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Auteur Noëlie Maurel
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Does the invasive species Reynoutria japonica have an impact on soil and ora in urban wastelands ? / Noëlie Maurel in Biological Invasions, 12 (10/2010)
Titre : Does the invasive species Reynoutria japonica have an impact on soil and ora in urban wastelands ? Type de document : Électronique Auteurs : Noëlie Maurel ; Sandrine Salmon ; Jean-François Ponge (1948-) ; et al. Année de publication : 2010 Article en page(s) : 1709-1719 Langues : Anglais (eng) Catégories : [Thématique] Friche
[Thématique] Plantes subspontanées, naturalisées, envahissantes
Mots-clés : Reynoutria japonica Houtt. Fallopia japonica (Houtt.) Ronse Decr., 1988 Polygonum cuspidatum Siebold & Zucc. Résumé : Invasive plants are recognised as a major threat to biodiversity. Although they are well-established in natural areas, the supposed negative impacts of invasive plants upon communities and ecosystems have so far been poorly investigated in urban areas, where invasions are a main issue for ecologists and for urban planners and managers. We propose to assess the effects of an invasive species along an invasion gradient in a typical urban habitat. We focused on the Japanese knotweed (Reynoutria japonica Houtt.), a widespread invasive species in Europe and North America. We considered eight urban wastelands invaded by this species in the heart of the Greater Paris Area, France. On each site, we ran four transects from the centre of the Japanese knotweed patch towards the uninvaded peripheral vegetation. We recorded the flora using the line intercept method, and several soil parameters (thickness of A horizon, abundance of earthworm casts, topsoil Munsell value, pH) every metre along each transect. The A horizon was thicker and the topsoil darker under R. japonica canopy. Thus, this invasive plant species seemed to influence soil organic matter pool. However, our results also steadily showed that R. japonica locally excluded and/or severely reduced the cover of many plant species through competition. Our study clarified the local effects of R. japonica: an influence on the soil organic matter, and a severe negative impact on wasteland plant communities. We suggest implications in both conservation and restoration ecology. Identifiant pérenne : HAL : hal-00493972
in Biological Invasions > 12 (10/2010) . - 1709-1719Maurel, N., Salmon, S., Ponge, J.F., et al., 2010 - Does the invasive species Reynoutria japonica have an impact on soil and ora in urban wastelands ? ; Biological Invasions, 12 : 1709-1719.
Naturalized alien flora of the world: species diversity, taxonomic and phylogenetic patterns, geographic distribution and global hotspots of plant invasion / Petr Pyšek in Preslia, 89 (2017)
Titre : Naturalized alien flora of the world: species diversity, taxonomic and phylogenetic patterns, geographic distribution and global hotspots of plant invasion Type de document : Électronique Auteurs : Petr Pyšek ; Jan Pergl (1977-) ; Bernd Lenzner ; Wayne Dawson ; Holger Kreft ; Patrick Weigelt ; Marten Winter ; John Kartesz ; Misako Nishino ; Luibov A. Antonova ; Julie F. Barcelona ; Fransisco J. Cabezas ; Dairon Cárdenas ; Juliana Cárdenas-Toro ; Nicolás Castaño ; Eduardo Chacón ; Cyrille Chatelain ; Stefan Dullinger ; Alexandr L. Ebel ; Estrela Figueiredo ; Nicol Fuentes ; Piero Genovesi (1960-) ; Quentin Groom ; Lesley Henderson ; S Inderjit ; Audrey Kupriyanov ; Silvana Masciadri ; Noëlie Maurel ; Jan Meerman ; Olga Morozova ; Dietmar Moser ; Daniel L. Nickrent ; Pauline M. Nowak ; Shyama Pagad ; Annette Patzelt ; Pieter B. Pelser ; Hanno Seebens ; Wen-Sheng Shu ; Jacob Thomas ; Mauricio Velayos ; Ewald Weber (1960-) ; Jan J. Wieringa ; María P. Baptiste ; Mark van Kleunen (1973-) Année de publication : 2017 Article en page(s) : 203-274 Langues : Anglais (eng) Catégories : [Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Using the recently built Global Naturalized Alien Flora (GloNAF) database, containing data on the distribution of naturalized alien plants in 483 mainland and 361 island regions of the world, we describe patterns in diversity and geographic distribution of naturalized and invasive plant species, taxonomic, phylogenetic and life-history structure of the global naturalized flora as well as levels of naturalization and their determinants. The mainland regions with the highest numbers of naturalized aliens are some Australian states (with New South Wales being the richest on this continent) and several North American regions (of which California with 1753 naturalized plant species represents the world’s richest region in terms of naturalized alien vascular plants). England, Japan, New Zealand and the Hawaiian archipelago harbour most naturalized plants among islands or island groups. These regions also form the main hotspots of the regional levels of naturalization, measured as the percentage of naturalized aliens in the total