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Title: Biomonitoring of intermittent rivers and ephemeral streams in Europe: Current practice and priorities to enhance ecological status assessments
Authors: Stubbington, Rachel
Chadd, Richard
Cid, Núria
Csabai, Zoltán
Miliša, Marko
Morais, Manuela
Munné, Antoni
Pařil, Petr
Pešić, Vladimir
Tziortzis, Iakovos
Verdonschot, Ralf C.M
Datry, Thibault
Keywords: Temporary streams
temporary rivers
Water Framework Directive
river typology
Issue Date: 2017
Publisher: Sci.Total Environ
Citation: Stubbington Rachel, Chadd Richard, Cid Núria, Csabai Zoltán, Miliša Marko, Morais Manuela, Munné Antoni, Pařil Petr, Pešić Vladimir, Tziortzis Iakovos, Verdonschot Ralf C.M., Datry Thibault, 2017 - Biomonitoring of intermittent rivers and ephemeral streams in Europe: Current practice and priorities to enhance ecological status assessments. Sci.Total Environ. pii: S0048-9697(17)32486-5
Abstract: Intermittent rivers and ephemeral streams (IRES) are common across Europe and dominate some Mediterranean river networks, supporting high biodiversity and providing ecosystem services in all climate zones. As dynamic ecosystems that transition between flowing, pool, and dry states, IRES are typically poorly represented in biomonitoring programmes implemented to characterize EU Water Framework Directive 'ecological status'. We report the results of a survey completed by representatives from 20 European countries to document national IRES biomonitoring activity. We identify five major barriers to effective ecological status classification in IRES: 1. the exclusion of IRES from Water Framework Directive biomonitoring based on their small catchment size; 2. the lack of river typologies that distinguish between contrasting IRES; 3. difficulties in defining the 'reference conditions' that represent unimpacted dynamic ecosystems; 4. classification of IRES ecological status based on lotic communities sampled using methods developed for perennial rivers; and 5. a reliance on taxonomic characterization of local communities. Despite these challenges, we recognize examples of innovative practice that can inform modification of current biomonitoring activity to promote effective IRES status classification. Priorities for future research include the reconceptualization of the reference condition approach to accommodate spatiotemporal fluctuations in community composition, and modification of indices of ecosystem health to recognize taxon-specific sensitivity to intermittence and dispersal abilities, within a landscape context.
ISSN: 0048-9697
Type: article
Appears in Collections:BIO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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