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Auteur Wolfgang Willner |
Documents disponibles écrits par cet auteur
Affiner la rechercheDiversity of lowland hay meadows and pastures in Western and Central Europe / Maria Pilar Rodriguez-Rojo in Applied Vegetation Science, vol. 20, n°4 (Année 2017)
Titre : Diversity of lowland hay meadows and pastures in Western and Central Europe Type de document : Livre Auteurs : Maria Pilar Rodriguez-Rojo, Auteur ; Borja Jiménez-Alfaro, Auteur ; Ute Jandt, Auteur ; Heide Bruelheide, Auteur ; John Rodwell, Auteur ; Joop H. J. Schaminée, Auteur ; Philip Perrin, Auteur ; Zygmunt Kazcki, Auteur ; Wolfgang Willner, Auteur ; Federico Fernandez-Gonzales, Auteur ; Milan Chytrý, Auteur Année de publication : 2017 Article en page(s) : pp. 702-719 Langues : Anglais Résumé : "This analysis challenges the traditional concept of mesic grassland alliances separating hay meadows from pastures. New classification should be based mainly on the differences in management intensity rather than in management practice. Consequently, nutrient‐poor extensive pastures, which currently are not considered in the European Habitats Directive, should receive the same conservation attention as low‐intensive hay meadows, because both types of vegetation can be equally species‐rich and do not differ substantially in floristic composition from each other." Type de publication : périodique Référence biblio : Rodriguez-Rojo M., Jiménez-Alfaro B., Jandt U., Bruelheide H., Rodwell J., Schaminée J.-J., Perrin P., Kazcki Z., Willner W., Fernandez-Gonzales F., Chytrý M., 2017 - Diversity of lowland hay meadows and pastures in Western and Central Europe. Applied Vegetation Science, 20 (4) : 702-719. DOI : 10.1111/avsc.12326 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=65948
in Applied Vegetation Science > vol. 20, n°4 (Année 2017) . - pp. 702-719[article]Exemplaires
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Titre : Effects of different fidelity measures and contexts on the determination of diagnostic species Type de document : Livre Auteurs : Wolfgang Willner, Auteur ; Lubomír Tichý, Auteur ; Milan Chytrý, Auteur Année de publication : 2009 Article en page(s) : pp. 130-137 Langues : Anglais Catégories : [habitats/milieux] 4 - Forêts
[ZG] Europe centraleMots-clés : abondance (écologie) Couvert végétal végétation arbustive phytossociologie classification de la végétation Résumé : "The strongest impact on the lists of diagnostic species was not the fidelity measure itself but the context of its application and the use of presence/absence or cover data. Despite the weak correlation between individual fidelity values, traditional (non-statistical) and statistical measures produce quite similar lists of diagnostic species, provided that the context of the analysis is the same. Both approaches have their advantages and disadvantages, and the choice of the appropriate algorithm should depend on the focus of the study." (source : auteurs) Type de publication : périodique Référence biblio : Willner W., Tichý L., Chytrý M., 2009 - Effects of different fidelity measures and contexts on the determination of diagnostic species. Journal of Vegetation Science, 20 (1) : 130-137. ID PMB : 65727 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=65727
in Journal of Vegetation Science > vol. 20, n°1 (Année 2009) . - pp. 130-137[article]Exemplaires
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Titre : Syntaxonomische Revision der sudmitteleuropaischen Buchenwalder Titre original : Syntaxonomical revision of the beech forests of southern Central Europe Type de document : Livre Auteurs : Wolfgang Willner, Auteur Année de publication : 2002 Article en page(s) : pp. 337-453 Langues : Allemand Catégories : [habitats/milieux] 4 - Forêts Mots-clés : phytosociologie classification syntaxonomie Résumé : "For beech forests of Central Europe (including the Illyrian region) a great number of different and more or less incompatible classification approaches can be found. In order to critically revise the syntaxonomy of Central European beech forests, a TWINSPAN analysis of 5815 relevés from all over the area (mostly compiled from literature) was made. The result corresponds with the classical conception of three main groups of beech forests: 1. thermophilous beech forests (Cephalanthero-Fagion), 2. mesophilous beech forests (Asperulo-Fagion) and 3. acidophilous beech forests (Luzulo-Fagion). Each of these groups can be further divided according to altitudinal, edaphic and geographic gradients. In the study area 25 associations are distiguished. Their floristical characteristics, site conditions and distribution are described in detail. The nomenclature of all syntaxa is discussed and revised. Regarding syntaxa above association level six suballiances are suggested two within thermophilous beech forests (Cephalanthero-Fagenion, Ostryo-Fagenion), three within mesophilous beech forests (Eu-Fagenion, Lamio orvalae-Fagenion, Lonicero alpigenae-Fagenion) and one within acidophilous beech forests (Luzulo-Fagenion). Alliances based only on geography, containing a multitude of ecological types of beech forests, do not well reflect the floristic patterns and should be abandoned." (source : auteur) Type de publication : périodique Référence biblio : Willner W., 2002 - Syntaxonomische Revision der sudmitteleuropaischen Buchenwalder. Phytocoenologia, 32 (3) : 337-453. ID PMB : 64898 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=64898
in Phytocoenologia > vol. 32, n°3 (Année 2002) . - pp. 337-453[article]Exemplaires
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