flora of the region. Such hotspots of relative naturalized species richness appear on both the western and eastern coasts of North America, in north-western Europe, South Africa, south-eastern Australia, New Zealand, and India. High levels of island invasions by naturalized plants are concentrated in the Pacific, but also occur on individual islands across all oceans. The numbers of naturalized species are closely correlated with those of native species, with a stronger correlation and steeper increase for islands than mainland regions, indicating a greater vulnerability of islands to invasion by species that become successfully naturalized. South Africa, India, California, Cuba, Florida, Queensland and Japan have the highest numbers of invasive species. Regions in temperate and tropical zonobiomes harbour in total 9036 and 6774 naturalized species, respectively, followed by 3280 species naturalized in the Mediterranean zonobiome, 3057 in the subtropical zonobiome and 321 in the Arctic. The New World is richer in naturalized alien plants, with 9905 species compared to 7923 recorded in the Old World. While isolation is the key factor driving the level of naturalization on islands, zonobiomes differing in climatic regimes, and socioeconomy represented by per capita GDP, are central for mainland regions. The 11 most widely distributed species each occur in regions covering about one third of the globe or more in terms of the number of regions where they are naturalized and at least 35% of the Earth’s land surface in terms of those regions’ areas, with the most widely distributed species Sonchus oleraceus occuring in 48% of the regions that cover 42% of the world area. Other widely distributed species are Ricinus communis, Oxalis corniculata, Portulaca oleracea, Eleusine indica, Chenopodium album, Capsella bursa-pastoris, Stellaria media, Bidens pilosa, Datura stramonium and Echinochloa crus-galli. Using the occurrence as invasive rather than only naturalized yields a different ranking, with Lantana camara (120 regions out of 349 for which data on invasive status are known), Calotropis procera (118), Eichhornia crassipes (113), Sonchus oleraceus (108) and Leucaena leucocephala (103) on top. As to the life-history spectra, islands harbour more naturalized woody species (34.4%) than mainland regions (29.5%), and fewer annual herbs (18.7% compared to 22.3%). Ranking families by their absolute numbers of naturalized species reveals that Compositae (1343 species), Poaceae (1267) and Leguminosae (1189) contribute most to the global naturalized alien flora. Some families are disproportionally represented by naturalized aliens on islands (Arecaceae, Araceae, Acanthaceae, Amaryllidaceae, Asparagaceae, Convolvulaceae, Rubiaceae, Malvaceae), and much fewer so on mainland (e.g. Brassicaceae, Caryophyllaceae, Boraginaceae). Relating the numbers of naturalized species in a family to its total global richness shows that some of the large species-rich families are over-represented among naturalized aliens (e.g. Poaceae, Leguminosae, Rosaceae, Amaranthaceae, Pinaceae), some under-represented (e.g. Euphorbiaceae, Rubiaceae), whereas the one richest in naturalized species, Compositae, reaches a value expected from its global species richness. Significant phylogenetic signal indicates that families with an increased potential of their species to naturalize are not distributed randomly on the evolutionary tree. Solanum (112 species), Euphorbia (108) and Carex (106) are the genera richest in terms of naturalized species; over-represented on islands are Cotoneaster, Juncus, Eucalyptus, Salix, Hypericum, Geranium and Persicaria, while those relatively richer in naturalized species on the mainland are Atriplex, Opuntia, Oenothera, Artemisia, Vicia, Galium and Rosa. The data presented in this paper also point to where information is lacking and set priorities for future data collection. The GloNAF database has potential for designing concerted action to fill such data gaps, and provide a basis for allocating resources most efficiently towards better understanding and management of plant invasions worldwide. Identifiant pérenne : DOI : 10.23855/preslia.2017.203
in Preslia > 89 (2017) . - 203-274Pyšek, P., Pergl, J., Lenzner, B., Dawson, W., Kreft, H., Weigelt, P., Winter, M., Kartesz, J., Nishino, M., Antonova, L.A., Barcelona, J.F., Cabezas, F.J., Cárdenas, D., Cárdenas-Toro, J., Castaño, N., Chacón, E., Chatelain, C., Dullinger, S., Ebel, A.L., Figueiredo, E., Fuentes, N., Genovesi, P., Groom, Q., Henderson, L., Inderjit, S., Kupriyanov, A., Masciadri, S., Maurel, N., Meerman, J., Morozova, O., Moser, D., Nickrent, D.L., Nowak, P.M., Pagad, S., Patzelt, A., Pelser, P.B., Seebens, H., Shu, W.S., Thomas, J., Velayos, M., Weber, E., Wieringa, J.J., Baptiste, M.P., Kleunen, M.v., 2017 - Naturalized alien flora of the world: species diversity, taxonomic and phylogenetic patterns, geographic distribution and global hotspots of plant invasion ; Preslia, 89 : 203-274.