Projects per year
Personal profile
Research interests
- Biodiversity-ecosystem functioning relationships in forest ecosystems
- Forest ecology and ecosystem-based forest management
- Response of plants and plant communities to multiple global change drivers (e.g. land-use change, climate change, nitrogen deposition)
- Plant conservation biology
Curriculum
- since 2026: Supernumerary Professorship in Conservation Biology and Fundamentals of Natural Sciences, Leuphana University Lüneburg
- 2025: Appointment as a Supernumerary Professor, Leuphana University Lüneburg
- 2021: Habilitation, Venia legend in Ecology, Leuphana University Lüneburg
- 2015-2025: Research Associate, Institute of Ecology, Leuphana University Lüneburg
- 2014-2015: Employee at the Environment Division, Municipality Ratekau
- 2009-2014: Research Associate, Institute of Natural Resource Conservation, University of Kiel
- 2009: Dr. rer. nat. (PhD) in Ecology, University of Kiel
- 2006-2009: Research Associate, Institute for Ecosystem Research, University of Kiel
- 2004-2006: Freelance worker Silva Verde GmbH, Consulting for Forest Ecology and Management
- 1998-2003: Studies in Agriculture Science, Subject Landscape Development, University of Kiel
- 1994-1996: Completed vocational training as a gardener (specialisation in organic fruit farming)
Teaching
- Vegetation ecology
- Conservation biology
- Botany
- Physics
Hands-on projects for students
- Forest biodiversity-ecosystem functioning (BEF) experiment in subtropical China (Xingangshan)
- Forest biodiversity-ecosystem functioning (BEF) experiment in tropical Panama (Sardinilla)
- TreeDi - Tree Diversity Interactions experiment in subtropical China
- The Belgian Gagea (Gagea spathacea) in Germany: Conservation strategies in response to climate change within the context of sustainable forest management
Keywords
- Ecosystems Research
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 13 Climate Action -
SDG 15 Life on Land
Fingerprint
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- 1 Similar Profiles
Research collaborations from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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FOR 5375: Enhancing the structural diversity between patches for improving multidiversity and multifunctionality in production forests - SP9: Understorey plants in space and time: Impact of enhanced forest structural heterogeneity on plant community dynamics and ecosystem stability
Fichtner, A. (Project manager, academic) & von Oheimb, G. (Project manager, academic)
01.04.26 → 31.03.30
Project: Research
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FOR 5375: Enhancing the structural diversity between patches for improving multidiversity and multifunctionality in production forests
Fichtner, A. (Project manager, academic), Müller, J. (Project manager, academic), Ammer, C. (Project manager, academic), Decker, O. (Project manager, academic), Eisenhauer, N. (Project manager, academic), Mitesser, O. (Project manager, academic), Paul, C. (Co-Projectmanager, academic), Seidel, D. (Project manager, academic) & Seidl, R. (Project manager, academic)
01.04.26 → 31.03.30
Project: Research
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DIVERSA: Climate future lab DIVERSA - Forest disturbances under climate change in Lower Saxony: Understanding drivers and impacts to enhance forest adaptability
Haider, S. (Project manager, academic) & Fichtner, A. (Project manager, academic)
01.11.24 → 30.10.30
Project: Research
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TreeDì: DFG Reserach Training Group 2324: TreeDì – Tree Diversity Interactions: The role of tree-tree interactions in local neighbourhoods in Chinese subtropical forests; P1: Spatial above- and belowground complementarity
von Oheimb, G. (Project manager, academic), Fichtner, A. (Project manager, academic), Liu, X. (Project manager, academic), Ma, K. (Project manager, academic) & Bu, W. (Project manager, academic)
01.12.22 → 31.05.27
Project: Research
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DFG Reserach Unit 5375: Enhancing the structural diversity between patches for improving multidiversity and multifunctionality in production forests - Sub Project 8: Understorey plant assemblages and primary production
Fichtner, A. (Project manager, academic)
01.06.23 → 30.05.26
Project: Research
Research output
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Canopy Definitions Shape Canopy Space Filling–Productivity Relationships: Evidence From Terrestrial Laser Scanning
Ray, T., Fichtner, A., Kunz, M., Hildebrand, M., Bruelheide, H., Potvin, C., Schnabel, F. & von Oheimb, G., 05.2026, In: Ecology and Evolution. 16, 5, 11 p., e73610.Research output: Journal contributions › Journal articles › Research › peer-review
