Centre d'études biologiques de Chizé (CEBC) ; CNRS
Department of Biology (Norwegian University of Science and Technology) ; Norwegian University of Science and Technology
Ornis Italica ; Ornis italica
Norvegian Polar Research Institute (NPRI) ; Norwegian Polar Research Institute
Department of Biology ; Virginia Tech
Division of Arctic Ecology (NINA) ; Norwegian Institute for Nature Research (NINA)