1,721,142 research outputs found
Small-scale and high-resolution in geobotanical mapping: the case study of Sicily.
No full textSmall-scale and high-resolution in geobotanical mapping: the case study of Sicily
A phytosociological analysis of the Olea europaea L. var. sylvestris (Mill.) Lehr. forests in Sicily
No full textThis paper presents a phytosociological study on the forest vegetation of Olea europaea var. sylvestris of Sicily and of the smaller minor islands. In Sicily, Oleaster formations show considerable climacic potentiality in the bioclimactic belts between the infra- and the thermomediterranean with single edapho-climacic penetrations that are also in the mesomediterranean; however, these were largely destroyed by man in order to make room for crops. Furthermore, the residual expressions of the Oleaster forests are limited, and often exist as regenerated woodland made possible by the abandonment of agricultural land; they are often small forest nuclei–high maquis, woods and micro-woods–with a more or less discontinuous distribution within the agricultural landscape. The fieldwork is supported by 120 phytosociological surveys carried out in various areas of Sicily, which were statistically analyzed and compared with other published data from surveys of other communities that have been described for the Tyrrhenian (Sardinia and Corsica) and Balearic Islands up until now. The phytosociological and statistical analysis has led to the description of three new associations two of which are classified in the Oleo-Ceratonion alliance (Ruto chalepensis-Oleetum sylvestris and Chamaeropo humilis-Oleetum sylvestris), the third in the Erico-Quercion ilicis alliance (Calicotomo infestae-Oleetum sylvestris)
L’Isola di Pantelleria., pp. 396-399. In BLASI C. & BIONDI E., La flora in Italia, 2017. Ministero dell'Ambiente e della Tutela del Territorio e del Mare, pp. 704 Sapienza Università Editrice, Roma.
Full text linkNotes on syntaxonomy, chorology and dynamics of Olea europaea L. var. sylvestris (Mill.) Lehr. forests in the Mediterranean landscape
Full text linkDiversity and conservation in wild and cultivated Capparis in Sicily
Full text linkThe taxonomy, distribution and ecology of the polymorphic Capparis spinosa L. in Sicily are discussed. C. spinosa subsp. rupeslris (Sibth. & Sm.) Nyman , a leathery-Ieaved, pendulous-branched shrub is widespread on carbonate, volcanic and gypsaceous outcrops. Subsp.
spinosa, a thorny chamaephyte or hemicryptophyte with creeping branches, is mainly
distributed in south-central parts of Sicily, on clay and natric soils under xerophilous
conditions. Attention is drawn to a remarkable environment-induced variation within the latter subspecies. The heterogeneity of the cultivated forms of subsp. rupestris on the island of Pantelleria (Strait of Sicily) appears to be linked to crossing and introgression with wild populations
The Natural Vegetation of Residual Wetlands in the Hinterland of Western Sicily (Italy)
Full text linkAn overview of the wetland vegetation of the hinterland of western Sicily, between the
hills located south of the Palermo Mts. and the Sicani Mts., is presented herein. This study was
conducted according to Braun-Blanquet’s phytosociological method, through a survey carried out
mainly within six important biotopes: (1) Gorgo Lungo (“Bosco Ficuzza”; municipality of Godrano);
(2) Gorgo Marosa (on the southern side of Rocca Busambra; municipality of Godrano); (3) Gorgo
di Piano Scala (on the northern side of Mt. Cardellia; municipality of Corleone); (4) and (5) Gorgo
Carcaci and Gorgo Carcaciotto (both on the south-eastern slope of Mt. Carcaci; municipality of
Castronovo di Sicilia); and (6) Gorgo S. Andrea (municipality of Castronovo di Sicilia). A vegetation
analysis was carried out on the basis of 107 field relevés, together with other data taken from scientific
literature. A total of 28 plant communities were identified, between hydrophytics of the classes
Lemnetea minoris (3 associations) and Potamogetonetea pectinati (6 associations), helophytics of the
