Global ETD Search
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Showing 1 to 20 of 24 for “"Settore BIO/03 - Botanica Ambientale e Applicata"”.
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Le piante aliene nel Mediterraneo: comparazione tra Sardegna, Corsica e isole circumsarde.
… that of other territories belonging to the same biogeographical region and at the analysis of the most vulnerable habitats at risk of biological invasion. The first part of the work has been focused on the comparison of the exotic flora of Sardinia with that of another insular system, Corsica, in …
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La flora dell'iglesiente (Sardegna SW)
… e vegetazione di territori definibili in termini biogeografici a livello di distretto o sub-distretto floristico, in modo da giungere ad una conoscenza botanica della Sardegna meridionale che possa essere la base per l’elaborazione di adeguate strategie di conservazione della sua biodiversità.
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Flora e paesaggio vegetale del Sarrabus-Gerrei (Sardegna sud orientale)
… devoniche e siluriane. Dal punto di vista bioclimatico i territori indagati sono compresi in termotipi variabili dal termomediterraneo inferiore al mesomediterraneo superiore e ombrotipi che vanno dal secco inferiore all’umido inferiore. Le ricerche sulla flora hanno permesso di censire …
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PLANT AND ARTHROPOD COMMUNITIES OF ALPINE ICE-RELATED LANDFORMS: ECOLOGICAL AND BIOGEOGRAPHIC IMPORTANCE
… – refugia for a cold-adapted and threatened biodiversity - because of the lack of knowledge that still affects these habitats (Gobbi et al. 2021). The study points out the urgency in planning this research due to the risk of total disappearance of these habitats in the current scenario of …
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Origini e diffusione dell’agricoltura in Sardegna: studio dei resti vegetali della preistoria
… Chapter 3 presents the results of archaeobotanical analyzes from Chalcolithic period in Sardinia, the analysis have focused on the archaeological site of Canelles. Chapter 4 presents data on agriculture practiced in Sardinia during the Bronze Age, in particular, provides an overview on …
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Morpho-colorimetric and non-parametric analysis in statistical classification of vascular flora
… proposed are developed and optimized for botanical seeds, but they are suitable to a larger class of morphological classification problems. In order to make these algorithms usable and executable, functions have been created in R language and published.
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Populations studies on two endemic taxa of southwestern Sardinia: Dianthus morisianus Vals. (Caryophyllaceae) and Anchusa littorea Moris (Boraginaceae)
… and their rarity and the investigation of each biology aspect about these psammophilous endangered plants yielded the information needed in order to identifythe critical aspects that affect the survival and toguide the proposal and implementation of conservation measures.
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POPULATION GENOMICS, DISTRIBUTION AND REPRODUCTIVE ECOLOGY OF AN ITALIAN STENO-ENDEMIC CHASMOPHYTE, CAMPANULA RAINERI
Plant species distributions are the result of climatic and evolutionary histories. Range restriction in steno-endemic species often results from climate oscillations that have reduced the extent of suitable habitat or limited species dispersion across ecological barriers. Narrow endemics may also …
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Integrated in situ and ex situ approach for Gentiana lutea L. ssp. lutea conservation
… contribute to a mechanistic understanding of the biological effects of climate change. Finally, the criteria established by the IUCN that are widely employed as the gold standard for information on the conservation status of species were applied at regional scale for G. lutea. The assessment …
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Population genetic analyses of Ferula gr. communis and Ruta gr. corsica in the Tyrrhenian area
… respectively). Pairwise Fst values (0.035 – 0.351) indicated a low-moderate differentiation for most pairs of populations. AMOVA revealed that 80% of the genetic variation resides within populations, while only 4% is due to differences among the two species. The analyses of the spatial …
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Distribution patterns of riparian plant species across river of Sardinia and Tuscany
… floras and to investigate the role played by biogeography in driving riparian plant species distribution. Despite many floristic similarities between the two areas, always emerges the high floristic heterogeneity and the regional differentiation as the main variable affecting the distribution …
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Ecology, Ecophysiology and Morpho-colorimetric analysis of wild grapevines populations of Sardinia and relationships with some autochthonous cultivars
… and represents an interesting laboratory, from biological, historical and cultural perspectives, where studies on ecology, ecophysiology and morpho-colorimetric analysis of wild grapevines populations and relationships with some autochthonous cultivars can be carried out. The peculiar insular …
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Seed dormancy and germination niches of Mediterranean species along an altitudinal gradient in Sardinia
… Scanner Calorimetry analysis to determine their biophysical and physiological characteristics. Through this study, the Mediterranean climate in Sardinia was characterized and seed germination responses of different Mediterranean species, as well as among populations of the same species, in …
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Archaeological seeds and local varieties of edible fruits: morphology through time
This research is divided in five chapters: [CHAPTER 1] describes the research carried out on waterlogged plant remains from a Late Bronze Age well found near Cabras, in Sa Osa area (Central-West Sardinia). The combination of macro-remain and pollen analyses in this unique context provided important …
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Germination niche of Sardinian endemic species in mountain riparian deciduous forests
The Supramontes region and Gennargentu massif are two of the most interesting territories of Central Eastern Northern Sardinia. Riparian vegetation among mountainous waterways of these territories are mainly constituted by Alnus glutinosa with other associated taxa such as Taxus baccata, Ilex …
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