Marc (Senior Scientist Kery Swiss Ornithological Institute Basel Switzerland),Kenneth F. (Research Scientist Kellner State University of New York College of Environmental Science and Forestry NY USA)
（1）
Oliva, Marc (Research Scientist, Department of Geography, University of Barcelona, Spain),Palacios, David (Professor, Complutense University of Madrid, Spain),Fernandez, Jose Maria (Centro de Estudos
（1）
Oliva, Marc (Research Scientist, Department of Geography, University of Barcelona, Spain),Ruiz Fernandez, Jesus (Assistant Professor, Department of Geography, University of Oviedo, Spain)
（1）