Phragmito-Magnocaricetea class (14 associations and 1 community), ephemeral of the Isöeto-Nanojuncetea
class (2 communities) and perennial herbaceous vegetation of the Molinio-Arrhenatheretea class
(1 association and 1 community). Anew syntaxon is also described (Callitricho obtusangulae-Glycerietum
notatae ass. nova), as an endemic association of the hinterland of western Sicily, referred to as the
Alopecuro-Glycerion spicatae alliance. For all surveyed communities, new insights into syntaxonomy
and diagnostic taxa are provided, as well as for the floristic composition, synecology, syndynamism
and synchorology of the aquatic vegetation of western Sicily
The flora of the Natura 2000 site “ITA020006 - Capo Gallo” (NW Sicily, Italy) and the effects of fire to its composition
No full textThis study refers to the Natura 2000 site “ITA020006 Capo Gallo”, near Palermo (NW Sicily), whose territory is heavily affected by fires, which have been repeated periodically in the last 60 years. The last of these, which occurred on 24 July 2023, was of strong impact for the flora and biocenoses. We aimed to study the vascular flora and evaluate the impact of fire by examining coverage trends. Our focus included both short-term effects (identifying species that thrive in the post-fire environment) and medium-term consequences (determining which species establish themselves on the altered landscape over time). To this end, we conducted a thorough inventory of the vascular flora, with field investigations covering the last ten years. A total of 720 specific and subspecific taxa currently occurring in the area have been reported, including 45 endemic and 40 alien taxa. For each taxon, the effects of fire, in terms of variation of frequency were estimated. For several taxa of biogeographic interest, more in-depth considerations are presented in the notes. Regarding the last event that occurred in 2023, the majority of therophytes were significantly advantaged; this was to the detriment of taxa related to other biological forms (phanerophytes, chamaephytes and hemicryptophytes), resulting overall in decrease
Contribution to the knowledge of Mediterranean wetland vegetation: Lemnetea and Potamogetonetea classes in Western Sicily
Full text linkThe freshwater aquatic vegetation of the Lemnetea and Potamogetonetea classes in Western Sicily was surveyed and analyzed. 85 lakes and small pools were investigated collecting 147 phytosociological unpublished relevés to integrate the very scarce available data (only 3 relevés). By applying statistical analyses on abundances data and on the bases of physiognomy and dominant species, two alliances (Lemnion minoris and Stratiotion) and four different coenoses have been identify for the Lemnetea class; while 11 associations, assigned to two orders (Potamogetonetalia pectinati and Callitricho hamulatae-Ranunculetalia aquatilis) and four alliances (Potamogetonion, Nymphaeion albae, Ranunculion aquatilis and Ranunculion omiophyllo-hederacei) have been recognized for the Potamogetonetea class. A new association (Junco bufonii-Ranunculetum omiophylli ass. nov.) and a new subassociation (Ranunculetum peltati ranunculetosum rionii subass. nov.) have been proposed, whereas other six vegetation units were found to be new for the study area (Potamogetono-Ceratophylletum submersi, Potamogetonetum pusilli, Ranunculetum aquatilis, Ranunculetum peltati and
Ranunculetum rionii, Lemno-Callitrichetum obtusangulae). For all the coenoses recognized, new insights on the floristic composition, syntaxonomy, synphiognomy, synecology and synchorology are reported, offering a reasoned overview of the aquatic vegetation of the western sector of the main Mediterranean island
Bupleurum elatum. – In PASTA S., PEREZ-GRABER A., FAZAN L. & MONTMOLLIN B. DE (Eds), The Top 50 Mediterranean Island Plants, UPDATE 2017: http://top50.iucn-mpsg.org/species/15. IUCN/SSC/ Mediterranean Plant Specialist Group. Neuchâtel (Switzerland). E-book and on line. 141 pp. top50.iucn-mpsg.org
No full text- …
