| Education |
| 2003 | D.Sc. (Title: The Greenland White-fronted Goose Anser albifrons flavirostris. The annual cycle of a migratory herbivore on the European continental fringe), University of Copenhagen, Denmark. |
| 1984 | Ph.D. (Title: An investigation of the hydrology of Cors Fochno National Nature Reserve), University College of Wales, Aberystwyth, United Kingdom. |
| 1977 | B.Sc. Environmental Biology (Botany/Zoology Joint Honours), University College of Wales, Aberystwyth, United Kingdom |
| Employments |
| 2012 ·· | Professor of Waterbird Ecology, Aarhus University |
| 2003 ·· 2011 | Professor of Wetland Ecology, NERI, Kalø, Denmark. |
| 1992 ·· 2003 | Senior Research Biologist, NERI, Kalø, Denmark |
| 1988 ·· 1992 | Deputy Head/Acting Head of Research, The Wildfowl & Wetlands Trust, Slimbridge, UK |
| 1986 ·· 1988 | Senior Research Officer, The Wildfowl & Wetlands Trust, Slimbridge, UK |
| 1985 ·· 1986 | Assistant Regional Officer for Inverness, Nature Conservancy Council, Scotland, UK |
| 1977 ·· 1984 | Scientific Officer, Ornithological and botanical surveys, Nature Conservancy Council, Wales, UK |
