Search

Ecological regions or ecoregions derive from ecological classification of land and represent broad and discrete ecologically homogeneous areas within which natural communities and species interact with the physical elements of the environment. The aim of this paper is to define the ecoregions of Italy, southern Europe, based on a robust methodological process for classification and mapping. The ecoregions of Italy comprise 2 Divisions, 7 Provinces, 11 Sections and 33 Subsections and constitute the first comprehensive ecological classification of the country that integrates accurate and updated cartographies and knowledges on climate, vegetation, land units and biogeography. This classification has the strength to be adopted as a proper framework for ecological modelling, biodiversity conservation policies and sustainable territorial planning at the national and subnational level. [ABSTRACT FROM AUTHOR]

The Vegetation Prodrome of Italy was promoted in 2012 by the Italian “Ministry of Environment, Land and Sea Protection”, in collaboration with the “Italian Society of Botany”, to provide a comprehensive and systematic catalogue and description of Italian plant communities. The Prodrome that is presented in this paper is the first full organic synthesis of the vegetation of Italy at the alliance syntaxonomic level. It fulfils several needs, the main one being a unified and comprehensive national framework that may make an important contribution to the definition of the European Vegetation Prodrome. Syntaxonomy, as well as taxonomy, is sometimes based on considerations that may in part diverge: several authors tend to favour models that are divisive or aggregative to a greater or lesser extent in terms of flora, biogeography and ecology. These different points of view stimulate the scientific debate and allow the adoption of a framework that is more widely supported. The Prodrome includes 75 classes, 2 subclasses, 175 orders, 6 suborders and 393 alliances. The classes were grouped into nine broad categories according to structural, physiognomic and synecological elements rather than to syntaxonomic criteria. The rank, full valid name, any synonymies and incorrect names are provided for eachsyntaxon. The short declaration highlights the physiognomy, synecology, syndynamics and distribution of the plant communities that belong to thesyntaxon. The Prodrome of the Italian Vegetation is linked to the European Strategy for Biodiversity, the European Habitats Directive and the European Working Groups related to the ecosystems and their services. In addition to basic applications, the Prodrome can be used as a framework for scientific research related to the investigation of the relationships between plant communities and the environmental factors that influence their composition and distribution. [ABSTRACT FROM PUBLISHER]

Semi-natural dry grasslands are habitats of high conservation concern. These ecosystems have not been extensively explored in the Tyrrhenian sector of the Italian peninsula, particularly in the Submediterranean climatic region. In order to address this issue and to define the synecology, syndynamics and syntaxonomy of calcareous grasslands in this area, we considered 127 phytosociological relevés. Our sampling was performed in the Lazio region according to a stratified sampling scheme based on homogeneous land units, defined by means of an ecological land classification process. We analyzed the vegetation data using multivariate methods. Two new associations, whose typical aspects occur in the mesotemperate phytoclimatic belt, were identified:Erysimo pseudorhaetici-Dasypyretum villosi (Taenianthero-Aegilopion) and Scorpiuro muricati-Brometum erecti (Phleo-Bromion). Phytoclimatic belts within the Submediterranean region cause a significant degree of differentiation within Scorpiuro-Brometum, which was described at the subassociation and variant levels. The overall relevance of therophytes represents the most important feature distinguishing Scorpiuro-Brometum from the published Bromus erectus associations. At a finer scale, the presence of the two physiognomically different grassland communities is related to different soil types. All these communities are dynamically linked to Quercus virgiliana and Q. pubescens woods, and contribute to the coenological differentiation of the vegetation series related to such woodlands. [ABSTRACT FROM AUTHOR]

In this article, we discuss the relationships between plant sociology and ecology and highlight the potential of plant sociology for ecological modelling and environmental assessment. The classification criteria for plant communities (characteristic combination of species, specific relationships with the physical environment, particular chorological and dynamical features) assign strong indicator value to phytosociological units. Moreover, the modern approach of plant sociology, which spans from individual communities to vegetation series and geosigmeta, offers the opportunity to interact under a landscape ecological perspective. Within this general context, we particularly refer to the field of ecological land classification and present a research project on the ecoregions of Italy, which is based on the National Map of Vegetation Series and on bioclimatic, biogeographical, lithological, and geomorphological data. [ABSTRACT FROM PUBLISHER]

