Global change effects on river ecosystems

Research group of Sonja Jähnig
Sonjas fleißige Arbeitsgruppe. | Foto: Judith Mahnkopf / IGB

Sonja's diligent research group. | Photo: Judith Mahnkopf / IGB

We are a diverse group of freshwater scientists whose interests span hydrology, community ecology, conservation biology, ecological & habitat modelling and biogeography, but with the common goal of investigating how global change impacts river ecosystems. Global change is expected to impact freshwater ecosystems severely by e.g. increased frequency and severity of floods and droughts. Streams and rivers are seen as particularly vulnerable to global change and the species inhabiting them are among the most threatened worldwide.

We study groups of organisms from 5mm benthic macro-invertebrates to 30kg+ freshwater megafauna and the scope of our analyses range from river reaches and catchments, to continental networks and global scale impacts.

Our research has four main components:

  1. Integrating flow parameters into stream analyses where we: analyse hydrological preferences and tolerances of taxa, simulate past, current and future flow conditions, integrate river characteristics into habitat models, and assess global change impacts on fish and invertebrate distribution.
  2. Evaluating freshwater megafauna diversity on a global scale, and potential conflicts associated with human activities.
  3. Assessing current and future status of freshwater biodiversity under potential global change scenarios on different spatial scales.
  4. Community ecology and trait-based research spanning multiple biological and spatial scales.

Visit www.glance-projects.eu for further information. 

Group members

Sonja Jähnig

Research group leader
Working group
Global change effects on river ecosystems

Fengzhi He

Scientific staff
Working group
Global change effects on river ecosystems

Alain Maasri

Scientific staff
Working group
Global change effects on river ecosystems

Jens Kiesel

Postdoc
Working group
Global change effects on river ecosystems

Katie Irving

Doctoral student
Working group
Global change effects on river ecosystems

Martin Friedrichs

Doctoral student
Working group
Global change effects on river ecosystems

Annett Wetzig

Technician/Lab operator
Working group
Global change effects on river ecosystems
River system modelling

Vanessa Bremerich

Technician/Lab operator
Working group
Global change effects on river ecosystems
River system modelling

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