Seal element of the university of freiburg in the shape of a clover
  • Gehörnte Mauerbiene (Osmia cornuta) auf einer Blüte

Faculty of Environment and Natural Resources

Chair of Nature Conservation and Landscape Ecology

Abkürzung der Fakultät für Umwelt und Natürliche Ressourcen "unr" in der Farbe sand auf grünem, kreisförmigen Hintergrund

The research of the Chair of Nature Conservation and Landscape Ecology focuses on the relationships between biodiversity and ecosystem functions which are affected by bees, wasps, ants, small mammals, and birds. The focus is on interactions such as pollination, herbivory, seed dispersal, and the natural control of insect populations. We study the effects of environmental factors like pesticide use, land-use change, and climate change on these natural interactions. Another central area of our research is developing and evaluating measures to protect biodiversity in agricultural landscapes and forests. To this end, we conduct experiments in the laboratory and in the field, both in regional and global contexts.

Our team

One team, many perspectives. Internationally connected, committed, and full of ideas.

Information on wild bee protection

Help protect wild bees – find out more and get involved.

Job openings

Career opportunities in an environment that combines scientific excellence with societal relevance.

News

Award

Merian poster award

Our doctoral student, Massimo Martini, received the Merian Award (3rd place for the best poster) at the European Conference of Tropical Ecology 2026. The award-winning poster was titled “Cavity-nesting Hymenoptera prefer standing over laying deadwood for nest construction in forests”.

Publication

Policy brief “Restoring pollinators in Europe”

Our policy brief from the EU project RestPoll, provides recommendations on which measures are most effective in promoting pollinators, such as wild bees, in Europe. The results should help EU member states to implement their nature restoration plans under the EU Nature Restoration Regulation (NRR).

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Outreach

Lecture at NABU Bad Vilbel

On 20 February 2026, at 7:30 p.m., Alexandra-Maria Klein gave a lecture entitled “A world without insects? – The change in biodiversity using the example of (wild) bees” at NABU in Bad Vilbel. The lecture focused on the dramatic decline in insect biomass, its consequences for biodiversity, agriculture, and food security, as well as possible ways out of the crisis.

Research

We investigate biodiversity and ecosystem functions in national and international projects.

Teaching

Our teaching combines sound theoretical foundations with practical exercises.

Publications

Our team’s publications provide insight into our research findings and methods.

RestPoll – Horizon Europe project for restoring pollinator habitats

To counter the decline of pollinators and the resulting loss of pollination services, our pan-European project “RestPoll – Restoring pollinator habitats across European agricultural landscapes based on multi-actor participatory approaches” aims to permanently restore pollinator habitats in Europe and enhance their connectivity.