scholarly journals A new pioneer association of detrital substrata of the hilly and low-mountain belts in Central Apennines (Italy)

2020 ◽  
Vol 57 (1) ◽  
pp. 75-84
Author(s):  
Giampiero Ciaschetti ◽  
Michele Di Musciano ◽  
Gianfranco Pirone ◽  
Valter Di Cecco ◽  
Loretta Pace ◽  
...  
Keyword(s):  
Plant Communities ◽  
First Record ◽  
Central Apennines ◽  
Typical Species ◽  
Abruzzo Region ◽  
Vegetation Class ◽  
Mountain Belts

Plant communities dominated by Petrosedum ser. Rupestria in Italy have always been referred to the Sedo albi-Scleranthetea biennis Br.-Bl. 1955 class. This group of species was also often found more or less abundant in the garrigue and pasture vegetation. Some unusual plant communities dominated by Petrosedum rupestre (L.) P.V.Heath with a conspicuous presence of typical species of scree vegetation were found and sampled in the Abruzzo region, on more or less mobile debris. In order to classify such communities, syntaxonomic, structural, chorological and ecological analyses have been performed. All the Petrosedum ser. Rupestria dominated communities reported in Italy have been compared with the sampled vegetation. A new perennial pioneer association, linked to more or less mobile detrital substrata of the hilly and lower-mountane belts of the calcareous Central Apennines has been here described with the name Linario purpureae-Petrosedetum rupestris. Based on the syntaxonomic analysis, this association has been included in the Linarion purpureae alliance (Scrophulario bicoloris-Helichrysetalia italici order). The Linario-Petrosedetum has been divided into two subassociations: a typical one named petrosedetosum rupestris and a thermophilous one of the lower altitudes named teucrietosum flavi. The study revealed the originality of such communities and their appropriate classification in the Thlaspietea rotundifolii class. This is the first record in Italy of a Petrosedum ser. Rupestria-rich community framed in the scree vegetation class.

Property of long term (1990-2009) seismicity in the region of L’Aquila Mw6.1 earthquake revealed from machine learning 

2021 ◽  
Author(s):  
Josipa Majstorović ◽  
Piero Poli
Keyword(s):  
Epicentral Distance ◽  
Large Earthquake ◽  
Historical Seismicity ◽  
Central Apennines ◽  
Small Magnitude ◽  
Earthquake Detection ◽  
Abruzzo Region ◽  
Background Seismic Activity ◽  
The City

<p>On April 6th 2009 (01:32 UTC) strong earthquake of magnitude M<sub>W</sub>6.1 occurred near the city of L’Aquila in the Abruzzo region in the Central Apennines of Italy. Due to the extensional processes the Abruzzo region is characterized by prominent historical seismicity. However, before the 2009 event the background seismic activity is characterised as sparse and mostly clustered in space and time. The general lack of events, especially small magnitude events before the 2009 event motivated us to study the long-term near-fault seismicity before the large earthquake occurrence. To achieve this we first have to extend the existing catalog. We take into consideration the data from the AQU (42.354, 13.405) station that has been recorded in the city of L’Aquila, near Paganica fault responsible for the 2009 event, during an extensive period of 29-years, 19 years before the event itself. The catalog extension is performed by applying the two-stage convolutional neural network pipeline for earthquake detection and characterisation (epicentral distance and magnitude) using three component signal station waveforms. The algorithm allows us to successfully detect ~800 local events (less than 10 km from the AQU station) in the period 1990-2009. We here present a detailed analysis of this catalog including waveforms characterization to derive new insights about the long term preparation processes(es) occuring before the 2009 M<sub>w</sub>6.1 earthquake.</p>

scholarly journals Scythris clavella (Zeller, 1855) in Italy (Lepidoptera, Gelechioidea, Scythrididae)

2016 ◽  
Vol 48 (3) ◽  
pp. 301 ◽  
Author(s):  
M. Pinzari
Keyword(s):  
Central Asia ◽  
First Record ◽  
Southern Europe ◽  
Accurate Data ◽  
Altai Mountains ◽  
Ural Mountains ◽  
Central Apennines ◽  
Data Support ◽  
Extensive Collection

During an extensive collection of Lepidoptera in <em>Reatini</em> Mountains (Central Apennines, Italy) a male of <em>Scythris clavella</em> (Zeller, 1855) was collected. This species is distributed in Central and Southern Europe and eastwards to Bulgaria, Greece, Southern Ural Mountains, Altai Mountains and Central Asia (Kazakhstan, Kirgisia). It was cited for Italy; however, accurate data of its presence are not present in literature. Our data support the conclusion that it is the first record for Peninsular Italy.

