Project groups

7-2.13 | ECOWATER - GLOBAL-SCALE ASSESSMENT OF EFFECTS OF CHANGED DISCHARGE REGIMES ON THE OCCURRENCE OF BENTHIC INVERTEBRATES IN RIVERS

While previous research on impact of climate change on freshwater ecosystems focussed primarily on the effects of predicted increases in temperature, it is expected that the climate-induced hydrological changes in form of significant flow regime modifications in rivers will lead to significant changes in the biological community.

The aim of this project is, in this hitherto scarcely examined field, to derive from the combined analysis of ecological and hydrological data or model results, for the first time quantitative relationships between flow changes and their ecological consequences. The effects will be examined for the exemplary taxonomic group of macroinvertebrates. We are aiming at developing a methodological framework that will be applicable world-wide; we start with Europe because of the fairly good data availability.

Ecowater1

© Mathias Kümmerlen

Ecowater2

© Mathias Kümmerlen

Team

Prof. Dr. Peter Haase, Project advisor

Publications

Davie, J.C.S., Falloon, P.D., Kahana, R., Dankers, R., Betts, R., Portmann, F.T., Wisser, D., Clark, D.B., Ito, A., Masaki, Y., Nishina, K., Fekete, B., Tessler, Z., Wada, Y., Liu, X., Tang, Q., Hagemann, S., Stacke, T., Pavlick, R., Schaphof, S., Gosling, S.N., Franssen, W. & N.W. Arnell (2013) : Comparing projections of future changes in runoff from hydrological and biome models in ISI-MIP. - Earth System Dynamics 4: 359–374.

Kail, J., Arle, J. & S.C. Jähnig (2012) : Limiting factors and thresholds for macroinvertebrate assemblages in European rivers: Empirical evidence from three datasets on water quality, catchment urbanization, and river restoration. - Ecological Indicators 18: 63-72.

Schewe, J., Heinke, J., Gerten, D., Haddeland, I., Arnell, N.W., Clark, D.B., Dankers, R., Eisner, S., Fekete, B., Colón-González, F.J., Gosling, S.N., Kim, H., Liu, X., Masaki, Y., Portmann, F.T., Satoh, Y., Stacke, T., Tang, Q., Wada, Y., Wisser, D., Albrecht, T., Frieler, K., Piontek, F., Warszawski, L. & P. Kabat (2014) : Multimodel assessment of water scarcity under climate change. - PNAS 111: 3245-3250.

Wada, Y., Wisser, D., Eisner, S., Flörke, M., Gerten, D., Haddeland, I., Hanasaki, N., Masaki, Y., Portmann, F.T., Stacke, T., Tessler, Z. & J. Schewe (2013) : Multimodel projections and uncertainties of irrigation water demand under climate change. - Geophysical Research Letters 40: 4626-4632.