PhD Position in Physiological Tree Ecology University of Basel in Switzerland

The Physiological Plant Ecology group at the Department of Environmental Sciences, University of Basel, Switzerland, is offering a four-year fully funded PhD position in physiological tree ecology. This project, supported by the Swiss National Science Foundation (SNFS), aims to advance understanding of the cold-temperature limitations on tree growth and distribution, focusing on the hydraulic constraints induced by restricted root water uptake at low soil temperatures. The research will be conducted in collaboration with the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL).

The project investigates the physiological impact and ecological significance of low root temperatures for hydraulic relations and growth in common European temperate tree species. The PhD candidate will plan and execute experiments with seedlings of various European tree species to identify mechanisms and consequences of cold-temperature restrictions on root water uptake. Key methods include stable isotope labelling, sap flow measurements, and assessment of aquaporin-facilitated root water transport. Fieldwork will involve in situ measurements of soil and air temperatures across elevational transects in the Swiss Alps, relating hydraulic cold thresholds to natural upper elevational limits of tree species. The candidate will also contribute to field measurements at the long-term alpine treeline research site Stillberg in Davos, Switzerland, and participate in teaching within the research group.

Applicants should hold a MSc degree in botany, ecology, forest science, environmental science or related fields, with basic knowledge of plant physiology. Experience with plant ecophysiological methods and a basic understanding of electrical engineering are assets. Candidates must be able to conduct greenhouse experiments with tree seedlings, perform statistical analyses with R, and be willing to undertake fieldwork in subalpine terrain over extended periods. Strong communication and organizational skills, teamwork, and commitment to an inclusive workplace are essential. Very good written and spoken English is mandatory.

The position offers a dynamic research environment with excellent infrastructure in the international and interdisciplinary Department of Environmental Sciences. The University of Basel, the oldest university in Switzerland, is located at the border between Switzerland, France, and Germany. The PhD school provides courses to improve hard and soft skills and career development opportunities. Internationally competitive salaries and social benefits are provided according to University of Basel rules. The project is fully funded for four years by SNFS.

To apply, submit your application via the online platform, including a motivation letter (max. 1 page), CV, MSc degree copy, and names/contact details of 3 references. Applications from women and underrepresented groups in academic research are especially encouraged. Review of applications begins May 11, 2025 and continues until the position is filled. Only online applications through the recruiting platform will be considered. For further questions, contact Prof. Dr. Günter Hoch ([email protected]) and visit the Physiological Plant Ecology research group website.