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Phytosociological remarks on residual woodlands of Laurus nobilis in Sicily / Lorenzo Gianguzzi in Lazaroa, n° 31 (2010) 

Public [article]  inLazaroa > n° 31 (2010) . - pp 67 - 84 Titre : Phytosociological remarks on residual woodlands of Laurus nobilis in Sicily Type de document : Article/Communication Auteurs : Lorenzo Gianguzzi, Auteur ; Agostino d' Amico, Auteur ; Salvatore Romano, Auteur Année de publication : 2010 Article en page(s) : pp 67 - 84 Note générale : bibliographie Langues : Espagnol (spa) Descripteur : [Termes IGN] laurus nobilis [Termes IGN] phytosociologie [Termes IGN] Sicile [Termes IGN] unité phytosociologique [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) A phytosociological study was done of Laurus nobilis woodlands in Sicily. The analysis, based on 18 releves, supports the definition of a new syntaxon (Acantho mollis-Lauretum nobilis ass. nov.), considered as a vicariant of similar vegetation aspects described in other Mediterranean areas (Iberian and Italian peninsulas). The study mainly includes some unpublished sites where polycormic individuals of laurel, sometimes reaching 13-15 meters in height, dominates the tree layer. This vegetation is also characterized by some laurophyllous species (Hedera helix, Rhamnus alaternus, Smilax aspera and sometimes Viburnum tinus) and lianas (Rubia peregrina var. longifolia, Asparagus acutifolius, Tamus communis, Clematis vitalba, Calystegia sylvatica and Rubus ulmifolius), while in the undergrowth comprises particularly various broadleaved elements such as Cyclamen hederifolium subsp. confusum, and Acanthus mollis subsp. mollis, both included in the characteristic species combination together with Pistacia terebinthus and Orobanche hederae. The coenosis is typical of the humic soils, often rich in lithic components, of shaded ravines and peririparian environments, in the thermo- and mesomediterranean thermotype (Mediterranean pluviseasonal oceanic bioclimate). In view of the relictual status of this vegetation - also included as a "Priority Habitat" in Council Directive 92/43/EEC - we underline the need for a suitable protection and conservation of these small, fragmented and isolated patches. Numéro de notice : A2010-607 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82457 [article]

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Place, rôle et valeur historique des éléments laurifolies dans les végétations préforestières et forestières ouest-méditerranéenne / Marcel Barbero in Annali di Botanica, n° 52 (1994)

Public [article]  inAnnali di Botanica > n° 52 (1994) . - pp 81 - 133 Titre : Place, rôle et valeur historique des éléments laurifolies dans les végétations préforestières et forestières ouest-méditerranéenne Type de document : Article/Communication Auteurs : Marcel Barbero, Auteur ; Pierre Quézel, Auteur Année de publication : 1994 Article en page(s) : pp 81 - 133 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] Arbutus unedo [Termes IGN] Aurès, massif des [Termes IGN] Buxus sempervirens [Termes IGN] Cedrus (genre) [Termes IGN] chênaie [Termes IGN] Corse [Termes IGN] Daphne laureola [Termes IGN] forêt méditerranéenne [Termes IGN] forêt sclérophylle [Termes IGN] hêtraie [Termes IGN] ilex aquifolium [Termes IGN] Kabylie [Termes IGN] Languedoc [Termes IGN] laurus nobilis [Termes IGN] Maroc [Termes IGN] Provence (région naturelle) [Termes IGN] Quercus pubescens [Termes IGN] sapinière [Termes IGN] taxus baccata [Termes IGN] viburnum tinus [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) The authors characterize the main preforest and forest formations in the Western Mediterranean where laurifolious species are present. They successively envisage the distribution of these elements in sclerophyllous, deciduous and high altitude coniferous forests to demonstrate that laurifolious species are undeniably at their peak development in deciduous oak forests. From their work it appears that the best preserved structures have undergone either a rational silvicultural management for a very long lime, or have been spared from intensive human activity (mountain peaks in Algeria and Morocco, sites at cliff bases in France). The actual distribution of these elements makes apparent the existence of four groups, two of which have a high bioclimatic value: — the thermo-Mediterranean group with deciduous oaks and Laurus nobilis; — the upper Mediterranean group, the supra-Mediterranean with deciduous oak forests, fir forests and cedar forests and the mountain Mediterranean group with yew and holly; — the Macaronisian laurifolious species group with Laurus azorkas and Prunus lusitanica; — the fourth group includes structures directly conditioned by human degradation (Viburnum tinus and Arbutus unedo shrublands, Buxus sempervirens and Buxus balearica shrublands). Historic factors provide concurring results and lead to the conclusion of a probable extension of these elements towards the Atlantic within deciduous oak forests during climatic phases more humid than these found today. Numéro de notice : A1994-028 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82211 [article]