Iskanje po repozitoriju

A+ | A- | | SLO | ENG

Povzetek: Seagrass meadows are important habitat builders, providing food, shelter, and nursery grounds for many species, alongside essential goods and ecosystem services for humanity. However, in the last decades, seagrass meadows have been subjected to numerous pressures, leading to their widespread decline. The northern Adriatic Sea is no exception, with seagrass regression observed notably between 2014 and 2018. This study aims to identify the drivers of the recent seagrass decline in the Gulf of Trieste through a spatial and temporal assessment of seagrass distribution. To assess the relationship between seagrass dynamics and environmental changes, spatiotemporal patterns of environmental variables were analyzed, and generalized additive models were applied for two different time periods: 2009-2013 and 2014-2018. Historical data on seagrass distribution was also collected and compared with the current distribution. Our findings indicate that Cymodocea nodosa remains the dominant species on the northern coast of the Gulf, with a decrease of 30% in Slovenian waters and up to 89% near Trieste (Italy) during 2014-2018. Analysis of physicochemical variables revealed an increase in seawater temperature across the Gulf and a change in nutrient load, particularly in Slovenia, where it decreased significantly. Models achieved high-performance scores, identifying photosynthetically active radiation, nutrients, temperature, and sediment type as key determinants of seagrass occurrence. Nonetheless, additional local-scale factors likely contributed to lower seagrass’ resilience to disturbances. These findings stress the need to develop integrated spatial planning strategies and provide a crucial baseline for future seagrass monitoring and restoration activities.
Ključne besede: species distribution, climate change, anthropogenic disturbance, urbanization, Northern Adriatic
Objavljeno v DiRROS: 08.10.2025; Ogledov: 281; Prenosov: 125
Celotno besedilo (7,25 MB)
Gradivo ima več datotek! Več...

Povzetek: Taller timber buildings (TTBs) offer sustainability benefits but pose unique seismic challenges. The following chapter reviews state-of-the-art seismic protection technologies (SPTs) for TTBs, including low-damage self-centering systems, post-tensioned systems, supplemental damping systems, passive and active control systems and base isolation. It discusses the principles, applications, and future challenges of each technology. While significant progress and innovative solutions have been achieved, outstanding challenges include scaling the technology, optimizing cost-effectiveness, and managing interactions between structural and non-structural elements to enhance functional recovery, damage limitation, and acceleration reduction. By examining current practices and future directions, this review facilitates a broader understanding and implementation of SPTs, promoting the sustainable growth of TTBs in seismic-prone regions.
Ključne besede: timber buildings, earthquake engineering, seismic protection technologies, low-damage and self-centring, post-tensioned systems, supplemental damping systems, passive and active control, base isolation
Objavljeno v DiRROS: 08.10.2025; Ogledov: 239; Prenosov: 117
Celotno besedilo (924,55 KB)
Gradivo ima več datotek! Več...

Povzetek: The fan mussel Pinna nobilis is the largest bivalve species in the Mediterranean Sea and provides numerous ecosystem services. It is classified as critically endangered by IUCN (International Union for Conservation of Nature) due to severe mass mortality events throughout the Mediterranean. The aims of this work are as follows: (i) to assess the current recruitment potential of the species, (ii) to enhance recruitment by keeping juveniles in controlled conditions before releasing them back into the sea, and (iii) to assess the health status of recruits. In the period 2022–2023, larval collectors were set up in the Gulf of Trieste as part of the LIFE Pinna project. The collected individuals were kept in aquaria in two different facilities under different conditions: (a) a closed system with constant water temperature, live phytoplankton, and commercial food and (b) an open system with ambient seawater temperature and commercial food. A clear temporal and spatial variability in recruitment was observed: 13 recruits were found in 2022 and 50 recruits in 2023. The live specimens were between 0.5 and 8 cm in size upon collection and larger in 2023. The growth and survival rate did not differ significantly between the two systems, but the average monthly growth and survival rate were related to the initial size of the juveniles.
Ključne besede: pen shell, ex situ maintenance, in situ maintenance, Haplosporidium pinnae, Mycobacterium, conservation, marine biology
Objavljeno v DiRROS: 08.10.2025; Ogledov: 255; Prenosov: 112
Celotno besedilo (1,71 MB)
Gradivo ima več datotek! Več...

Ključne besede: zakonodaja, gozdarstvo, hudourniki, hudourniška območja, gozdovi
Objavljeno v DiRROS: 08.10.2025; Ogledov: 321; Prenosov: 117
Celotno besedilo (19,35 MB)

Ključne besede: zakonodaja, gozdarstvo, hudourniki, hudourniška območja, gozdovi
Objavljeno v DiRROS: 08.10.2025; Ogledov: 255; Prenosov: 82
Celotno besedilo (827,45 KB)