			Home About us Contact

Giulia Region (giulia + region)

Distribution by Scientific Domains

Life Sciences	50%

Selected Abstracts

Seismic risk assessments and GIS technology: applications to infrastructures in the Friuli,Venezia Giulia region (NE Italy)

EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS, Issue 11 2003
Raffaella Codermatz
Abstract This paper illustrates the seismic risk preliminary estimates of two different groups of structures located on the territory of the Friuli,Venezia Giulia region (NE Italy) : the first group includes some special industrial plants, and the second group includes bridges and tunnels belonging to the regional highway network. The part of the study on special industrial plants tries to evaluate the degree of expected damage, taking into account their structural typology and ground shaking expressed in terms of macroseismic intensity. The second part of the study is an application of the HAZUS methodology to the tunnels and bridges of a highway network: the combination of expected ground shaking and the construction characteristics lead to very different risk levels, especially when considering the bridges. The resulting damage levels to bridges and tunnels are still only indicative because of the fragility curves used in the evaluations: they were developed for existing bridge and tunnel structural typologies in the U.S.A. Moreover, both examples show the power of GIS technology in storing, elaborating, and mapping spatial data. Copyright © 2003 John Wiley & Sons, Ltd. [source]

Ips typographus (L.) pheromone trapping in south Alps: spring catches determine damage thresholds

JOURNAL OF APPLIED ENTOMOLOGY, Issue 4 2004
M. Faccoli
Abstract:,Ips typographus is one of the major forest pests in the Italian Alps. From 1996, populations of I. typographus in Friuli-Venezia Giulia region (NE Italy) have been permanently monitored in areas of outbreak by using pheromone traps. At the same time, damage caused by the insect was estimated annually. Preliminary analysis of the data (1996,2002) reveals some interesting information: (i) the flight activity of I. typographus is very extended and occurs over a period of about 4 months (May to August); (ii) there is a high correlation between mean captures per trap and annual damage; (iii) there is a high correlation between spring captures (May to mid-June) and total captures (May to August), and between spring captures (May to mid-June) and annual damage. The correlation between spring captures and damage allows the determination of a reliable risk-damage threshold (about 5000 beetles/trap, in spring), reducing at the same time, the monitoring period and the general costs. [source]

Genetic variability of Austropotamobius italicus in the Marches region: implications for conservation

AQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS, Issue 3 2010
Rosaria Cataudella
Abstract 1.Ten populations of Austropotamobius italicus from the Marches region (Central Italy), two populations from the Appennines of Calabria and Basilicata (Southern Italy) and four populations from Friuli Venezia Giulia region were sampled to elucidate the geographical pattern of genetic variability in relation to recent and historical factors. 2.A total of nine COI haplotypes belonging to three separate lineages have been characterized. Both lineage A (Northern Marches region) and C (Friuli Venezia Giulia region) were represented by one haplotype and were related to the Istria 1 peninsula and SouthAlps/Western Balkans lineages respectively. The lineage B included seven haplotypes belonging to the Appenines lineage. 3.Two hypotheses on the origin of individuals belonging to the Istrian lineage in Marches are discussed: (i) a natural colonization from the Istria peninsula refugia by migrating westwards across the bridge between the Istria peninsula and Italy, (ii) an anthropogenic origin. Based on 16S rRNA sequences, the taxonomic status of lineage B and C, defined from COI mtDNA markers, belongs to A. i. meridionalis and that of lineage A belongs to A. i. carsicus. The existence of a complex geographic structure between Marches populations (,st=0.66) of A. i. meridionalis should be further considered in conservation management. Copyright © 2010 John Wiley & Sons, Ltd. [source]