A syntaxonomical study of subalpine heathland communities in West European low mountain ranges

Schaminée, J.H.J.; Hennekens, S.M.; Thébaud, Gilles

doi:10.2307/3235740

Cited by 9 publications

(21 citation statements)

References 11 publications

(7 reference statements)

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“…But then again, Rhododendro-Vaccinietum is a shrub association with several subassociations, one of them (Rhododendro-Vaccinietum cembretosum, now being regarded as a distinct association Larici-Cembretum) having a tree layer and being considered the climax forest of the Central Alps (cf. Schaminée et al 1993). A similar situation exists in the Mediterranean evergreen vegetation of the Quercetea ilicis: associations of the Quercion ilicis alliance are forests, whereas the Oleo-Ceratonion and the Periplocion consist of shrubs and open chaparral.…”

Section: On the Evaluation Of Physiognomic Criteria For Syntaxonomymentioning

confidence: 83%

On the concept of vegetation class in phytosociology

Pignatti

Oberdorfer²,

Schaminée³

et al. 1995

J Vegetation Science

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Abstract. The vegetation class is generally accepted as the highest category in vegetation taxonomy. Vegetation classes, following the tradition, are defined mainly on the basis of character species. However, these are sometimes relatively rare and not always really representative of the ecological conditions of plant communities included in the class. In the present study the possibilities are discussed for a more comprehensive definition of the class, including spatial structure and environmental characteristics of the vegetation and the geographical distribution of character species. These include criteria with practical value, in particular for the understanding of vegetation in tropical areas. Some cases of well‐known vegetation classes are discussed; in most of them the ranges of single character species and the range of the class as a whole largely coincide.

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Section: On the Evaluation Of Physiognomic Criteria For Syntaxonomymentioning

confidence: 83%

On the concept of vegetation class in phytosociology

Pignatti

Oberdorfer²,

Schaminée³

et al. 1995

J Vegetation Science

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“…With respect to diagnostic species, Schamine´e et al (1993) recommends that at least one constant and one differential species are needed to define an association. For overall composition, Mueller-Dombois and Ellenberg (1974) suggest, as a rule of thumb, that stands with a Jaccard presence-absence index (of similarity to the most typical plot) between 25% and 50% could be part of the same association, and that stands with greater levels of similarity may better define sub-associations.…”

Section: Associationmentioning

confidence: 99%

“…For overall composition, Mueller-Dombois and Ellenberg (1974) suggest, as a rule of thumb, that stands with a Jaccard presence-absence index (of similarity to the most typical plot) between 25% and 50% could be part of the same association, and that stands with greater levels of similarity may better define sub-associations. With respect to diagnostic species, Schamine´e et al (1993) recommends that at least one constant and one differential species are needed to define an association. Willner (2006) recommends that the differential and character species should have cover value indices between 2 (weak diagnostic) and 10 (strong diagnostic) times the value they have in other types in which they are found.…”

Section: Associationmentioning

confidence: 99%

Standards for associations and alliances of the U.S. National Vegetation Classification

Jennings

Faber-Langendoen

Loucks

et al. 2009

Ecological Monographs

188

248

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This article provides guidelines for the description, documentation, and review of proposals for new or revised plant associations and alliances to be recognized as units of vegetation within the U.S. National Vegetation Classification (NVC). By setting forth standards for field records, analysis, description, peer review, and archiving, the Ecological Society of America's Vegetation Classification Panel, in collaboration with the U.S. Federal Geographic Data Committee, NatureServe, and others, seeks to advance our common understanding of vegetation and improve our capability to sustain and restore natural systems. We provide definitions for the two floristic levels of the NVC hierarchy: associations and alliances. This is followed by a description of standards for field plot records and the identification and classification of vegetation types. Procedures for review and evaluation of proposed additions and revisions of types are provided, as is a structure for data archiving and dissemination. These procedures provide a dynamic and practical way to publish new or revised descriptions of vegetation types while maintaining a current, authoritative list of types for multiple users to access and apply. for the U.S. Forest Service ECODATA software. Break points shown in the cover-abundance column reflect the major break points of the Braun-Blanquet scale, which is considered the minimum standard for cover classes. Among the available cover class systems, NC and K can be unambiguously collapsed to the BB standard, and the D, DAUB, FS, PA, and NZ scales are for all practical purposes collapsible into the BB scale without damage to data integrity. The BDS is somewhat discordant with the BB standard and should be avoided except when required for incorporation of legacy data.Species present in the stand but not in the plot are indicated in parentheses on the species list. à This is a cover-abundance scale; if numerous individuals of a taxon collectively contribute less than 5% cover, then the taxon can be assigned a value of 1 or, if very sparse, a ''þ.'' MICHAEL D. JENNINGS ET AL. 182

