Biodiversity and Structure of Macroinvertebrate Communities Along a Small Permanent Salinity Gradient (Meurthe River, France)
| Autor: | Jean-Nicolas Beisel, Jean-Claude Moreteau, Christophe Piscart |
|---|---|
| Přispěvatelé: | Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO), Université de Rennes (UR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Biodiversité et Fonctionnement des Ecosystèmes (LBFE), Université Paul Verlaine - Metz (UPVM), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Briand, Valerie |
| Rok vydání: | 2005 |
| Předmět: |
0106 biological sciences
Abiotic component Soil salinity biology Ecology 010604 marine biology & hydrobiology 15. Life on land Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Dreissena [SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces environment Corbicula fluminalis Salinity Abundance (ecology) Species evenness Species richness [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
| Zdroj: | Hydrobiologia Hydrobiologia, 2005, 551, pp.227-236 Hydrobiologia, Springer, 2005, 551, pp.227-236 |
| ISSN: | 1573-5117 0018-8158 |
| DOI: | 10.1007/s10750-005-4463-0 |
| Popis: | Changes in the macroinvertebrate community were investigated over 10 months at four sites along a 19 km salinity gradient (0.21–2.60 g l−1) in a sixth-order stream, the Meurthe River, northeastern France. Abiotic characteristics other than salinity were similar between the sites. Macroinvertebrate taxonomic richness decreased by 30% downstream of the 1.4 g l−1 sites while diversity, evenness or total abundance of taxa did not change along the gradient. In terms of functioning, a slight change in relative abundances of invertebrate feeding groups followed the salinity gradient. Eight invertebrate assemblages occurred within specific salinity distributions were identified. The exotics Gammarus tigrinus, Dreissena polymorpha, Corbicula fluminalis and Corophium curvispinum, were more abundant at the highest salinity site. These results suggest that rising salinity concentrations drastically affect the species composition, including favouring exotic species. |
| Databáze: | OpenAIRE |
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