(Dept. 2) Community and Ecosystem Ecology

Inland waters support exceptional biodiversity, are characterised by intense metabolism of matter, and provide important ecosystem services. However, freshwater ecosystems face high and increasing pressures from multiple stressors. The Department of Community and Ecosystem Ecology conducts research in both standing and running waters studying the response of freshwater communities and ecosystems to global change. Ultimately, we aim to advance our mechanistic understanding of the structure and functioning of inland waters as a basis for their sustainable management. Specifically, we focus on:

  • Response of freshwater communities and diversity to changing environments
  • Interactions between freshwater communities, their environment and ecosystem functioning
  • Spatial and temporal freshwater biodiversity patterns
  • Sustainable management of freshwater communities and ecosystems

We develop and analyse the long-term monitoring data of Lake Müggelsee and Spree as well as from other inland waters and their catchments, employ spatially explicit statistical and deterministic modelling approaches, and conduct lab and field experiments. Our department additionally encompasses research on the global effects of climate change and biodiversity and develops new theoretical concepts on that.

Department members

Selected publications

December 2025
Nature Communications. - 16(2025), Art. 11146

Current protected areas provide limited benefits for European river biodiversity

James S. Sinclair; Rachel Stubbington; Ellen A. R. Welti; Jukka Aroviita; Nathan J. Baker; Miguel Cañedo-Argüelles; Zoltán Csabai; David Cunillera-Montcusí; Sami Domisch; Martial Ferréol; Mathieu Floury; Marie Anne Eurie Forio; Peter L. M. Goethals; Alexia M. González-Ferreras; Kaisa-Leena Huttunen; Richard K. Johnson; Lenka Kuglerová; Aitor Larrañaga; Timo Muotka; Riku Paavola; Petr Pařil; Jes J. Rasmussen; Ralf B. Schäfer; Rudy Vannevel; Gábor Várbíró; Martin Wilkes; Peter Haase

Protected areas are meant to preserve endangered species and stabilize ecosystems. But for many European rivers, this protection falls short. The research team examined the condition of rivers at over 1,700 locations in ten European countries across a period of almost four decades. The result: Existing protected areas have only brought about measurable improvements in a limited subset of rivers.

December 2025
Limnology and Oceanography. - XX(202X)X, XX-XX

Flow variability and macroinvertebrates jointly regulate stream periphyton and metabolism: Insights from experimental stream mesocosms

Flavia Tromboni; Carolina Jativa; Carina Seitz; Alain Maasri; Silvia Mohr; Hans-Peter Grossart; Giulia Grandi; Enrico Bertuzzo; Sonja C. Jähnig; Clara Mendoza-Lera; Andreas Lorke; Marco Cantonati; Anna Lupon; Susana Bernal

In stream mesocosm experiments the authors tested how reduced flow and a sequence of controlled flushing events, with or without macroinvertebrates, affect periphyton community composition, algal biovolume, and ecosystem metabolism. Flow variability and macroinvertebrates control periphyton structure, metabolism, and carbon cycling, with macroinvertebrates stabilising responses to disturbance.

Cover_Scientific_Data
August 2025
Scientific Data. - 12(2025), Art. 1488

Global thermal tolerance compilation for freshwater invertebrates and fish

Helena S. Bayat; Fengzhi He; Graciela Medina Madariaga; Camilo Escobar-Sierra; Sebastian Prati; Kristin Peters; Jonathan F. Jupke; Jurg W. Spaak; Alessandro Manfrin; Noel P. D. Juvigny-Khenafou; Xing Chen; Ralf B. Schäfer

The authors present the first comprehensive and openly accessible compilation of freshwater species’ thermal tolerance, covering over 900 invertebrates and fish, and including English and non-English studies to expand representation and reduce biases.

Journal_of_Environmental_Management
May 2025
Journal of Environmental Management. - 386(2025), Art. 125663

Towards transformative change for biodiversity: What can we learn from case studies in Germany?

Vera Schreiner; Marion Mehring; Janina Kleemann; Jennifer Hauck; Stefan Knauß; Christian Poßer; Christian Schleyer; Thomas Potthast; Karsten Grunewald; Christine Fürst; Jennifer Müller; Christian Albert; Monika Egerer; Dagmar Haase; Sonja C. Jähnig; Josef Kaiser; Tanja GM. Sanders; Pia Sommer; Thilo Wellmann; Peter Keil; Heidi Wittmer

The authors analysed 22 case studies of biodiversity-enhancing societal processes and projects in Germany to identify barriers and success factors, as well as features that support transformative change towards sustainability and the mainstreaming of biodiversity. They identified 16 features that support transformative change for biodiversity, many relevant beyond Germany. 

Methods in Ecology and Evolution
March 2025
Methods in Ecology and Evolution. - 16(2025)4, 775-785

A population Monte Carlo model for underwater acoustic telemetry positioning in reflective environments

James Adam Campbell; Samuel Joseph Shry; Petter Lundberg; Olle Calles; Franz Hölker

In study areas near acoustically reflective surfaces, reflected transmissions may cause large detection outliers that reduce the accuracy of telemetry positioning. A novel time-of-arrival model is presented. This allows for positioning of aquatic animal in acoustically challenging study areas. It provides good measures of positioning uncertainty and is useful for fine-scale telemetry.