| 1973-1979 | Research Assistant, Institute for Agricultural Management, University of Natural Resources and Life Sciences, Vienna |
| 1978 | Doctorate, University of Natural Resources and Life Sciences, Vienna |
| 1979-1984 | Executive Assistant, Provincial Chamber of Agriculture of Tyrol, Innsbruck |
| 1985-1989 | Director, Provincial Chamber of Agriculture of Tyrol, Innsbruck |
| 1989-1994 | Austrian Federal Minister of Agriculture and Forestry, Vienna |
| 1995-2004 | European Commissioner for Agriculture, Rural Development and Fisheries, Brussels |
| 2005-2011 | Chairman, Ecosocial Forum Europe, Vienna |
| 2005-2015 | Chairman, RISE-Foundation, Brussels |
| 2014-2015 | Chairman of the Steering Committee of the EU scientific programme for Expo Milano 2015 |
| since 2012 | President, European Forum Alpbach, Vienna |
| since 2016 | President, Board of Trustees to the Austrian Institute of Advanced Studies (IHS), Vienna |
| 1986-1991 | Studies of Forestry, University of Natural Ressources and Life Sciences, Vienna |
| 1990-1991 | Fullbright Scholar, Forestry School, Virginia Tech, Blacksburg |
| 1991-1994 | Doctoral Student, Institute of Forest Growth, University of Natural Ressources and Life Sciences, Vienna |
| since 1992 | Lecturer, University of Natural Ressources and Life Sciences, Vienna |
| 1994 | Promotion (with distinction). University of Natural Ressources and Life Sciences, Vienna |
| 1994-1999 | University Assistant, Institute of Forest Growth, University of Natural Ressources and Life Sciences, Vienna |
| 1995 | Lecturer, Forestry School, Virginia Tech, Blacksburg |
| 1995-1996 | Schrödinger-Fellow and Lecturer, School of Forestry, Virginia Tech, Blacksburg and University of Montana, Missoula |
| 1996 | Lecturer, School of Forestry, University of Montana, Missoula |
| 1998 | Lecturer, University Ulm |
| 1999 | Habilitation, University of Natural Ressources and Life Sciences, Vienna |
| 2002 | Guest Researcher (5 months), European Forest Institute, Joensuu |
| since 2001 | Editor, Austrian Journal of Forest Sciences |
| since 2002 | Head, Expert Commitee for Forest Management, Austrian Forestry Association |
| since 2003 | Environmental Panel, Finnish Academy of Science and Letters |
| 2003-2004 | Lecturer, University of Wales, Bangor |
| 2005 | Lecturer, TEMPUS Projekts Mari State University, Yoshkar-Ola |
| 2005-2007 | Associate Editor of the Canadian Journal of Forest Research |
| since 2005 | Vice-chairman and Co-initiator of the Austrian Forest Alumni Association |
| since 2006 | Editor, Forest Ecology and Management |
| since 2007 | University Professor and Deputy Director for Forest Ecosystem Management, University of Natural Ressources and Life Sciences, Vienna |
| since 2008 | Chairman, Scientific Advsiory Board des European Forest Institute (EFI) |
| 1986-1995 | Biology Studies with specialization on Botany, University of Innsbruck |
| 1993 | Participation in the planning, description and plant selection for the botanical garden Trautmannsdorf near Meran |
| 1995 | Master's degree |
| 1995-1997 | Collaboration in the biotope mapping of the Tyrol |
| 2008-2011 | Project cooperation: Herbarium of the Institute of Botany, University of Innsbruck |
| 2009 | "Pflanzenwelt Innsbrucks" |
| 2009-2010 | "Alien Invaders" (Sparkling Science Project) |
| "Neophyte affairs" |
| since 2012 | Plant Science Education Center |
| 1987-1995 | Studies, Biology and Botany, University of Innsbruck |
| 1992-1996 | Study Assistant, Department of Systematics, Institute of Botany, University of Innsbruck |
| 1995-2000 | Doctoral Studies on Botany, University of Innsbruck |
| 1995-1997 | Assistance, biotope cartography of Tyrol |
| 1996-1997 | Contract assistant, Department of Systematics, Institute of Botany, University of Innsbruck |
| 1997-2001 | Assistant, Department of Systematics, Institute of Botany, University of Innsbruck |
| since 2006 | Assistant Professor, Institute of Botany, University of Innsbruck |
| since 2001 | Curator, Herbarium of the Institute of Botany, University of Innsbruck |
| since 2005 | Head and delegate of neophyte affairs in Tyrol |
| since 2012 | Curator, Botanical Garden Innsbruck |
