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Carta della vegetazione 1:5000 e Carta degli Habitat della Riserva Naturale Regionale Tevere-Farfa, con Memoria illustrativa
No full textEditore: Riserva Naturale Regionale Tevere-Farfa. Regione Lazi
Carta della vegetazione 1:5000 e Carta degli Habitat della Riserva Naturale Regionale Lago di Posta Fibreno, con Memoria illustrativa
No full textEditore: Riserva Naturale Regionale Lago di Posta Fibreno. Regione Lazi
The floating island of Posta Fibreno: an example of relic mire in Central Italy
No full textThe lake of Posta Fibreno (S Latium, C. Italy), is a biotope where some outstanding anomalies in the flora and vegetation of the wetlands of peninsular Italy are concentrated. Here the southernmost Italian populations of Sphagnum palustre occur on the small surface of a floating island, a cup-formed core of Sphagnum peat and rhizomes of Helophytes, erratically floating on the water-body of a submerged doline, annexed to the easternmost edge of the lake, characterised by the extension of a large reed bed. A strong correlation between characteristics of the physical environment and the structure of the vegetation on the island, points out the descriptive ability of the communities recorded in the site to reconstruc the genesis of the biotope
RELIC MIRES IN PENINSULAR ITALY AND NATURA 2000
No full textThe study aims to detect patterns of distribution of mires along a geographical gradient. In order to do this, data from Natura 2000 inventories and distributional data for a selection of mire species have been compared. All data are referred to the 20 Regions (Administrative Districts) since distributional records of mire habitats and mire species are not yet available in literature sources. The inventory and mapping are in progress
Esiste una relazione tra le steppe antropogeniche attuali e le steppe-praterie oloceniche della regione mediotirrenica?
No full text
Zonazione altitudinale della vegetazione di alcuni rilievi dell'Appennino meridionale e sue implicazioni fitostoriche
No full textOn the origin of Northern and Southern hemisphere grasslands
No full textThe origin of the grassy habit during the Eocene and the development of C4 grasses during the Miocene/Pliocene boundary are discussed before the origin of primary and secondary grassland in Eurasia and North America are discussed. A comparison shows that both Northern and Southern hemisphere primary grassland originated due to climatic changes to drier conditions during the end of the Eocene, and that modern grassland vegetation types can be traced back to the Oligocene. The Eurasian steppes becomes more fragmented towards the west and south and relicts of primary grassland exists only in the most xerothermic localised habitats in central and western Europe. Secondary grassland clearly due to manmade deforestation, started with the spread of Neolithic husbandry. Southern African grasslands were however not only determined by droughty conditions, but cooler conditions at high altitudes are one of the major driving forces that prevent colonisation by trees of a generally tropical origin
Floristic changes along the topographical gradient in montane grasslands in Monti Picentini (Campania, SW Italy)
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