Search results for "Omologia"
showing 10 items of 602 documents
EFFECT OF Bacillus thuringiensis ON RESPIRATION RATES OF MARINE INTERTIDAL MYTILASTER INTERTIDAL, MYTILASTER MINIMUS (MOLLUSCA, BIVALVIA)
2010
Increasing body of research deals with the impact of agricultural products marine environment. Indeed it is expected to detect insecticides, including the ones for biocontrol, in nearshore marine waters and thus predicting where, when and with what magnitude these impacts are most likely to occur is imperative if we are effectively interested in understanding the role of biological products as Bacillus thuringiensis (Bt) on marine biodiversity. Bivalves are important elements of marine biodiversity and very often they play a role of ecosystem engineers in that many other species structurally depend on their presence. Oxygen consumption through respiration in these organisms varies with natu…
Milichiella lacteipennis: new record for Lampedusa Island (Italy).
2009
The authors report the first record of Milichiella lacteipennis (Loew) (Diptera Milichiidae) in Lampedusa Island (Italy), and give information on its distribution and biology.
Periploca laevigata Aiton subsp. angustifolia (Labill.) Markgraf on Lampedusa Island
2012
Periploca laevigata Aiton subsp. angustifolia (Labill.) Markgraf [synonym: Periploca laevigata Labill.] (Apocynaceae – Periplocoideae sensu Endress & Bruyns 2000) is a Mediterranean-Saharan element growing wild in the low and middle Mediterranean basin and descending southwards to the northern and central Sahara. It is found in North Africa (from Morocco to Egypt), southern Spain, Sicily, Malta, Crete, Lebanon and Syria (Ghrabi 2005). In Sicily it is reported only from some Sicilian Islands: Egadi, Pantelleria, Lampedusa and Linosa (Pignatti 1982). In this paper we report some unpublished data and a summary of information of recent publications on P. laevigata subsp. angustifolia made durin…
Essential oils composition of two Sicilian cultivars of Opuntia ficus-indica (L.) Mill. (Cactaceae) fruits (prickly pear).
2013
The essential oils composition of the skin, pulp and seeds from fruits of two Sicilian cultivars of Opuntia ficus-indica (cv. Sanguigna and cv. Surfarina) has been obtained by hydrodistillation and the possible antioxidant, antimicrobial and semiochemical roles have been investigated comparing the data with those reported in the literature. The presence of antioxidants and antimicrobials found in this study increases the spectrum of compounds that have beneficial properties in O. ficus-indica. In addition, several compounds identified in this study have been reported to influence the behaviour of Ceratitis capitata, a phytophagous pest which causes severe damages to several crops including …
First records of pollinators of two co-occurring Mediterranean Apocynaceae
2011
This article presents results of a field survey of pollinators of two Apocynaceae, Periploca laevigata subsp. angustifolia (Labill.)Markgraf (Periplocoideae) and Caralluma europaea (Guss.) N.E.Br. Asclepiadoideae) co-occurring on Lampedusa Island, Mediterranean sea. Fifteen species within nine families of Diptera have been identified as pollinators of the two plants. The families involved are Tephritidae, Milichiidae, Trixoscelididae, cathophagidae, Anthomyiidae, Muscidae, Calliphoridae, Sarcophagidae, Rhinophoridae. Families of Muscidae and Sarcophagidae are the more represented, respectively with four and three species. P. laevigata subsp. angustifolia seems to have a broader spectrum of …
ASSONOMETRIA E FUTURO
2012
Nel volume sono trattati i temi inerenti la rappresentazione in assonometria ortogonale, dove il ruolo dell'omologia è centrale e diviene risolutaore di problematiche il cui superamento grafico è immediato, di facile apprendimento ed esecuzione.
NEW RECORDS OF SPRINGTAILS (COLLEMBOLA) FROM SICILY, ITALY
2022
Along with some studies on soil fauna in various Sicilian sites, both agricultural lands and typical Mediterranean habitats, particular attention was paid to the Collembolan. Specific identification allowed to assess the occurrence in Sicily of 39 species not previously recorded, belonging to 10 families: Hypogastruridae (six species), Brachystomellidae (one species), Neanuridae (five species), Onychiuridae (three species), Tullbergiidae (seven species), Isotomidae (nine species), Entomobryidae (three species), Cyphoderidae (one species), Dicyrtomidae (one species), and Katiannidae (one species). Of these 39 species, 21 are new also for Italy. Furthermore, this is the first record of the ge…
Rearing of Prays citri on callus derived from lemon stigma and style culture
2000
A new method for rearing the citrus flower moth (Prays citri Mill.) (Lepidoptera, Yponomeutidae) on lemon [Citrus limon (L.) Burm.] callus is reported. In the present research callus (an undifferentiated mass of plant cells that can be grown under sterile conditions on an artificial medium in vitro) was induced from lemon stigma and style explants cultured on Murashige and Skoog (MS) medium supplemented with 500 mg l -1 malt extract, 13.3 μM 6-benzylaminopurine, and 146 mM sucrose. Also somatic embryogenesis and plant regeneration were obtained from the cultures of styles and stigmas of lemon. Adults were obtained from larvae on infested flowers collected in the field. Different oviposition…
Evaluating the quality of the Mexican fruit-fly, Anastrepha ludens, as host for the parasitoid Melittobia digitata
2013
We investigated the presence of Melittobia digitata (Hymenoptera: Eulophidae) and its associations with its natural hosts in Veracruz, Mexico. The parasitoid was confirmed to be present and found to attack prepupae of Trypoxylon and Sceliphron (Hymenoptera: Crabronidae and Sphecidae, respectively) mud daubers as well as pupae of the Mexican fruit fly Anastrepha ludens (Diptera: Tephritidae). Since A. ludens is a very important pest of citrus and mango in Mexico and Central America, we evaluated, in laboratory experiments, the quality of A. ludens as host of M. digitata comparing the development of the parasitoid in another unrelated fly species (Sarcophaga [Neobellieria] bullata) (Diptera: …
Spring raptor migration at Ustica, southern Italy
2004
The island of Ustica, lying at 38°42’N 13°12’E in the Tyrrhenian Sea, is approximately 60 km north of western Sicily and 270 km northeast of the Cap Bon promontory in Tunisia (fig.1). Although covering an area of only 7,600 ha, its isolation makes it attractive to migrant birds. In order to establish the importance of Ustica for the spring migration of raptors in the Mediterranean basin, counts of migrating raptors were made from the highest point of the Falconiera promontory, which dominates the northeast coast of the island, between 22nd March and 20th May 2002.Each spring, thousands of raptors cross the Mediterranean Sea between Africa and southern Italy during their northward migration …