12.07.2022 00:00 Age: 83 days

Ecological restoration: Why, what, and how? - Professor Johannes Kollmann delivers a lecture within the series TUM@Freising

Category: TUM@Freising

Intensive land use, nutrient inputs, invasive species, and climate change are accelerating the losses of native species and essential ecosystem services. In a lecture within the TUM@Freising series, Johannes Kollmann, Professor of Restoration Ecology at the Technical University of Munich (TUM), will present the goals, suitable methods, and critical questions about possible limits of ecosystem renaturation on Tuesday, July 26th, 7:00 p.m. at Lindenkeller in Freising.

The TUM Chair of Restoration Ecology studies the effects of wild plant areas along traffic axes in Munich, such as here at Luise Kiesselbach-Platz. (Image: Restoration Ecology / TUM).

Prof. Kollmann heads the Chair of Restoration Ecology at the TUM School of Life Sciences (Image: Restoration Ecology / TUM).

Giving an overview of his lecture, Professor Kollmann states, “I am going to address examples from contrasting research projects, most of which have direct relevance in our region.” Topics will include how native poisonous plants as well as invasive neophytes, such as North American goldenrods, i.e. plants that do not naturally occur in our area, can be suppressed in grasslands.

Prof. Kollmann and his team are also researching ways of restoring calcareous grasslands, for example in the vicinity of the Garchinger Heide nature reserve. This vegetation is characterized by a particular richness of species.

“An important aspect of all restoration measures is the selection of the most suitable seeds,” says Kollmann. In his lecture, he will explain how scientists at the TUM School of Life Sciences deal with these challenges. Other exciting projects that are significant for current conservation are the reintroduction of rare arable plants for the ecological enhancement of the agricultural landscape, and the ecological upgrading of dikes and roadsides. “The examples within the lecture have been deliberately chosen in relation to the current ecological situation in and around Freising,” says Prof. Kollmann, and “corresponding questions from interested citizens are welcome.”

Discussion of the possibilities and limits of renaturation ecology on site

A subsequent discussion with the speaker is encouraged, moderated by Sara Leonhardt, Professor of Plant-Insect-Interactions at TUM. In this way, the citizens of Freising can discuss, for example, the strengths and weaknesses of current “Urban Green Infrastructure” in their surroundings, and suggest alternative measures. 

The lecture will take place at the “Lindenkeller” in Freising on July 26, 2022 at 7:00 p.m. There is no entrance fee, and reservations are not required.

More information:

More information about the event can be found at https://www.wzw.tum.de/index.php?id=10.

High resolution images: https://mediatum.ub.tum.de/1661608


About the speaker:

The research of Prof. Kollmann (b. 1963) focuses on the restoration of ecosystems destroyed by human activities. In particular, he investigates semi-natural reference systems, criteria for selecting plants for restoration purposes, plant-animal interactions, invasive alien species and the long-term monitoring of restored systems.

Prof. Kollmann studied biology and chemistry at the Universities of Kiel and Freiburg. He did his doctorate on the topic of vegetation ecology at the University of Freiburg. Following a postdoc stay at the University of Cambridge, he became a lecturer at the Swiss Federal Institute of Technology in Zurich. In 2000, he accepted a position at the University of Copenhagen, and in 2010 was appointed as Chair of Restoration Ecology at TUM. Prof. Kollmann is a member of several scientific associations and co-editor of a number of international environmental journals. He is regularly called on as an expert in Germany and abroad.

About the series:

The lecture series “TUM@Freising - Science explained for ALL” is organized by the Technical University of Munich in cooperation with the City of Freising.  At regular intervals, the TUM School of Life Sciences presents its research in the form of a lecture of interest to the general public.  A subsequent discussion with the audience is expressly desired at the conclusion of each lecture.  The lecture series is intended to give the public direct access to the scientific work that takes place at the Weihenstephan campus and provides a forum for the scientists to gain public input and feedback regarding their research.


Dr. Katharina Baumeister
Technical University of Munich
Corporate Communications Center
Mail: katharina.baumeister[at]tum.de
Phone: +49 8161 71 5403

Scientific contact:
Prof. Dr. Johannes Kollmann
Chair of Restoration Ecology
Mail: johannes.kollmann[at]tum.de
Phone: +49 8161 71 3498