Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Down scaling of climate change scenarii to river basin level : A transdisciplinary methodology applied to Evrotas river basin, Greece
Ker Rault, Philippe A. ; Koundouri, Phoebe ; Akinsete, Ebun ; Ludwig, Ralf ; Huber-Garcia, Verena ; Tsani, Stella ; Acuna, Vicenc ; Kalogianni, Eleni ; Luttik, Joke ; Kok, Kasper ; Skoulikidis, Nikolaos ; Froebrick, Jochen - \ 2019
Science of the Total Environment 660 (2019). - ISSN 0048-9697 - p. 1623 - 1632.
Climate-change - Ecosystem-services - Land-use - Transdisciplinary - Water management

The Mediterranean region is anticipated to be (or, already is) one of the hot spots for climate change, where freshwater ecosystems are under threat from the effects of multiple stressors. Climate change is impacting natural resources and on the functioning of Ecosystem Services. The challenges about modelling climate change impact on water cycle in general and specifically on socio-economic dynamics of the society leads to an exponential amount of results that restrain interpretation and added value of forecasting at local level. One of the main challenges when dealing with climate change projections is the quantification of uncertainties. Modellers might have limited information or understanding from local river catchment management practices and from other disciplines with relevant insights on socio-economic and environmental complex relationship between biosphere and human based activities. Current General Circulation Models cannot fulfil the requirements of high spatial detail required for water management policy. This article reports an innovative transdisciplinary methodology to down scale Climate Change scenarii to river basin level with a special focus on the development of climate change narrative under SSP5-RCP8.5 combination called Myopic scenario and SSP1-RCP4.5 combination called Sustainable scenario. Local Stakeholder participative workshop in the Evrotas river basin provide perception of expected changes on water demand under to two developed scenario narratives.

A novel approach to analysing the regimes of temporary streams in relation to their controls on the composition and structure of aquatic biota
Gallart, F. ; Prat, N. ; Garcia-Roger, E.M. ; Latron, J. ; Rieradevall, M. ; Liorens, P. ; Barbera, G.G. ; Brito, D. ; Girolamo, A. De; Porto, A. Lo; Buffagni, A. ; Erba, S. ; Neves, R. ; Nikolaidis, N.P. ; Perrin, L. ; Querner, E.P. ; Quinonero, J.M. ; Tournoud, M.G. ; Tzoraki, O. ; Skoulikidis, N. ; Gomez, R. ; Sanchez-Montoya, M.M. ; Froebrich, J. - \ 2012
Hydrology and Earth System Sciences 16 (2012)9. - ISSN 1027-5606 - p. 3165 - 3182.
benthic macroinvertebrate assemblages - mediterranean streams - intermittent streams - community structure - ephemeral channels - habitat features - fish assemblages - flow permanence - river health - drought
Temporary streams are those water courses that undergo the recurrent cessation of flow or the complete drying of their channel. The structure and composition of biological communities in temporary stream reaches are strongly dependent on the temporal changes of the aquatic habitats determined by the hydrological conditions. Therefore, the structural and functional characteristics of aquatic fauna to assess the ecological quality of a temporary stream reach cannot be used without taking into account the controls imposed by the hydrological regime. This paper develops methods for analysing temporary streams' aquatic regimes, based on the definition of six aquatic states that summarize the transient sets of mesohabitats occurring on a given reach at a particular moment, depending on the hydrological conditions: Hyperrheic, Eurheic, Oligorheic, Arheic, Hyporheic and Edaphic. When the hydrological conditions lead to a change in the aquatic state, the structure and composition of the aquatic community changes according to the new set of available habitats. We used the water discharge records from gauging stations or simulations with rainfall-runoff models to infer the temporal patterns of occurrence of these states in the Aquatic States Frequency Graph we developed. The visual analysis of this graph is complemented by the development of two metrics which describe the permanence of flow and the seasonal predictability of zero flow periods. Finally, a classification of temporary streams in four aquatic regimes in terms of their influence over the development of aquatic life is updated from the existing classifications, with stream aquatic regimes defined as Permanent, Temporary-pools, Temporary-dry and Episodic. While aquatic regimes describe the long-term overall variability of the hydrological conditions of the river section and have been used for many years by hydrologists and ecologists, aquatic states describe the availability of mesohabitats in given periods that determine the presence of different biotic assemblages. This novel concept links hydrological and ecological conditions in a unique way. All these methods were implemented with data from eight temporary streams around the Mediterranean within the MIRAGE project. Their application was a precondition to assessing the ecological quality of these streams.
Investigating hydrological regimes and processes in a set of catchments with temporary waters
Gallart, F. ; Amaxidis, Y. ; Botti, P. ; Cane, B. ; Castillo, V. ; Chapman, P. ; Froebrich, J. ; Garcia, J. ; Latron, J. ; Llorens, P. ; Porto, A. Lo; Morais, M. ; Neves, N. ; Ninov, P. ; Perrin, J.L. ; Ribarova, I. ; Skoulikidis, N. ; Tournoud, M.G. - \ 2008
Hydrological Sciences Journal 53 (2008)3. - ISSN 0262-6667 - p. 618 - 628.
contributing areas - spain - pyrenees - loads
Seven catchments of diverse size in Mediterranean Europe were investigated in order to understand the main aspects of their hydrological functioning. The methods included the analysis of daily and monthly precipitation, monthly potential evapotranspiration rates, flow duration curves, rainfall—runoff relationships and catchment internal data for the smaller and more instrumented catchments. The results showed that the catchments were less “dry” than initially considered. Only one of them was really semi-arid throughout the year. All the remaining catchments showed wet seasons when precipitation exceeded potential evapotrans-piration, allowing aquifer recharge, “wet” runoff generation mechanisms and relevant baseflow contribution. Nevertheless, local infiltration excess (Hortonian) overland flow was inferred during summer storms in some catchments and urban overland flow in some others. The roles of karstic groundwater, human disturbance and low winter temperatures were identified as having an important impact on the hydrological regime in some of the catchments.
The development of a system to assess the ecological quality of streams based on macroinvertebrates - design of the sampling programme within the AQEM project
Hering, D. ; Buffagni, A. ; Moog, O. ; Sandin, L. ; Sommerhäuser, M. ; Strubauer, I. ; Feld, C. ; Johnson, R. ; Pinto, P. ; Skoulikidis, N. ; Verdonschot, P.F.M. ; Zahrádková, S. - \ 2003
International Review of Hydrobiology 88 (2003)3/4. - ISSN 1434-2944 - p. 345 - 361.
river habitat survey - running-water sites - classification - assemblages - prediction
The EU Water Framework Directive (WFD) requires river assessment systems based on benthic invertebrates. The AQEM project is developing, at a European scale, such a methodology, based on a comparison of communities of reference streams and degraded streams. The project is focussing on three main impact types: morphological degradation, organic pollution and acidification. This paper presents the outline of the AQEM project with special emphasis on: - an overview of assessment systems with benthic invertebrates presently applied in Europe - an overview of stream typology approaches in Europe - the selection process of the stream types investigated in AQEM - the criteria used to select reference sites - the design of the sampling programme - the microhabitat-based sampling method applied in AQEM - the links and possibilities of integration between AQEM and existing assessment systems.
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