norwegian Polar Institute, Fram Centre, Tromsø, Norway
2. Centre for Research into Ecological and Environmental Modelling, University of St Andrews, St Andrews, Scotland, UK
3. Faculdade de Ciências da Universidade de Lisboa, Centro de Estatística e Aplicações da Universidade de Lisboa, Lisboa, Portugal
4. Natural History Museum, University of Oslo, Oslo, Norway
5. Norwegian Institute of Bioeconomy Research, Svanvik, Norway