1. Centre d’Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, 17031 La Rochelle, France
2. Norwegian Polar Institute, Fram Centre, NO-9296 Tromsø, Norway
3. Department of Natural Resource Sciences, McGill University, Ste Anne-de-Bellevue, Quebec H9X 3 V9, Canada
4. ECOBIO (Ecosystèmes, biodiversité, évolution), UMR 6553 CNRS - Université de Rennes, 35000 Rennes, France
5. NILU − Norwegian Institute for Air Research, Fram Centre, NO-9296 Tromsø, Norway
6. NINA − Norwegian Institute for Nature Research, NO-7485 Trondheim, Norway