First record of Prorocentrum lima (Dinophyceae) inside harbor areas and along the Abruzzo region coast, W Adriatic

2009 ◽  
Vol 58 (4) ◽  
pp. 596-600 ◽  
Author(s):  
Cristina Ingarao ◽  
Giovanna Lanciani ◽  
Carmen Verri ◽  
Tommaso Pagliani
Keyword(s):  
First Record ◽  
Prorocentrum Lima ◽  
Abruzzo Region

scholarly journals Lathyro asphodeloidis-Klaseetum lycopifoliae, a new plant association in the alliance Cynosurion cristati Tüxen, 1947 in Central Apennines

2019 ◽  
Vol 7 ◽  
pp. 35-50
Author(s):  
Giampiero Ciaschetti ◽  
Gianfranco Pirone
Keyword(s):  
Multivariate Analysis ◽  
Rare Plant ◽  
Plant Association ◽  
Central Apennines ◽  
Cultural Importance ◽  
High Plateau ◽  
Ecological Aspects ◽  
Abruzzo Region ◽  
Typical Aspect ◽  
Hygrophilous Species

This study presents a new plant association discovered in the Central Apennines and named Lathyroasphodeloidis-Klaseetumlycopifoliae. It consists of a semi-natural meadow characterized by the co-dominance of two rare taxa, Klasealycopifolia and Lathyruspannonicussubsp.asphodeloides, occurring in Italy in only a few localities in the Central and Northen Apennines. The association was discovered on the Altopiano delle Rocche high plateau in the province of L’Aquila (Abruzzo region, Italy). Multivariate analysis of the relevés shows two floristic and ecological aspects, corresponding to two different subassociations: festucetosum circummediterraneae, with elements from the Festuco-Brometea class, growing in the outer portions of the plateau, and narcissetosum poëtici, corresponding to the most typical aspect and occupying the central part of the plateau, differentiated by meso-hygrophilous species of the Molinietalia and Trifolio-Hordeetalia orders. The plant association has great natural value, due to the presence of several rare plant species, and cultural importance in association with the traditional “Narcissus Fest” held each year in May.

Background seismicity in the Central Apennines of Italy: The Abruzzo region case study

2007 ◽  
Vol 444 (1-4) ◽  
pp. 80-92 ◽  
Author(s):  
S. Bagh ◽  
L. Chiaraluce ◽  
P. De Gori ◽  
M. Moretti ◽  
A. Govoni ◽  
...  
Keyword(s):  
Central Apennines ◽  
Background Seismicity ◽  
Abruzzo Region

Active faulting and deep-seated gravitational slope deformation in carbonate rocks (Central Apennines, Italy) 

2021 ◽  
Author(s):  
Luca Del Rio ◽  
Marco Moro ◽  
Michele Fondriest ◽  
Stefano Gori ◽  
Emanuela Falcucci ◽  
...  
Keyword(s):  
Carbonate Rocks ◽  
Ground Surface ◽  
Slope Deformation ◽  
Normal Faults ◽  
Active Faulting ◽  
Central Apennines ◽  
Microstructural Investigation ◽  
Ambient Temperatures ◽  
Slip Surfaces ◽  
Mountain Belts

&lt;p&gt;Abstract&lt;/p&gt;&lt;p&gt;Active faulting and Deep-seated Gravitational Slope Deformation (DGSD) constitute common geological hazards in mountain belts worldwide. In the Italian central Apennines, km-thick carbonate sedimentary sequences are cut by major active normal faults which shape the landscape generating intermontane basins. Geomorphological observations suggest that the DGSDs are commonly located in the fault footwalls.&lt;/p&gt;&lt;p&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; We selected five mountain slopes affected by DGSD and exposing the footwall of active seismic normal faults exhumed from 2 to 0.5 km depth. We combined field structural analysis of the slopes with microstructural investigation of the slipping zones from the slip surfaces of both DGSDs and major faults. The collected data show that DGSDs exploit pre-existing surfaces formed both at depth and near the ground surface by tectonic faulting and, locally, by gravitational collapse. At the microscale, the widespread compaction of micro-grains (e.g., clasts indentation) forming the cataclastic matrix of both normal faults and DGSDs is consistent with clast fragmentation, fluid-infiltration and congruent pressure-solution mechanisms active at low ambient temperatures and lithostatic pressures. These processes are more developed in the slipping zones of normal faults because of the larger displacement accommodated.&lt;/p&gt;&lt;p&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; We conclude that in carbonate rocks of the central Apennines, DGSDs commonly exploit pre-existing tectonic faults/fractures and, in addition, localize slip along newly formed fractures that accommodate deformation mechanisms similar to those associated to tectonic faulting. Furthermore, the exposure of sharp slip surfaces along mountain slopes in the central Apennines can result from both surface seismic rupturing and DGSD or by a combination of them.&lt;/p&gt;

scholarly journals Land use change in the high mountain belts of the central Apennines led to marked changes of the grassland mosaic

2019 ◽  
Vol 22 (2) ◽  
pp. 243-255 ◽  
Author(s):  
Luca Malatesta ◽  
Federico Maria Tardella ◽  
Marco Tavoloni ◽  
Nicola Postiglione ◽  
Karina Piermarteri ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
High Mountain ◽  
Central Apennines ◽  
Mountain Belts
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