Search results for " war"
showing 10 items of 1535 documents
Increased water temperature decreases predation rate of an important sea star predator on sea urchins.
2011
Ecological impacts of global warming and water abstraction on lakes and reservoirs due to changes in water level and related changes in salinity
2015
According to the Intergovernmental Panel on Climate Change report released in September 2014, unprecedented changes in temperature and precipitation patterns have been recorded globally in recent decades and further change is predicted to occur in the near future, mainly as the result of human activity. In particular, projections show that the Mediterranean climate zone will be markedly affected with significant implications for lake water levels and salinity. This may be exacerbated by increased demands for irrigation water. Based on long-term data from seven lakes and reservoirs covering a geographical gradient of 52 of latitudes and a literature review, we discuss how changes in water le…
Posidonia oceanica living in enclosed coastal lagoon as model for testing the effect of climate change on organism near their limit of thermal tolera…
2009
Exploring the impact of the invasive algae Caulerpa taxifolia var. distichophylla and C. cylindracea on the performance of the sea urchin Paracentrot…
2014
Vermetid reefs in the warm temperate Mediterranean Sea are facing local extinction
2012
Study of the effects of climate extremes on functioning of intertidal assemblages to design an early warning sensor network
2020
Climate change and population genetic structure of marine species
2011
Climate change influences populations by reducing or extirpating local populations, by disrupting patterns of migration and by shifting geographical distributions. These events can affect genetic population structure in several ways. Molecular markers have been used in numerous population genetic and phylogeographical studies of marine species and have detected population responses to climate change in the last few decades, such as range expansions, adaptative shifts and declines or increases in abundance. Little is known, however, about the molecular and physiological basis of adaptive responses to climate change in marine Mediterranean species. The Mediterranean Sea ecosystem is a ‘living…
Climate change potentially affect keystone predation in subtidal system.
2014
Larval Development of Arbacia lixula (Linneo, 1758) in two Marine Protected Area: preliminary data.
2010
The sea urchin Arbacia lixula is a crucial species in driving the algal assemblages dynamic of the infralittoral zone. A. lixula is considered a thermophilic species and its increase in abundance in western Mediterranean waters, probably is due to an increase in seawater temperature. The aim of this study was to examine the reproductive success of A. lixula by larval development. The study was conducted within two Sicilian MPA (Capo Gallo-Isola delle Femmine and Ustica), characterized by photophilic algae, the same exposure and seawater temperature. In each area, twenty random specimens was sampled from May to September 2010, and mature gametes were collected from six males and six females …
Development of an early warning system to predict sewer overflow
Flash flooding in our city is still a fairly common phenomenon.Unfortunately, the development of a flash flood forecasting system in urban areas is not a simple and unambiguous procedure.While attending the PhD course in Civil and Environmental Engineering, research activity has been given to realize an urban overflowing prediction system that was best as possible suited to the drainage network of the city of Palermo. With the support of radar data and hybrid hydraulic model for drainage network has been possible to demonstrate the effectiveness of this instrument, while the reduction of residual flood risk has been supported by modern resilience measures.