This paper defines a protocol for the study of leaf morphology and morphometric relationships among Quercus frainetto, Quercus robur, Quercus petraea and Quercus pubescens. Leaf shapes were investigated in an attempt to characterize and discriminate among these four species. Landmark and outline data were compared in order to ascertain their relative efficacy for describing variation in leaf morphology. MANOVA was performed to assess intra-specific differentiation and to compare the distribution of variance in individuals, populations and species. A strong correlation was found between landmark and outline datasets of the four species: both methods proved capable of discriminating among the four species. Finally, a Two-Block Partial Least-Squares analysis was performed for each species in order to assess the correlation between intra-specific shape variation and environmental factors. [ABSTRACT FROM AUTHOR]

The vegetation communities of the karst-tectonic basins of the Majella massif alpine belt were studied using the phytosociological methods, and analysed from coenological, synchorological and syntaxonomical viewpoints. During the field-work, 115 relevés were performed using the phytosociological approach of Braun-Blanquet, and these relevés were further subjected to multivariate analyses. Eight clusters of relevés resulted from the numerical classification. The plant communities identified in the study area were ascribed to the following five associations, two sub-associations and one community type: Leontopodio – Seslerietum juncifoliae (ass. nova); Helianthemo – Festucetum italicae (ass. nova); Gnaphalio – Plantaginetum atratae ; Taraxaco – Trifolietum thalii gnaphalietosum magellensis (subass. nova); Luzulo italicae – Nardetum, Carici – Salicetum retusae; Saxifrago – Papaveretum julici, Saxifrago – Papaveretum androsacetosum (subass. nova), Plantago atrata and Leontodon montanus community. The distribution of these communities within the karst basins was found to be related to variations in topographic and geomorphological parameters, such as altitude, slope, soil availability and stoniness. All the new associations proposed in this paper belong to the suballiance Leontopodio – Elynenion and to the alliance Seslerion apenninae , both of which are endemic to the central Apennines. In order to compare the plant community types identified within the Majella massif to similar associations found in the rest of the Apennine chain, synoptic tables were constructed. Finally, a comparative phytogeographical analysis of the alpine belt vegetation of the Apennines, Dinarides, southern Balkans and eastern Alps is presented. [ABSTRACT FROM AUTHOR]

Abstract This paper aims to discuss the role of plant sociology in the framework of ecology and biodiversity conservation, and to present an experimental approach that promotes the integration of vegetation science with landscape ecology. A new model of deductive plant sociology at the landscape level is proposed, which is rooted in the traditional approach but relates to the landscape ecology of the ‘European school’ for its emphasis on landscape classification. Using the case study of the Municipality of Rome, a methodological process for defining and mapping vegetation series, geosigmeta and landscape units is proposed, based on the overlay of climatic, lithomorphological, floristic and vegetation information, the latter in its syntaxonomical and dynamical aspects. At the landscape level plant sociology can significantly contribute to formalize ecological models based on complex isofunctional units and helpful in environmental management and planning. [ABSTRACT FROM AUTHOR]

The present paper deals with some nomenclatural notes regarding two important southern Italian beech phytosociological associations such as Aquifolio-Fagetum and Asyneumato-Fagetum which were described about 30 years ago and which still represent the most widespread Fagus sylvatica communities in southern Italy. According to the ICPN, Aquifolio-Fagetum is confirmed to be a nomen illegitimum. This name must be substituted with the name Anemono-Fagetum (Gentile 1970) Brullo 1983. Moreover, Aremonio-Fagetum Hofmann 1961, a beech forest type very similar to the Aquifolio-Fagetum is a nomen invalidum. As far as the Asyneumato-Fagetum Gentile 1970 is concerned, in our opinion it represents a later syntaxonomical synonym of the Ranunculo brutii-Fagetum Bonin 1967. Geranio-Fagion Gentile 1970 and Lamio-Fagenion Gentile 1970 are typified. A new suballiance named Doronico-Fagenion (describing the beech community types of the low montane belt), deriving from the lowering of the rank of the former alliance Doronico-Fagion Ubaldi et al. ex Ubaldi 1995, is proposed. [ABSTRACT FROM AUTHOR]