Institution: | (1) WPA/BirdLife/IUCN/SSC Grouse Specialist Group, Department of Wildlife Ecology and Management, University of Freiburg, 79085 Freiburg, Germany;(2) Ecology Unit, Department of B.O.S., University of Oviedo, Campus del Cristo, 33071 Oviedo, Spain;(3) Centre for Ecology and Conservation, University of Exeter in Cornwall, Tremough, Penryn, TR10 9EZ, UK;(4) Estación Biológica de Do?ana (CSIC), Ecology Unit, Department of B.O.S., University of Oviedo, Campus del Cristo, 33071 Oviedo, Spain |