Search results for "PHYTOSOCIOLOGY"
showing 10 items of 85 documents
THE CLASS QUERCO-FAGETEA SYLVATICAE IN SICILY: AN EXAMPLE OF BOREO-TEMPERATE VEGETATION IN THE CENTRAL MEDITERRANEAN REGION
2012
A syntaxonomical revision of the class Querco-Fagetea sylvaticae in Sicily, based on literature data and unpublished relevés, is presented. This class groups the mesophilous woods characterized by the dominance of deciduous trees (e.g. Fagus sylvatica, Quercus sp. pl., Acer sp. pl.), and more rarely by conifers (Taxus baccata, Pinus nigra subsp. calabrica), as well as by other broadleaved trees, such as Betula aetnensis, Populus tremula, Castanea sativa. In Sicily, these woody communities are widespread in the northern and north-eastern districts of the island, chiefly on the highest peaks (Madonie, Nebrodi, Peloritani, and Etna). This class is represented in Sicily by two, both flor…
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 w Słowińskim Parku Narodowym
2017
Zbiorowiska z klasy Utricularietea intermedio-minoris DEN HARTOG et SEGAL 1964 em. PIETSCH 1965 należą do wyspecjalizowanych pod względem ekologicznym fitocenoz, występujących w wodach oligotroficznych oraz dystroficznych na podłożu torfowym. Polsce należą do grupy zbiorowisk bardzo słabo zbadanych. W 2014 r. na terenie Słowińskiego Parku Narodowego zbiorowiska z klasy Utricularietea intermedio-minoris zostały stwierdzone w dystroficznym zbiorniku wodnym koło miejscowości Gać. Są to: Sparganietum minimi (współrzędne geograficzne 54°69’05,65’’ N, 17°50’40,42’’ E) oraz Scorpidio-Utricularietum minoris (współrzędne geograficzne 54°69’06,52’’ N, 17°50’50,29’’ E). Akwen, w którym stwierdzono fit…
Contributo alla conoscenza della vegetazione e del paesaggio vegetale della Riserva Naturale “Monte Cofano” (Sicilia occidentale).
2008
It is here presented the results of a study of the phytosociological and plant landscape of Mount Cofano Natural Reserve (Custonaci, Trapani) together with a cartographic representation to a scale of 1:10000 (reduced to a scale of 1:20000). The studied area is localised along the western side of Sicily island and it is spread out for 537,5 ha, dominated by Mt. Cofano rocky promontory (659 mts.), regarded as one of the most interesting biotopes of the regional territory linked to its floristic, zoological and environmental features. From a geolithological point of view, the area is characterized by carbonathic substrata relative to Monte Sparacio-Monte Cofano and Monte Speziale-Monte Palatim…
The forest vegetation from the Garda lake
1998
A study about the forest vegetation occurring along the shores of the Garda lake is presented. The investigation emphasized a noteworthy vegetation diversity, related both to the habitat heterogenity and to the still present traces of several climatic changes that affected the area beginning from the Quaternary period. The examinated woodlands are the result of a compenetration between evergreen characteristic species of the Quercetea ilicis class, representing relicts of the climacic vegetation during the peak of the post-glacial anathermic phase, and deciduous mesothermophilous elements belonging to the Querco-Fagetea class order, which better reflect the present macroclimate. On the basi…
A syntaxonomical survey of the Sicilian dwarf shrub vegetation belonging to the class Rumici-Astragaletea siculi
2005
Basing on literature data and unpublished relevés from Sicily, a survey of the syntaxa belonging to the class Rumici-Astragaletea siculi Pignatti & Nimis 1980 em. Mucina 1997 (= Cerastio-Carlinetea nebrodensis Brullo 1984) is presented. The class groups orophilous plant communities dominated by dwarf- shrubs, often with a pulvinate and thorny growth form. The class is represented in Sicily by two orders: Rumici-Astragaletalia siculi Pignatti & Nimis 1980, including the sole alliance Rumici-Astragalion siculi Poli 1965, restricted to Mount Aetna, and Erysimo-Jurinetalia bocconei Brullo 1984, including two alliances: the acidophilous Armerion nebrodensis Brullo 1984 and the basiphilous Cerast…
The Braun-Blanquet project: evaluating and characterizing European vegetation alliances
2014
European tradition on vegetation classification provides an extraordinary legacy for understanding biodiversity. However, this classification lacks explicit data on vegetation attributes, especially if we extend national or regional concepts to a continental perspective. An additional effort for evaluating and characterizing European vegetation types is therefore needed, and the data contained in vegeta tion databases are probably the main tool for these purposes. The BraunBlanquet project is an initiative of the European Vegetation Survey for characterizing veg etation alliances across Europe. By analyzing more than 500,000 vegetation plots from 22 European countries, we developed a fra…
Classifying plant communities and mapping their potential distribution using very large, heterogeneous, georeferenced datasets: the case study of the…
2014
In recent years, the scientific community has made significant efforts in order to create georeferenced vegetation databases (Global Index of Vegetation Plot Databases). These databases are useful to carry out assessments of the state of bio diversity, conservation of species and habitats, dispersion of alien species and as a support for the planning of land and protected areas. In this context, Italy has given birth to its own project called VegItaly, coordinated by the Italian Society of Vegetation Science and conducted by several research groups, in order to develop a uniform database for the entire country. Within this framework we have created a georeferenced database of phytosociolo…
The Lygeo-Stipetea class in Sicily
2009
Syntaxonomic survey of the class Pegano-Salsoletea in Italy
2012
After a general outline on the syntaxonomical framework of the class Pegano harmalae-Salsoletea vermiculatae Br.-Bl. & O. Bolos 1958, the occurrence of this vegetation in the Italian territory is examined. In Italy, this vegetation is mostly found on clayish or marly substrata, particularly if slightly enriched with nitrates and chlorides. With reference to the Rivas-Martı´nez bioclimatic classification, the Italian stands have an infra- to thermo-Mediterranean thermotype (marginally up to the meso- Mediterranean one) with dry or arid ombrotype. In particular, this vegetation is well represented in Sicily, while in Sardinia and along the Italian Peninsula, it progressively becomes more rare…
Nymphaeetum candidae Miljan 1933 in Poland
2011
This paper presents the distribution, floristic composition and ecological requirements of the water plant community <em>Nymphaeetum candidae</em> Miljan 1933, belonging to the <em>Potametea</em> class. Until present this community has been reported only from north-eastern Poland. During present studies it was stated also in the south-western part of the country. <em>Nymphaeetum candidae</em> is considered to be a rare and endangered plant community in several countries of Central Europe.