Présentations Colloques

    Oral Presentation
    Session 8.09: Hydrogeoecology: a focus on groundwater ecology
    Malard Florian
    European maps of habitats, bioregions, and species in groundwater
    Since the second half of the 20th century, groundwater ecology has established itself as a mature research field of limnology embracing concepts on the evolution, distribution and functional role of biodiversity. However, ecologists have comparatively been less successful in promoting the implementation of environmental policies that truly integrate life in groundwater as an essential component of groundwater resources. Part of the problem might have come from the difficulty among groundwater ecologists to provide knowledge-based information and operational tools that truly meet the needs of policy makers at national to continental scale. Here, we describe three such tools that have recently been developed as part of several research collaborative efforts. The groundwater habitat map of Europe (GHME) is derived from the international hydrogeological map of Europe- it shows the areal extent of 13 habitat types that are classified based on groundwater flow type, permeability and pore size. The groundwater bioregional map of Europe (GBME), in which 15 biogeographical regions are delineated, is based on the species compositions of groundwater crustacean assemblages. The European groundwater crustacean dataset (EGCD) contains a total of 21,700 georeferenced occurrence data of 1,570 species and subspecies of Crustacea, representing 12 orders, 46 families, and 165 genera. Covering virtually all groundwater of Europe, these habitat and bioregion maps together with their associated species dataset provide an effective European-scale knowledge base to detect factors shaping patterns of species richness and geographic range size. They also provide useful tools for integrating the maintenance and management of groundwater biodiversity into national and EU policies for the conservation and sustainable use of groundwater resources and ecosystem services.**


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