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“…Il ne s'agit donc pas ici d'une étude vraiment nouvelle car, si l'on se limite aux formations landicoles des parties centrale et méridionale du Massif central, elles ont fait l'objet de plusieurs travaux phytosociologiques depuis la thèse fondatrice de J. Braun (1915) sur les cévennes méridionales : Quézel & Rioux (1954) pour le cantal, Baudière (1970Baudière ( , 1973 sur l'Espinouze, de Foucault (1987) sur l'Aubrac, cusset & de la chapelle (1962), Michalet et al (1989), Gueugnot et al (1993Gueugnot et al ( ), coquillard et al (1994 sur les monts Dore, Schaminée & Hennekens (1992), Schaminée et al (1993Schaminée et al ( ) et thébaud (1988 …”

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Essai de typification de quelques végétations landicoles du Vivarais (Ardèche, France)

Delpech¹,

Mollet²

2008

Acta Botanica Gallica

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40 relevés stationnels totalisant 238 espèces vasculaires, répartis sur quatre étages de végétation (mésoméditerranéen, méditerranéo-montagnard, montagnard et subalpin inférieur) ont été traités par analyse factorielle des correspondances (logiciel Anaphyto). Elle a mis en évidence cinq ensembles de relevés pouvant se rattacher aux groupements suivants : Cistion ladaniferi Br.-Bl. 1931, Cytision oromediterraneo-scoparii Riv. Mart. et al. 2000, Alchemillo saxatilis-Vaccinietum uliginosi Thébaud 1988, Vaccinio-Gentianetum luteae Br.-Bl. 1939, Genisto pilosae-Arctostaphyletum uvae-ursi Br.-Bl. 1939. Les caractéristiques et les niveaux moyens de biodiversité de ces groupements sont comparés. Mais ces peuplements sont en constante évolution sous l'effet de la dynamique végétale naturelle, de l'abandon du pastoralisme, du feu ou du boisement artificiel.Mots clés : analyse numérique -biodiversité -dynamique végétale -phytosociologie -synécologie.Abstract.-40 relevés totalizing 238 vascular species, distributed in four vegetation's levels (mesomediterranean, mountain-mediterranean, mountain and low subalpine), were processed by factorial correspondence analysis (AFC, software Anaphyto). This analysis leads to five groups: Cistion ladaniferi Br.-Bl. 1931, Cytision oromediterraneo-scoparii Riv. Mart. et al. 2000, Alchemillo saxatilisVaccinietum uliginosi Thébaud 1988, Vaccinio-Gentianetum luteae Br.-Bl. 1939, Genisto pilosae-Arctostaphyletum uvae-ursi Br. Bl. 1939. The characteristics and the biodiversity levels of these groups are compared. But these communities are in constant evolution owing to the effects of the natural dynamic, abandon of pastoralism, fire or artificial afforestation.

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A syntaxonomical study of subalpine heathland communities in West European low mountain ranges

Cited by 9 publications

References 11 publications

On the concept of vegetation class in phytosociology

On the concept of vegetation class in phytosociology

Standards for associations and alliances of the U.S. National Vegetation Classification

Essai de typification de quelques végétations landicoles du Vivarais (Ardèche, France)

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