Persönlicher Status und Werkzeuge


Dr. Thomas Wagner

Lehrstuhl für Renaturierungsökologie

Emil-Ramann-Strasse 6
85354 Freising

Telefon/ Phone   +49 8161 712611
Fax                    +49 8161 714143

email                  wagner[at]

Curriculum vitae

2012 -

Wissenschaftlicher Mitarbeiter TU München, Lehrstuhl für Renaturierungsökologie

2000 - 2011

Wissenschaftlicher Leiter TU München, WOS

1999 - 2000

Leiter Geschäftsbereich Angewandte Ökologie
Dr. Rietzler & Heidrich GmbH, Nürnberg


Wissenschaftlicher Mitarbeiter TU-München, Limnologische Station


Postgraduate Course, Specialist Spatial Analysis and Modelling, University Stellenbosch, SouthernGIS, Cape Nature, National Botanical Institute

1993 - 1996

Wissenschaftlicher Mitarbeiter TU München, Lehrstuhl für Botanik

1988 - 1992

Studium der Biologie, Schwerpunkt Botanik/ Ökologie, TU München

Research Interests:

Ecology and Restoration of Arid Ecosystems - Encroachment in African Grasslands

Encroachment, the sudden and pronounced increase of a native species in its natural habitat or community is a serious threat to grassland habitats worldwide.
In the affected areas, plant diversity decreases, available pasture for livestock and cattle is reduced and soil conditions and water household are permanently altered. Severe losses in pastoral production and massive expenses for counter measures are often the consequence.
Although the results of different encroachment events are usually similar, the processes and drivers involved can vary considerably depending on the species, environmental conditions and land use involved.
While encroachment processes can be observed in most regions of the world, the arid savannas and grasslands of Africa are particularly affected with significant economic consequences and a threat to peoples livelihood.
Despite the growing attention and an increased effort in research connected to this topic, many aspects of encroachment in Southern Africa are not yet fully understood.
My research aims to better understand the principles of encroachment processes and grass-legume-competition in African arid grasslands and savannas and to develop means and measures to avoid, fight and effectively manage them.

Focal points of my research are:

  • Identification and Description of Processes and Drivers
  • Individual and Processes Based Modelling
  •  Development of Tools for Decision Support and Management

A comprehensive and detailed understanding of the underlying processes of encroachment, considering competitive balance, environmental conditions, dispersion and other biological factors together with suitable model plants will provide models to local situations and allow to predict encroachment and its response to a changing climate and environment-

These results will lead to powerful and easy to use analyzing procedures, databases and decision support systems for the use in the field, that will allow to avoid encroachment where possible, efficiently monitor encroachment when it occurs and plan effective and timely counter measures where necessary.