Open Access -
Contrasting direct and indirect effects of roe deer on herb layer vegetation in gaps and closed canopies
Lettenmaier, L., Cadotte, M. W., Dittrich, S., Pierick, K., Ammer, C., Bradler, P. M., Cesarz, S., Eisenhauer, N., Fichtner, A., Kraus, D., Mallick, S., Mysterud, A., von Oheimb, G., Ristok, C. & Müller, J., 19.06.2026, In: Journal of Ecology. 114, 6, p. 1-13 13 p., e70382.Research output: Journal contributions › Journal articles › Research › peer-review
Open Access -
Effects of tree diversity and mycorrhizal type on the spatio-temporal variability of leaf litter production and quality in temperate forests
Bönisch, E., Delory, B. M., Angst, Š., Angst, G., Diane, A., Dietrich, P., Ferlian, O., Fichtner, A., Gormanns, R., Guimarães-Steinicke, C., Hättenschwiler, S., Quosh, J., Ray, T., Walter, A., Eisenhauer, N. & Beugnon, R., 04.2026, In: Journal of Ecology. 114, 4, 21 p., e70315.Research output: Journal contributions › Journal articles › Research › peer-review
Open Access -
Enhanced forest structural heterogeneity increases functional β-diversity but reduces α- and γ-diversity in soil nematodes
Schwarz, R., Bradler, P. M., Chao, A., Chuang, P.-Y., Ciobanu, M., Decker, O., Delory, B. M., Dietrich, P., Dittrich, S., Fichtner, A., Lettenmaier, L., Junginger, M., Mitesser, O., Mori, A., Müller, J., von Oheimb, G., Pierick, K., Eisenhauer, N. & Cesarz, S., 03.2026, In: Soil Biology and Biochemistry. 214, 14 p., 110078.Research output: Journal contributions › Journal articles › Research › peer-review
Open Access2 Citations (Scopus) -
Enhancing structural heterogeneity in managed forest landscapes promotes gamma but not beta diversity in understorey plant communities
Bradler, P. M., Delory, B. M., Dittrich, S., Ammer, C., Bässler, C., Cadotte, M. W., Chao, A., Chuang, P.-Y., Härdtle, W., Mitesser, O., Mori, A. S., Müller, J., Keita, N., van der Plas, F., von Oheimb, G. & Fichtner, A., 04.07.2026, In: Journal of Applied Ecology. 63, 7, p. 1-16 16 p., e70477.Research output: Journal contributions › Journal articles › Research › peer-review
Open Access
Activities
- 1 Editor of series
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Jahrbuch des Naturwissenschaftlichen Vereins für das Fürstentum Lüneburg von 1851 (Journal)
Fichtner, A. (Editor), Härdtle, W. (Editor) & Prüter, J. (Editor)
01.01.2024 → 31.12.2024Activity: Publication peer-review and editorial work › Editor of series › Research
Datasets
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Figure 3 from: Zumstein P, Bruelheide H, Fichtner A, Schuldt A, Staab M, Härdtle W, Zhou H, Assmann T (2021) What shapes ground beetle assemblages in a tree species-rich subtropical forest? In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 907-927. https://doi.org/10.3897/zookeys.1044.63803
Zumstein, P. (Creator), Bruelheide, H. (Creator), Fichtner, A. (Creator), Schuldt, A. (Creator), Staab, M. (Creator), Härdtle, W. (Creator), Zhou, H. (Creator) & Assmann, T. (Creator), ZENODO, 16.06.2021
DOI: 10.3897/zookeys.1044.63803.figure3, https://zenodo.org/record/5023380
Dataset
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Figure 2 from: Zumstein P, Bruelheide H, Fichtner A, Schuldt A, Staab M, Härdtle W, Zhou H, Assmann T (2021) What shapes ground beetle assemblages in a tree species-rich subtropical forest? In: Spence J, Casale A, Assmann T, Liebherr JК, Penev L (Eds) Systematic Zoology and Biodiversity Science: A tribute to Terry Erwin (1940-2020). ZooKeys 1044: 907-927. https://doi.org/10.3897/zookeys.1044.63803
Zumstein, P. (Creator), Bruelheide, H. (Creator), Fichtner, A. (Creator), Schuldt, A. (Creator), Staab, M. (Creator), Härdtle, W. (Creator), Zhou, H. (Creator) & Assmann, T. (Creator), ZENODO, 24.06.2021
DOI: 10.3897/zookeys.1044.63803.figure2, https://zenodo.org/record/5023378
Dataset
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Data from: Neighbour species richness and local structural variability modulate aboveground allocation patterns and crown morphology of individual trees
Kunz, M. (Creator), Fichtner, A. (Creator), Härdtle, W. (Creator), Raumonen, P. (Creator), Bruelheide, H. (Creator) & von Oheimb, G. (Creator), DRYAD, 25.10.2019
Dataset
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BETA-FOR_SP8_understory_vegetation_surveys_2016-24
Bradler, P. M. (Creator), Fichtner, A. (Creator), Schrauth, K. (Data Manager), von Oheimb, G. (Contributor), Dittrich, S. (Data Collector) & Delory, B. (Contributor), ZENODO, 06.03.2025
Dataset
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BETA-FOR_SP8_Cryptogam_Surveys_2016-25
Bradler, P. M. (Creator), Fichtner, A. (Creator), Dittrich, S. (Data Collector), von Oheimb, G. (Contributor) & Delory, B. (Contributor), ZENODO, 30.10.2025
Dataset