Search results for "Botanica"

Fungal biodiversity in old-growth forests of Sicily: preliminary results

2014

According to several authors an old-growth forest in Italy is a natural forest in which human disturbance is absent or negligible, and in which natural dynamics create a mosaic of all the forest regeneration phases, including the senescing one. Such phase is characterized by large old trees, deadwood (snags logs and coarse woody debris) and a vascular plant species composition that is consistent with the bio-geographical context and it includes highly specialized taxa related to the small-scale disturbance and the microhabitats resulting from structural heterogeneity. Unmanaged forests are the main refugee for rare and endangered species, including fungi. In Sicily, 472 hectares were recogn…

FUNGAL DIVERSITY IN URBAN FOREST ECOSYSTEMS

2014

In past and recent times the anthropic pressure strongly influenced the dynamic of forest ecosystems in Europe and led to a drastic decrease of forest cover and distribution mainly in unmanaged areas. The term “urban and community forests” refers to the trees and forests found in urbanized settings, in the center of cities and towns, in suburbs and rural ommunities, and at the edge of wild lands. Trees in the urban environment are subjected to a number of stresses which are very different from those suffered by trees in typical rural conditions. Biodiversity has been reduced in urban areas through ecosystem destruction, degradation, and fragmentation of remaining ecosystems. Recent investig…

I funghi nella Strategia Globale per la Conservazione delle Piante

2009

I funghi, nonostante siano inseriti in un Regno a parte, sono stati riconosciuti come organismi utili per la definizione di alcune azioni nell’ambito della GSPC (Global Strategy for Plant Conservation). Con l’inserimento del termine generico di “lower plants groups” si è lasciata libera scelta ai Paesi che hanno aderito alla GSPC di valutare l’opportunità di estendere alle crittogame le azioni già in atto per le piante vascolari. Come evidenziato nel recente rapporto sullo “Stato della Biodiversità in Italia” (1) la diversità dei funghi è quantificabile in 4.296 basidiomiceti, tra cui 56 taxa con possibili caratteristiche di endemicità, 12 taxa esotici e 87 rari, minacciati e/o a rischio di…

Contribution to the knowledge of fungal diversity in the archaeological park of Selinunte (S.-W. Sicily)

2012

The Archaelogical Park of Selinunte (S.-W.- Sicily) is included in the SIC (Sites of Community Interest) named “Dunal system Capo Granitola, Porto Palo e Foce del Belice” (code ITA010011). It includes a dunal system that is steadily towards the inland with sandy substrates which tend to characterize little evolved soils on silico-arenaceous matrix with alkaline pH. The climate of the site belong to the thermo-mediterranean belt (annual average temperature around 18 ° C), and upper dry ombrotype (average annual rainfall of 500 mm) [1]. The biotope also includes wetlands, Pinus halepensis Miller and Eucalyptus camaldulensis Dehnh reforestations, evergreen sclerophyllous vegetation with apreva…

Fungal Diversity in the Mediterranean Area

2020

Fungi are a group of organisms with a high level of diversity. Macrofungi have long been considered as food for humans, but after the Rio de Janeiro Convention in 1992, they were recognized as playing a key role in maintaining the balance of ecosystems. In addition to the socioeconomic aspects and their commercial exploitation, the conservation of fungal biodiversity is now fundamental in view of their medicinal properties and biological peculiarities. This review aims to provide the most comprehensive overview of the presence of these organisms in the Mediterranean area and includes the most recent investigation in forestry, biological control, molecular phylogeny, biogeography, speciation…

Mediterranean plant germination reports – 3

2021

This is the third issue of the series of germination reports from Mediterranean areas (sensu Med-Checklist). It comprises germination protocols for 40 taxa: Teucrium from Sardinia by M. Porceddu & al. (Nos. 46-47); Campanula from North Italy by S. Villa & al. (No. 48); Anacamptis from Greece by S. Oikonomidis & C. A. Thanos. (No. 49); Astragalus, Iris, Jacobaea, and Klasea from central Italy by V. Di Cecco & al. (No. 50-53); Drimia, Periploca, Asparagus, Myrtus, and Pancratium from Malta by J. Buhagiar & al. (Nos. 54-58); Thymus from Sicily by G. Gugliuzza & al. (No. 59); Agrostemma, Bupleurum, and Xeranthemum from North Italy by A. Cucchietti & al. (Nos. 60-62);…

Annales Confederationis Europaeae Mycologiae Mediterraneensis 2009 - XVII Giornate CEMM. Cefalù (Palermo)

2012

The effect of grazing in a Mediterranean forest ecosystem

2010

The florula of hypersaline habitats in Central Mediterranean and its biological traits

2018

Salinity is one of the most widespread soil degradation processes. In fact in saline soils uneven temporal and spatial water distribution and localized high concentration of salts occur, characterizing restricted habitats where most of the present organisms are halophilic or salt tolerant. Soils could be classified hypersaline when salt concentration exceeds certain thresholds (1, 2). For this study were analysed 10 hypersaline soil localities from Sicily (Birgi, Isola Lunga, Salinelle Marsala, Capo Feto, Piana del Signore, Vendicari) and Tunisia (Qurba, Khniss, Ras Dimas, Chebba). These areas are temporarily flooded in autumn and winter, with longer permanence of water in some zones. Salt …

Osservazioni sulle strategie riproduttive dei taxa appartenenti al gruppo di Limonium articulatum (Plumbaginaceae)

2014

Limonium articulatum (Plumbaginaceae) e le specie affini costituiscono un gruppo tassonomico riconosciuto da diversi autori che si rinviene lungo le coste della Corsica, Sardegna e dell’Arcipelago Toscano. In concomitanza con indagini morfometriche, sono state condotte osservazioni sulla biologia riproduttiva di queste specie su materiale d’erbario. Nelle specie a più ampia distribuzione, L. articulatum e L. contortirameum, si sono osservate solo combinazioni autoincompatibili. Lo stesso in L. caprarie, L. corsicum, L. strictissimum e L. tarcoense. In L. coralliforme, L. dolcheri, L. florentinum, L. tibulatium e L. ursanum sono state osservate combinazioni autofertili. Non si sono verificat…