Search results for " Mediterranean."

Stazioni nuove di Euphorbia hypericifolia (Euphorbiaceae) e di Phyllanthus tenellus (Phyllanthaceae) in Sicilia

2017

New localities for Euphorbia hypericifolia (Euphorbiaceae) and Phyllanthus tenellus (Phyllanthaceae) in Sicily – Two new adventive plants, Euphorbia hypericifolia (Euphorbiaceae) and Phyllanthus tenellus (Phyllanthaceae), are reported in the Palermo’s urban area. These two taxa belonging to closely related families were both already known from the province of Messina (E. Sicily), the first one near the Messina town, the second near Taormina. The new localities expand toward west the Sicilian distribution of the two taxa, so that these appear to likely occur in other urban contexts of the island. Finally, as far as the accession road to the island is concerned, the- se two aliens – that have…

Diversity and Distribution of the Inland Water Decapods of Sicily (Crustacea, Malacostraca)

2022

The current knowledge of Sicilian inland water decapod malacostracans is scarce and an updated synopsis on species distribution is lacking. Therefore, we reviewed the checklist and recent distribution of Sicilian inland water decapods based on published and unpublished records and novel observations with the aim of providing an exhaustive repository, also to be used as a sound baseline for future surveys. Overall, five native decapod species occur in the study area, i.e., the atyid shrimp Atyaephyra desmarestii, the palaemonid shrimps Palaemon adspersus, P. antennarius, and P. elegans, and the freshwater crab Potamon fluviatile, and their current local distributions are described. In additi…

Effect of Organic Fertilizers on Avocado Trees (Cvs. Fuerte, Hass, Lamb Hass) in Western Crete, a Cool Subtropical Region

2022

The market for avocado is one of the fastest expanding worldwide, inclduing the Mediterranean basin. Organic farming systems cannot make use of synthetic fertilizers and therefore rely on several cultural techniques to maintain vigorous young trees and for quick shoot development, satisfactory yield, and fruit quality. We studied the effect of three different organic products (Terra Insecta® (Aeiphoria-Sustainable products of Crete, Chania, Greece), Fruit-Fix®, and AMINO-16® (both products manufactured by EVYP, Sindos, Thessaloniki, Greece) on avocado plants in the cool subtropical area of southern Greece. Three experiments were carried out, two of them on young avocado trees, a…

The impact of alien vascular plants in the aquatic habitats of a mediterranean island: preliminary data and observations in Sicily

2016

As is well known, invasive alien species pose a major global threat to the conservation of biodiversity, causing the extinction of native species and modifying ecosystem functions: this is true also for aquatic habitats, particularly susceptible to invasion due to usually high disturbance regimes and easy dispersal of propagules. The island of Sicily is one of the main hotspots of plant biodiversity, in the center of the Mediterranean basin; it hosts different types of freshwater habitats, both lentic (coastal wetlands, saltworks, temporary ponds, lakes, reservoirs) and lotic (springs, streams, permanent and seasonal rivers). As a first step of our analysis of the effects of the alien vascu…

Low prevalence of the atherogenic small, dense LDL in a mediterranean population. Nutrition, Metabolism and Cardiovascular Diseases

2002

Nutrigenetics, nutrigenomics and phenotypic outcomes of dietary low-dose alcohol consumption in the suppression and induction of cancer development: …

2020

It is known that the intake of alcoholic beverages may impair genetic and epigenetic regulatory events with consequent crucial effects on cell phenotypes and that its association with selected genotypes can lead to a different risk of cancer in the population. The aim of this review is to pick up selected studies on this topic and recapitulate some of the biochemical and nutrigenetic/nutrigenomic aspects involved in the impact of dietary low-dose alcohol consumption on the switching-on or -off of tumorigenic pathways. These include i) the existence of predisposing or protective human genotypes and the relationship between dietary compounds and alcohol in the promotion or inhibition of carci…

COLLEGAMENTI PER UN’IDENTITÀ CULTURALE COMUNE NEL BACINO DEL MEDITERRANEO

2021

Il Mar Mediterraneo può essere considerato il legame comune tra tutti i Paesi che lo circondano. Diversi popoli, culture, arti, mestieri, religioni e tradizioni lo hanno attraversato, forgiando una identità culturale condivisa e differenze che possono essere facilmente rintracciate in molte città e territori. La città mediterranea suggerisce unioni e dissonanze, suggellando il patto di alleanza che ha visto convivere pacificamente una società multietnica e multiculturale, creata anche a seguito di dominazioni imposte. Molte città affacciate sul Mar Mediterraneo, come quelle di Barcellona, Palermo e Skikda, obbligano ancora oggi a una riflessione su quanto appaia evidente la relazione tra i …

Phytosociological characterization of the Celtis tournefortii subsp. aetnensis microwoods in Sicily

2014

A work on the Celtis tournefortii subsp. aetnensis vegetation, endemic species located in disjointed sites in the Sicilian inland, is here presented. It forms microwoods with a relict character established on screes and detrital coverages, on a variety of lithological substrates (volcanics, limestones, quartzarenites). Based on the phytosociological analysis carried out in the territory, these vegetation aspects are framed in the alliance Oleo-Ceratonion, within which a new association (Pistacio terebinthi-Celtidetum aetnensis) is described, in turn diversified in the following subassociations: a) typicum subass. nova, on detrital calcareous cones of the north-western part of Sicily, in the…

Pre-release risk assessment of the egg-parasitoid Gryon pennsylvanicum for classical biological control of Leptoglossus occidentalis.

2013

Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) is a North American conifer seed pest that was accidentally introduced to Europe. In the Mediterranean area, it threatens the production of Pinus pinea Linna- eus seeds. The egg-parasitoid Gryon pennsylvanicum (Ashmead) (Hymenop- tera: Platygastridae), the main natural enemy in the native range of L. occidentalis, was imported from British Columbia to Italy. Pre-release risk assessments were made under quarantine conditions by no-choice tests conducted with na€ıve and experienced G. pennsylvanicum offering single eggs of target and non-target species for varying exposure times (1, 4, 48 h). G. pennsylvanicum successfully parasitize…

Growth and reproduction data of Plesionika narval (Decapoda, Caridea, Pandalidae) off the Island of Ustica (southern Tyrrhenian Sea)

2011

[We here report some data on the biology and population structure of Plesionika narval (Fabricius, 1787) captured along the coast of the island of Ustica in the southern Tyrrhenian Sea. Specimens were collected monthly from January to October 2000 using commercial traps at depths ranging from 15 to 100 metres. The carapace length (CL) of females ranged between 7.0 and 26.0 mm, and between 7.0 and 17.0 mm for males. Three modes were identified in the cumulative frequency distribution for females but only two for males. In females, the third modal value was observed only at the deeper sample sites. The Von Bertalanffy growth parameters and performance index p were K = 0.65 y–1, CL∞ = 27.4 mm …