Distribution et caractères phytosociologiques des Renoncules du sous-genre<i>Batrachium</i>dans le Nord de la France

Géhu, Jean Marie; Meriaux, J.

doi:10.1080/01811797.1983.10824571

Cited by 8 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Ces schémas décrivent de nombreuses successions végétales observées par les auteurs (Mériaux 1978, Géhu & Mériaux 1981, Haury 1991, Chaib 1992) et montrent une constante propre aux milieux aquatiques régionaux ou même ouest européens : la relative homogénéité des milieux permet le maintien de la plupart Le premier schéma met en évidence la diversité floristique et la dynamique de la partie principale de l'étang. Si l'ensemble de ce schéma a pu être observé sur la rive nord, avec maintenant d'importantes surfaces recouvertes par les hélophytes et bordées par la saulaie ripariale, il n'en est pas de même sur la rive opposée.…”

Section: Discussionunclassified

Variabilité spatio-temporelle des groupements végétaux d'un étang angevin (France)

Lambert-Servien¹,

Haury

Guerlesquin³

1998

Ann. Limnol. - Int. J. Lim.

View full text Add to dashboard Cite

Les relations spatiales et les évolutions entre les groupements végétaux d'un étang soumis à de fortes variations de niveau ont été étudiées par des croisements manuels des relevés et par Analyse Factorielle des Correspondances. Les résultats des deux ap-, proches concordent partiellement. Deux schémas évolutifs distincts sont mis en évidence, dans la zone principale et dans la queue d'étang. De fortes disparités apparaissent en fonction d'une part, de la morphologie des rives et, d'autre part, des variations interannuelles des niveaux d'eau. Des recommandations pour une gestion patrimoniale sont présentées. Spatio-temporal variability of plant communities from a pond Anjou (France)Keywords : pond, macrophyte, Maine-et-Loire, Factorial Correspondence Analysis, Hierarchical Cluster Analysis, dynamics.Spatial relationships and development in plant communities from a pond subjected to marked water level variations have been studied, using manual crossings of relevés and Factorial Correspondence Analysis. The results of these two approaches agree partially. Two distinct development schemes are presented, in the main area and in the tail-end of the pond. Large disparities appear related to the shape of the shores and to the interannual variations of water level. Advices for a natural heritage approach to management are proposed.

show abstract

Section: Discussionunclassified

Variabilité spatio-temporelle des groupements végétaux d'un étang angevin (France)

Lambert-Servien¹,

Haury

Guerlesquin³

1998

Ann. Limnol. - Int. J. Lim.

View full text Add to dashboard Cite

show abstract

“…In Italy, associations dominated by R. aquatilis have been reported mainly for Central Italy (e.g., Biondi et al 1999). As put in evidence by several authors (Géhu and Meriaux 1983;Passarge 1992), one of the main issues related to the correct recognition of this association depends on the fact that many authors do not separate the assemblages dominated by R. aquatilis and R. peltatus, respectively. Consequently, the Ranunculetum aquatilis is often considered as a macro-association to which populations of both species can be attributed (see also Sumberová 2011b).…”

Section: Potamogetono-ceratophylletum Sub-mersi Pop 1962 (Tablesmentioning

confidence: 99%

Contribution to the knowledge of Mediterranean wetland vegetation: Lemnetea and Potamogetonetea classes in Western Sicily

Caldarella

Lastrucci²,

Bolpagni³

et al. 2021

Plant Sociology

View full text Add to dashboard Cite

The freshwater aquatic vegetation of the Lemnetea and Potamogetonetea classes in Western Sicily was surveyed and analyzed. 85 lakes and small pools were investigated collecting 147 phytosociological unpublished relevés to integrate the very scarce available data (only 3 relevés). By applying statistical analyses on abundances data and on the bases of physiognomy and dominant species, two alliances (Lemnion minoris and Stratiotion) and four different coenoses have been identify for the Lemnetea class; while 11 associations, assigned to two orders (Potamogetonetalia pectinati and Callitricho hamulatae-Ranunculetalia aquatilis) and four alliances (Potamogetonion, Nymphaeion albae, Ranunculion aquatilis and Ranunculion omiophyllo-hederacei) have been recognized for the Potamogetonetea class. A new association (Junco bufonii-Ranunculetum omiophylli ass. nov.) and a new subassociation (Ranunculetum peltati ranunculetosum rionii subass. nov.) have been proposed, whereas other six vegetation units were found to be new for the study area (Potamogetono-Ceratophylletum submersi, Potamogetonetum pusilli, Ranunculetum aquatilis, Ranunculetum peltati and Ranunculetum rionii, Lemno-Callitrichetum obtusangulae). For all the coenoses recognized, new insights on the floristic composition, syntaxonomy, synphiognomy, synecology and synchorology are reported, offering a reasoned overview of the aquatic vegetation of the western sector of the main Mediterranean island.

show abstract

“…Up to now, Ranunculus communities in chalk streams and rivers have been widely investigated in the Atlantic area (e.g. Ladle and Casey 1971;Dawson 1976Dawson , 1980Ham et al 1982;Webster 1988;Spink et al 1997), but few studies have been done on the subAtlantic Ranunculus communities (Eichenberger and Weilenmann 1982;Ge´hu and Me´riaux 1983;Ska and Van der Borght 1986;Carbiener et al 1990;Muller 1990;Haury et al 1994;Tre´molie`res et al 1994;Thie´baut and Muller 1999;Chatenet et al 2001). Descriptions are moreover quite heterogeneous and European researchers are not in total agreement as to their precise ecological requirements (Wiegleb and Herr 1983).…”

Section: Introductionmentioning

confidence: 98%

Floristic and ecological diversity of Ranunculus aquatic habitats in the sub-Atlantic range: implications for conservation

Mony

Mony²,

Thiébaut³

et al. 2006

Biodivers Conserv

View full text Add to dashboard Cite

Ranunculus communities have been identified by the European Community Directive on Conservation of Natural and Semi-Natural Habitats as a key habitat in need of protection. The ecological requirements and floristic composition of three Ranunculus communities were investigated in North-Eastern France. We also aimed to determine the relationships between environmental parameters, Ranunculus abundance and species richness. R. fluitans communities clearly differed from the other communities by a higher evenness and species richness and by the occurrence of specific species. In contrast, R. penicillatus and R. peltatus communities displayed similar floristic content. Three different sub-associations were however identified within these communities. If alkalinity was determinant in isolating R. fluitans communities from the other stretches, the ecological ranges of the three communities strongly overlapped while considering parameters linked with other resources or with physical constraints. Further, no significant correlations were highlighted between environmental parameters, Ranunculus abundance and species richness. With respect to conservation, these observations may indicate the particular difficulty in defining each Ranunculus habitat on a European scale, and identify several key points which need to be taken into account when evaluating their status.

show abstract

Distribution et caractères phytosociologiques des Renoncules du sous-genreBatrachiumdans le Nord de la France

Cited by 8 publications

References 0 publications

Variabilité spatio-temporelle des groupements végétaux d'un étang angevin (France)

Variabilité spatio-temporelle des groupements végétaux d'un étang angevin (France)

Contribution to the knowledge of Mediterranean wetland vegetation: Lemnetea and Potamogetonetea classes in Western Sicily

Floristic and ecological diversity of Ranunculus aquatic habitats in the sub-Atlantic range: implications for conservation

Contact Info

Product

Resources

About