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Ajouter le résultat dans votre panierFormalized classification of thermophilous oak forests in the Czech Republic : what brings the Cocktail method ? / Jan Rolecek in Preslia, 79 (2007)
Titre : Formalized classification of thermophilous oak forests in the Czech Republic : what brings the Cocktail method ? Type de document : Électronique Auteurs : Jan Rolecek (1976-) Année de publication : 2007 Article en page(s) : 1–21 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Groupements végétaux, phytosociologie
[CBNPMP-Géographique] République TchèqueMots-clés : Quercetalia pubescenti-petraeae Quercus Résumé : A formalized classification of Czech thermophilous oak forest vegetation is presented. It is based on the Cocktail algorithm, including the formulation of a set of explicit definitions of vegetation units that are used for unequivocal assignment of relevés to defined vegetation types. Eight out of 10 traditionally distinguished associations of thermophilous oak forests were formally defined: Bohemian warm and dry oak forest (Lathyro versicoloris-Quercetum pubescentis), Moravian warm and dry oak forest (Pruno mahaleb-Quercetum pubescentis), dry-mesic oak forest on basic rocky substrates (Corno-Quercetum), dry-mesic oak forest on acidic substrates (Sorbo torminalis-Quercetum), Moravian dry oak forest on acidic substrates (Genisto pilosae-Quercetum petraeae), dry-mesic oak forest on heavy soils (Potentillo albae-Quercetum), dry-mesic oak forest on sandy soils (Carici fritschii-Quercetum roboris) and dry oak forest on loess (Quercetum pubescenti-roboris). The specific features of Cocktail classifications are discussed. The complementarity of the traditional, imperfectly formalized classifications and modern formalized classifications is stressed. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=141926
in Preslia > 79 (2007) . - 1–21Rolecek, Jan (1976-) 2007 Formalized classification of thermophilous oak forests in the Czech Republic : what brings the Cocktail method ? Preslia, 79: 1–21.Documents numériques
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Titre : Effects of virus infection on growth of the invasive alien Impatiens glandulifera Type de document : Électronique Auteurs : Johannes Kollmann (1963-) ; Maria José Bañuelos ; Steen Lykke Nielsen Année de publication : 2007 Article en page(s) : 33-44 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Mots-clés : Impatiens glandulifera Royle Résumé : The absence of fungal or viral diseases of some invasive alien plants partially explains their success. However, for several species this issue has not been studied and no account of such infections are recorded for Impatiens glandulifera, a problematic weed in moist and half-open habitats of central and western Europe. We record for the first time viral infections in plants from different European regions grown in a common garden experiment. The infection was systemic and could be transferred to two species of Chenopodium and five species of Nicotiana, and resulted in the development of local necrotic spots within a week. The symptoms resembled Tobacco Rattle Virus, but this was not confirmed by an ELISA-test. In I. glandulifera the virus led to reduced above-ground biomass. Relative stem biomass and basal diameter were also lower in diseased plants, but therewas no significant differences in plant height and number of main branches. Also virus infection did not affect the following reproductive traits: time to flowering, pollen viability, fruit abortion, seed/ovule ratio, seed number per fruit and individual seed mass. This virus was not transmitted via seed. The potential effects of such viral infections on the population dynamics and biological control of this alien plant are discussed. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142461
in Preslia > 79 (2007) . - 33-44Kollmann, Johannes (1963-), Bañuelos, Maria José, Nielsen, Steen Lykke 2007 Effects of virus infection on growth of the invasive alien Impatiens glandulifera. Preslia, 79: 33-44.Documents numériques
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Titre : From ornamental to detrimental? The incipient invasion of Central Europe by Paulownia tomentosa Type de document : Électronique Auteurs : Franz Essl (1973-) Année de publication : 2007 Article en page(s) : 377-389 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Mots-clés : Paulownia tomentosa (Thunb.) Steudel Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147675
in Preslia > 79 (2007) . - 377-389Essl, Franz (1973-) 2007 From ornamental to detrimental? The incipient invasion of Central Europe by Paulownia tomentosa. Preslia, 79: 377-389.Documents numériques
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