Current Activities

24th and 25th of January 2026 DNA macht Schule at the Grüne Woche in Berlin

Our citizen science project ‘DNA macht Schule’ was presented at the ‘Grüne Woche’ in Berlin. Visitors learned how environmental DNA is used to assess biodiversity in flowing waters. We presented our school program in discussions with children, teenagers, teachers, and experts. In an interactive quiz, visitors discovered exciting stories about different species in our rivers and streams. Many thanks to the BMUKN for the invitation and the opportunity to present our project!

Photos @ Instagram

18 December 2025 & 28 January 2026 Dr. Iris is in da house

Iris has successfully defended her PhD thesis titled:
"Navigating complexity: Exploring the untapped potential of mesocosm experiments for multiple-stressor research"

and receicved her PhD Degree

December 2025 Recommendations on DNA metabarcoding standardisation are now available in English

Recommendations from a workshop hosted by VDI and BfN, coordinated by Florian and colleagues, outline how DNA metabarcoding can be standardized for official biodiversity monitoring. Researchers, authorities, and practitioners jointly identified key challenges across sampling, laboratory workflows, and data handling.

The resulting roadmap defines minimum technical requirements, highlights the need for harmonized terminology and robust reference databases, and proposes a structured quality management framework to support routine application in conservation and environmental protection.

Read Them Here

10-11 Decemebr 2025 A Productive Visit and Talk by Prof. Feilong Li

It was a true pleasure to welcome our colleague Prof. Feilong Li to our group and discuss our ongoing work on multiple stressors in rivers, (e)DNA based biomonitoring methods, automation in Germany (University of Duisburg-Essen), China (Guangdong University of Technology and Nanjing University), Switzerland (University of Zurich and Eawag). We share many interests and lots of synergies exist to extend for the sake of our planet.

Research Themes

© T. Macher

Multiple Stressor Research

Our working group analyzes the effects of single and multiple stress factors on aquatic ecosystems.

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© R. Schütz

Biodiversity Monitoring

We are developing modern genetic tools to assess aquatic biodiversity at much higher resolution.

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© T. Macher

Genomic Methods Development

One of our focuses is the development of state-of-the-art genomic techniques for the standardized recording of biodiversity.

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Population Genetics

We use molecular markers to analyze the genetic diversity and fragmentation of invertebrate populations in rivers.

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Recent Publications

  • Rehsen, Philipp M.; Honka, Mia S.; Impiö, Mikko; Madge Pimentel, Iris; Leese, Florian; Beermann, Arne
    Improving taxonomic resolution, biomass and abundance assessments of aquatic invertebrates by combining imaging and DNA megabarcoding
    In: PeerJ, Jg. 14, 2026, e20501
  • Burgazzi, Gemma; Juvigny-Khenafou, Noël P. D.; Schreiner, Verena C.; Manfrin, Alessandro; Jupke, Jonathan; Piggott, Jeremy; Harvey, Eric; Terui, Akira; Leese, Florian; Schäfer, Ralf
    Multiple stressors in river networks : local and downstream effects on freshwater macroinvertebrates
    In: Ecography, Jg. 2026, 2026, Nr. 1, e07758
  • Sander, Mandy; Beermann, Arne J.; Buchner, Dominik; Weiss, Martina; Werner, Marie-Thérése; Leese, Florian
    Capture—Incubate—Release : An Animal-Friendly Approach to Assess Local Aquatic Macroinvertebrate Species Diversity Through Environmental DNA Metabarcoding
    In: Environmental DNA, Jg. 7, 2025, Nr. 3, e70112
  • Sinclair, James S.; Buchner, Dominik; Gessner, Mark O.; Müller, Jörg; Pauls, Steffen U.; Stoll, Stefan; Welti, Ellen A. R.; Bässler, Claus; Buse, Jörn; Dziock, Frank; Enss, Julian; Hörren, Thomas; Künast, Robert; Li, Yuanheng; Marten, Andreas; Morkel, Carsten; Richter, Ronny; Seibold, Sebastian; Sorg, Martin; Twietmeyer, Sönke; Weis, Dirk; Weisser, Wolfgang; Wiggering, Benedikt; Wilmking, Martin; Zotz, Gerhard; Frenzel, Mark; Leese, Florian; Haase, Peter
    Effects of land cover and protected areas on flying insect diversity
    In: Conservation Biology, Jg. 39, 2025, Nr. 4, e14425
  • Deep, Aman; Sieber, Guido; Boden, Lisa; David, Gwendoline M.; Baikova, Daria; Buchner, Dominik; Starke, Jörn; Stach, Tom L.; Reinders, Torben; Hadžiomerović, Una; Beszteri, Sára; Probst, Alexander J.; Boenigk, Jens; Beisser, Daniela
    A metatranscriptomic exploration of fungal and bacterial contributions to allochthonous leaf litter decomposition in the streambed
    In: PeerJ, Jg. 13, 2025, Nr. 4, e19120