Search results for "TERRA"
showing 10 items of 4214 documents
Submerged macrophytes as key players in aquatic ecosystems under global change: a multiscale experimental approach
2020
El actual cambio global está causando alteraciones en los ecosistemas de todo el mundo a través de cambios interactivos en los principales factores ambientales (e.g. la temperatura, la concentración de nutrientes y la radiación ultravioleta). Los ecosistemas acuáticos continentales son altamente vulnerables ante estos cambios y, específicamente, en la región mediterránea, la situación es peor ya que la mayoría de estos sistemas son someros y están expuestos a las perturbaciones ambientales y antrópicas. Las praderas de macrófitos sumergidos y, particularmente, los carófitos, son un elemento conspicuo de estos sistemas con un papel fundamental en su funcionamiento. Estos organismos proveen d…
The controversial role of actors in Italian and Sicilian waterfront areas management and planning
2013
The paper investigates the relationship between planning tools and formal/informal subjects involved in Sicilian waterfront areas management and it focuses on the relation between port plans and other (local and regional) planning instruments and policies. This relationship is explored through an examination of some results of The “Waterfront” project (Water And Territorial policiEs for integRation oF multisectoRial develOpmeNT), developed under the PO 2007-2013 Italia-Malta, that aimed to explore the field of “waterfront” in a different sense from the simple concept of urban or peri-urban coastal areas. The waterfront, in the Project approach, takes a wider identity that refers to the comp…
Ricerche sulle tecniche di propagazione di specie arbustive autoctone della flora mediterranea e sul loro utilizzo in floricoltura.
2011
SST Comparison of AVHRR and MODIS Time Series in the Western Mediterranean Sea
2020
La temperatura de la superficie del mar (SST) es un parámetro clave para comprender los procesos atmosféricos y oceánicos. Desde finales de la década de 1980, las imágenes de satélite infrarrojas se han utilizado para complementar los registros in situ para estudiar la variabilidad temporal y espacial de la SST. El radiómetro avanzado de muy alta resolución (AVHRR) del satélite de la Administración Nacional Oceánica y Atmosférica (NOAA) fue el primer sensor utilizado con éxito para calcular la SST después del desarrollo y validación del algoritmo de corrección atmosférica conocido como 'ventana dividida'. Más recientemente, el espectrorradiómetro de imágenes de resolución MODERADA (MODIS) a…
Pyrus pedrottiana (Rosaceae), a new species from the Nebrodi Mountains (N-E Sicily)
2022
A new species of Pyrus for the dendroflora of Sicily is here described. It is Pyrus pedrottiana, actually considered endemic to the Nebrodi Mountains, a territory which includes the largest wooded area of the island with a high forest biodiversity.In the same area, P. vallis-demonis and P. ciancioi have also been described in recent times. The authors report diagnostic characters to distinguish the new taxon from the other two sympatric species.
Regional metacommunities in two coastal systems: spatial structure and drivers of plant assemblages
2014
Aim Biogeographical patterns in metacommunities are still poorly understood, and different processes are expected to occur in different habitats. We analysed the regional plant metacommunities of coastal habitats to test whether (1) the influence of space and climate differs between two habitats differentiated along the seashore–inland gradient, and (2) regional variation in species composition of these habitats can be ascribed to different metacommunity paradigms. Location The entire coast of the Iberian Peninsula, south-western Europe. Methods We collected data on the plant species composition of coastal sites on sand dunes across 3000 km of coastline. The sites were classified into two h…
Cornelis Verbeecq, in G. C. SCIOLLA (a cura di), Cielo terra e acque: il paesaggio nella pittura fiamminga e olandese tra Cinquecento e Seicento, Tor…
2006
Cornelis Verbeecq, in G. C. SCIOLLA (a cura di), Cielo terra e acque: il paesaggio nella pittura fiamminga e olandese tra Cinquecento e Seicento, Torino, Elede, 2006 p. 35-133
From urban vacancy to public green: A case of commoning in Partinico (Palermo)
2018
Considerare gli actually existing commons significa trattare i beni comuni non come prodotti a sé stanti o semplici azioni di reclaiming urbano, ma come processi di apprendimento collettivo sul bene comune. La letteratura mainstream sui commons, tuttavia, deve essere declinata rispetto alle specificità locali che divergono dai canoni standard, soprattutto in contesti deboli dal punto di vista istituzionale, come nel caso della Sicilia. Il caso di Villa San Pio a Partinico descrive proprio una situazione in cui non si può constatare una rivolta antiegemonica, narrata da buona parte della letteratura internazionale, ma piuttosto una latitanza degli attori istituzionali deputati a occuparsi di…
EFFETTI DELLA PROTEZIONE E DELLA COMPLESSITÀ TOPOGRAFICA SUI POPOLAMENTI BENTONICI DEI REEF A VERMETI
2009
Vermetid reef can be considered a key intertidal habitat of Mediterranean Sea and increasing knowledge about this natural system is important for its conservation. Aims of this study is to assess topography complexity, structure and composition of the benthic assemblages associated to reef formation in a marine protected area highlighting possible effects of the protection.
Holocene sea level change in Malta
2013
A multidisciplinary approach has been applied to study sea level changes along the coast of Malta using data collected from underwater archaeological remains. The elevation of archaeological markers have been compared with predicted sea level curves providing new bodies of evidence that outline the vertical tectonic behaviour of this region, allowing estimation of the relative sea level changes that occurred in this area of the Mediterranean since the Bronze Age. During the Roman Age, sea level was at −1.36 ± 0.1 m, while in the Midde Age it was at −0.56 ± 0.2 m, in agreement with previous estimations for the Mediterranean region. Data indicate that Malta was tectonically stable during the …