Research

The research focus of the Chair of Nature Conservation and Landscape Ecology includes biodiversity and ecosystem functions, which are affected by macroorganisms such as bees and wasps, as well as small mammals and birds. Our goal is to understand the effects of environmental factors on these macroorganisms and to investigate how pesticide use, land-use change, and climate change impact these relationships.
We also study measures that promote biodiversity and support the conservation of pollinating insects in agricultural landscapes and forests. Our focus lies on the observation and analysis of hedgerows, flower strips, agroforestry and mixed cropping systems, different mowing regimes, as well as the role of deadwood in forest ecosystems.
We work at the interface between science and practice, placing particular emphasis on close collaboration with farmers and other stakeholders. Through joint research questions and continuous exchange, we ensure that our work is practical, relevant, and effective. Citizen science is also a component of our work and enables the collection and use of data and knowledge in collaboration with interested citizens.
Research infrastructure
The Chair of Nature Conservation and Landscape Ecology conducts experiments in the laboratory, in semi-field and field studies (gardens, fields and woodland). In particular, we investigate plant-pollinator interactions as well as the effects of pesticides and restoration measures in the agricultural landscape. In addition, we characterise communities of insects, birds and small mammals and study their population dynamics in the open landscape using GIS-based landscape surveys and DNA metabarcoding.


About us
In addition to research and teaching, we are also active in outreach and policy advice.
Our teaching programme
In our courses we combine interactive lectures, practical courses, exercises and excursions.
The team
Our diverse team is currently working on various national and international projects.
New publications
- Bishop, G.A., Kleijn, D., …, Fornoff, F., …, Klein, A.M., …, von Königslöw, V., … & Fijen, T.P.M. (2025): Critical habitat thresholds for effective pollinator conservation in agricultural landscapes. Science 389: 1314–1319. https://doi.org/10.1126/science.adr2146
- Klein, A.M. & Fornoff, F. (2025): Praxishandbuch Nutzpflanzenbestäubung: Ertragssteigerung durch Förderung der Biodiversität. Haupt Verlag, Bern, Schweiz. https://www.haupt.ch/buecher/natur-garten/praxishandbuch-nutzpflanzenbestaeubung.html?cur=1
- Martini, M., Kaul, E., Miller, R., Gibbs, J. & Bobiwash, K. (2025): Non-native plants in road verges attract pollinators despite associated declines in native flowers. Global Ecology and Conservation 58: e03489. https://doi.org/10.1016/j.gecco.2025.e03489
- Tourbez, C., Gekière, A., Bottero, I., Chauzat, M.P., Cini, E., Corvucci, F., de Miranda, J.R., Di Prisco, G., Dominik, C., Grillenzoni, F.V., Hodge, S., Kiljanek, T., Knauer, A., Laurent, M., MartÃnez-López, V., Raimets, R., Schwarz, J.M., Senapathi, D., Serra, G., Tamburini, G., Wintermantel, D., Brown, M.J.F., Albrecht, M., Costa, C., De la Rúa, P., Klein, A.M., Mänd, M., Potts, S.G., Rundlöf, M., Schweiger, O., Stout, J.C. & Michez, D. (2025): Variation in the pollen diet of managed bee species across European agroecosystems. Agriculture, Ecosystems & Environment 383: 109518. https://doi.org/10.1016/j.agee.2025.109518
- Fardiansah, R., Rehling, F., Rappa, N., Dormann, C.F. & Klein, A.M. (2025): Host identity, nest quality, and parasitism strategy: influences on body size variation in parasitoid bees and wasps. Oikos: e011052. https://doi.org/10.1111/oik.11052
Finalised projects (selection)
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ConFoBi
DFG-Graduiertenkolleg “Conservation of Forest Biodiversity in Multiple-Use Landscapes of Central Europe”
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NBiomasseBW
Project as part of the Baden-Württemberg state strategy for a sustainable bioeconomy
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INTEGRA
Integration of habitat structures
in agricultural areas to promote pollinator insects
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Faktencheck Artenvielfalt
BMBF research initiative for the preservation of biodiversity(FEdA)
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BEATLE
Evaluation of agricultural and food policy transformation paths towards a biodiversity-friendly land use and food system
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PoshBee
Pan-European assessment, monitoring, and mitigation of stressors on the health of bees
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NutriB²
Nutrition as critical link between Biodiversity and Bee health
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EcoFruit
Managing ecosystem services for fruit production in different European climates
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Jena-Experiment
Exploring mechanisms underlying the relationship between biodiversity and ecosystem functioning (FOR 1451)
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Super-B
Stustainable pollination in Europe