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<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd> <responseDate>2018-01-15T18:29:48Z</responseDate> <request identifier=oai:HAL:hal-01032125v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request> <GetRecord> <record> <header> <identifier>oai:HAL:hal-01032125v1</identifier> <datestamp>2018-01-11</datestamp> <setSpec>type:ART</setSpec> <setSpec>subject:sdv</setSpec> <setSpec>collection:CNRS</setSpec> <setSpec>collection:UNIV-AG</setSpec> <setSpec>collection:CIRAD</setSpec> <setSpec>collection:AGROPARISTECH</setSpec> <setSpec>collection:GIP-BE</setSpec> <setSpec>collection:ECOFOG</setSpec> <setSpec>collection:INRA</setSpec> </header> <metadata><dc> <publisher>HAL CCSD</publisher> <title lang=en>Diversity of plant assemblages in isolated depressional wetlands from Central-Western Europe</title> <creator>Herault, Bruno</creator> <creator>Thoen, Daniel</creator> <contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Department of Environmental Sciences & Management ; Université de Liège</contributor> <description> </description> <source>ISSN: 0960-3115</source> <source>EISSN: 1572-9710</source> <source>Biodiversity and Conservation</source> <publisher>Springer Verlag</publisher> <identifier>hal-01032125</identifier> <identifier>https://hal.archives-ouvertes.fr/hal-01032125</identifier> <source>https://hal.archives-ouvertes.fr/hal-01032125</source> <source>Biodiversity and Conservation, Springer Verlag, 2008, 17 (9), pp.2169-2183. 〈10.1007/s10531-007-9227-x〉</source> <identifier>DOI : 10.1007/s10531-007-9227-x</identifier> <relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s10531-007-9227-x</relation> <language>en</language> <subject lang=fr>plant assemblage</subject> <subject lang=fr>vegetation composition</subject> <subject lang=fr>species richness</subject> <subject lang=fr>species rarity</subject> <subject lang=fr>species accumulation</subject> <subject lang=fr>environmental factors</subject> <subject lang=fr>organic matter</subject> <subject lang=fr>plant light tolerance</subject> <subject lang=fr>soil productivity</subject> <subject lang=fr>regional connectivity</subject> <subject lang=fr>Ellenberg value</subject> <subject lang=fr>Non-metric Multidimensional Scaling analyses</subject> <subject lang=fr>Generalized Linear Model</subject> <subject lang=fr>Lorraine</subject> <subject lang=fr>Belgium</subject> <subject lang=fr>France</subject> <subject lang=fr>Luxembourg</subject> <subject lang=fr>closed depressions</subject> <subject lang=fr>connectivity</subject> <subject lang=fr>fens</subject> <subject lang=fr>forest</subject> <subject lang=fr>grassland</subject> <subject lang=fr>habitat area</subject> <subject lang=fr>landscape matrix</subject> <subject lang=fr>facteur environnemental</subject> <subject lang=fr>tolérance à la lumière</subject> <subject lang=fr>géomorphologie</subject> <subject lang=fr>indice d'Ellenberg</subject> <subject lang=fr>gradation non métrique multidimensionnelle</subject> <subject lang=fr>modèle linéaire général</subject> <subject>[SDV.BID] Life Sciences [q-bio]/Biodiversity</subject> <type>info:eu-repo/semantics/article</type> <type>Journal articles</type> <description lang=en>A closed depression is defined as a geomorphologic element where a sediment depository is encircled by hillslopes. Despite the fact that closed depressions are often the only stagnant water points in many European landscapes, few ecological researches on their plant assemblages have been done. The main goal of this study was to give first results of the environmental factors responsible for the vegetation composition, richness and rarity in the closed depressions of the Lorraine biogeographical district (Belgium, France and grand-duche de Luxembourg). We surveyed for plant presence 85 forest and 77 grassland closed depressions. For each site, wetland area, local environmental factors and regional connectivities registered. For each species, the Ellenberg values were compiled. To investigate the main source of variation in species composition and in species richness (including richness in rare species), Non-metric Multidimensional Scaling analyses and Generalized Linear Models were respectively used. Species pools in forest (forest and preforest species) and in grassland (bog plants, pioneers, helophytes) were quite different. In both landscapes, a gradient from plants typical of basic high-productive soils to plants typical of acid low-productive soils reflects a shared successional gradient. The accumulation of organic matter allowed the establishment of Sphagnum spp., which slowly acidified the soil and thus acted as ecosystem engineers for the arrival of bog plants. Moreover, the species composition was additionally driven by the plant light tolerance in forests and by the plant water requirements in grasslands. Mechanisms of species accumulation (increase in species richness) were different in forests and in grasslands: respectively related to the plant light tolerance and to the wetland area. At the regional level, the averaged soil productivity was negatively related to the richness in rare species. Indeed, perennial highly-competitive plants such as Glyceria spp., Iris pseudacorus or Urtica dioica impeded the establishment of smaller and rarer species. At the habitat level, isolated closed depressions (due to either low connectivity or low grazing pressure) have more habitat rare species, giving evidences of dispersal limitation in plant assemblages of closed depressions.</description> <date>2008</date> </dc> </metadata> </record> </GetRecord> </OAI-PMH>