Short CV

Education and Training
1974-1978 Undergraduate studies in Biology at the University of Zürich
1978-1985 Graduate studies at the Institute for Botany, Department of Ecology, Univ. of Innsbruck, Austria, in the group of Prof. A. Cernusca and Prof. W. Larcher, in Plant Ecology and Physiology
1987 Ph.D. thesis: "The factorial analysis of year-round CO2 and H2O gas exchange of Rhododendron ferrugineum above timberline", University of Innsbruck, Austria
* Extended CV

Professional experience
1985-1989 Research associate at the Swiss Federal Institute for Forest, Snow and Landscape Research, WSL, Switzerland
1989-1991 Staff Scientist at the Paul Scherrer Institute, Switzerland, in the research Lab for Atmosphere and Air Pollution, and visiting scientists at the Systems Ecology Research Group with Prof. J. Tenhunen, San Diego, USA
1991-present Group Leader of the research group "Ecosystem Fluxes and Stable Isotope Research Group" at Paul Scherrer Institute, Switzerland
1994-present Head of the Stable Isotope Research Facility at Paul Scherrer Institute, Switzerland

Research Interests and Expertise

As a plant ecophysiologist I use stable isotopes to study the response of plants to environmental impacts. I am particularly interested in the effects of environmental changes on C, H2O fluxes and growth patterns. The variations of stable isotope ratios as a sensitive tool are instrumental in the investigation of plant responses to environmental changes. All the more I am interested in isotopic fractionations, their drivers and mechanisms in plant metabolic processes.
  • Application of stable isotopes in plant physiological, ecosystem and environmental processes
  • Carbon and water relations on plant and ecosystem level, such as effects of elevated CO2
  • Vegetation response to a globally changing environment
  • Plant response to chronic and acute stress conditions
  • Tree physiology, its short and long term water and carbon balance

Training and teaching activities

1993-present University level teaching (Lectures and lab-courses at the Universities of Basel, Zürich, ETHZ)
  • Stabile Isotope in den Umwelt und Geowissenschaften
  • Stabile Isotope in der Ökologie
  • Stable isotopes in plant physiology and ecosystems research and
  • Ecophysiology of the terrestrial vegetation
2000-present Summer School Lecturing on Stable isotopes in environm. & plant ecological research (Portugal, Sweden, Austria, France, USA, Italy)
Supervision of MSC and PhD students together with the universities of Basel, Bern, Zürich, Lausanne, and ETH-Zürich and ETH-Lausanne
  • Ph.D. theses.
  • Diploma and master theses
  • External Examiner for numerous PhD and Master degrees in the last five years at Swiss Universities and abroad (UK, France, Sweden, Finnland, Italy)


* Authoring 152 peer-reviewed scientific papers, and 13 book contributions see Publist_SIEGWOLF-2016