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PRAESTAS Project Proposal (6th WFP / STREPS) Impact of global change on biodiversity and ecosystems functionning: Cemagref contribution on the "benhic diatoms " and "aquatic macrophytes" BQEs

Abstract : The Water Framework Directive (WFD - 2000/60/EC) sets the objective to prevent deterioration in status of all Community waters (i.e. both surface- and ground-waters, including coastal waters, throughout the EU) and to ensure the achievement and maintenance of their good status by 2015. One important purpose of the research program proposed in PRAESTAS is then to propose methodologies able to assess the deterioration of the ecological status towards well identified chemical disturbances, and to make the water ecosystem ecological state assessment and diagnosis more accurate and interpretable for private consultants, managers and policy-makers in charge of the institutional survey natworks. At the same time, global change makes influence that mays drive to an evolution of biodiversity and ecosystems functioning. This is a second important issue tackled by PRAESTAS. These 2 issues need to : settle-up knowledge, methodologies, modelling and dedicated tools allowing to make the part between : 1) chemical and biological usual natural variation into the hydrosystem (identification and knowledge about the good reference sites), 2) man-made chemical effects interpreted as disturbances through the biological biocenosis response and altering the hydrosystem ecological status. At a longer time term, methodologies developed need to assess the evolution trends linked to global change (mostly global warming) on freshwater aquatic ecosystems, on a biodiversity (i.e. species occurring at a given geographical and bioclimatical scale) and on a functional point of view (ie achievement of natural functions of the ecosystem). As illustrated in the diaporama, Cemagref will contribute to the project on the benthic diatoms and aquatic macrophytes compartments, giving access to french national datasets issued ofresearch projetcts and national survey networks. It will provide an implication in the proposition of methodological approaches of the problem and in data analysis and modelling on the 2 above-cited biological compartments, in close collaboration with UPS- CNRS Toulouse.
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https://hal.inrae.fr/hal-02610316
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Submitted on : Saturday, May 16, 2020 - 7:38:17 PM
Last modification on : Thursday, June 3, 2021 - 5:34:03 PM

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  • HAL Id : hal-02610316, version 1
  • IRSTEA : PUB00064438

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François Delmas, Juliette Tison-Rosebery, Michel Coste, Alain Dutartre. PRAESTAS Project Proposal (6th WFP / STREPS) Impact of global change on biodiversity and ecosystems functionning: Cemagref contribution on the "benhic diatoms " and "aquatic macrophytes" BQEs. 6th WFP "PRAESTAS" Proposal Meeting, Jan 2003, Toulouse, France. pp.24. ⟨hal-02610316⟩

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