1. Occupancy of artificial shelters by European tree frog (Hyla arborea) in Škocjanski zatok Nature Reserve : a non-invasive sampling method in ecologically sensitive habitatsMartin Senič, Matic Jančič, Jure Jugovic, Kevin Rečnik, Sara Zupan, Martina Lužnik, 2025, izvirni znanstveni članek Opis: Monitoring amphibians in non-breeding habitats is constrained by low detectability and potential disturbance to sensitive ecosystems. We tested the effectiveness of artificial shelters - PVC pipes - as a non-invasive method for monitoring the European tree frog (Hyla arborea) outside the breeding season in Škocjanski zatok Nature Reserve (Koper, Slovenia). Over three years (2022–2024), we installed 40- and 50-mm diameter shelter pipes at 24 sites and conducted regular inspections. A total of 338 encounters of the focal species were recorded, with frogs of all sizes using the shelters. Overall shelter occupancy declined across years, possibly reflecting a combination of factors including reduced recruitment, vegetation changes, demographic fluctuations, and weather conditions. A statistically significant trend was observed, with narrower (40-mm) shelter pipes having 1.6 to 1.7 times more captures than wider (50-mm) ones, despite no significant difference in the body size of frogs occupying each type. By using PVC artificial shelters, we greatly enhanced the detectability of H. arborea in the Škocjanski zatok Nature Reserve compared to classical monitoring methods such as acoustic surveys or dip-netting. Importantly, a non-invasive approach using artificial shelters minimized the risk of disturbance to breeding and migratory birds, which is essential in areas with high avifaunal conservation value. Our results support the broader use of artificial shelters for monitoring arboreal amphibians in ecologically sensitive areas and suggest future research should explore finer-scale shelter design to improve detection and ecological interpretation across life stages.
Ključne besede: Hyla arborea, artificial shelters, PVC pipes, amphibian monitoring, protected areas
Objavljeno v RUP: 14.01.2026; Ogledov: 63; Prenosov: 2
 Celotno besedilo (928,26 KB)
Gradivo ima več datotek! Več... |
2. |
3. Ocena površinske gostote glavate karete (Caretta caretta) v slovenskem morju z uporabo brezpilotnega letalnika : magistrsko deloTinkara Kovic, 2025, magistrsko delo Ključne besede: morske želve, Jadransko morje, Sredozemsko morje, gostota populacije, površinska gostota, brezpilotni letalnik, BPL, morski prehranjevalni habitat
Objavljeno v RUP: 13.09.2025; Ogledov: 361; Prenosov: 5
Celotno besedilo (2,84 MB) |
4. Is net illumination a silver bullet for mitigating sea turtle bycatch in set net fisheries?Matic Jančič, Matteo Benussi, Sven Amančić, Peter Mackelworth, Draško Holcer, Bojan Lazar, 2025, izvirni znanstveni članek Opis: Fisheries bycatch is the main threat to sea turtle populations in marine habitats in the Mediterranean Sea. Bycatch in set nets accounts for 30,000 catches yearly, which combined with mortality rates of up to 82.6 %, makes it the deadliest fishing gear in the region. The Adriatic Sea is one of the most important foraging and developmental habitats for loggerhead sea turtles (Caretta caretta) in the Mediterranean. Bycatch in the Adriatic small-scale set net fishery is estimated at over 8900 individuals per year placing its mitigation among international conservation priorities. Use of light emitting diodes (LED lights) of different wavelengths as bycatch deterrents was proposed as an effective conservation tool, reducing bycatch levels by up to 93 %. In the present study we: (i) quantified the effects of net illumination on loggerhead sea turtle bycatch rates and (ii) demonstrate the importance of regional validation of conservation tools effectiveness prior to their widespread adoption. We assessed the effects of green LED lights on sea turtle bycatch rates in 390 net pairs with total length of 1278 km monitored nets. We found no significant change in sea turtle bycatch rates as a result of net illumination. A significant decrease of 35 % of primary target catch was observed in illuminated trammel nets. Possible explanations include fluctuating turbidity and an adapted LED light attachment method. Observed sea turtle bycatch rates in unilluminated nets were up to 84 times lower than in comparable gears in Northern Adriatic Sea. Understanding the drivers behind the differing bycatch rates would be necessary before conservation decisions are made. Our study showed that the net illumination is not necessarily a silver bullet for bycatch mitigation in set nets globally, and that regional testing is a key requirement before its introduction in fisheries as a conservation tool.
Ključne besede: marine megafauna, Caretta caretta, small scale fisheries, bottom set nets, bycatch hotspot, bycatch mitigation, visual deterrents
Objavljeno v RUP: 06.08.2025; Ogledov: 518; Prenosov: 6
Celotno besedilo (3,58 MB)
Gradivo ima več datotek! Več... |
5. |
6. |
7. |
8. Navigacijski mehanizmi velikih morskih vretenčarjev : zaključna nalogaNejc Prinčič, 2020, diplomsko delo Ključne besede: navigacija, navigacijski mehanizmi, orientacija, veliki morski vretenčarji, morski psi, morske želve, morski sesalci, morske ptice, magnetno polje, olfaktornost, navigacijski znaki
Objavljeno v RUP: 09.10.2020; Ogledov: 2814; Prenosov: 45
 Povezava na celotno besedilo
Gradivo ima več datotek! Več... |
9. The prospect of a transboundary marine protected area to help resolve the Piran bay border dispute in the Northern AdriaticMatic Jančič, 2016, objavljeni povzetek znanstvenega prispevka na konferenci Ključne besede: Piran Bay, marine protected area, transboundary conservation, NATURA 2000, Tursiops truncatus, Caretta caretta, human dimensions, crossborder cooperation, management plan
Objavljeno v RUP: 23.07.2019; Ogledov: 3321; Prenosov: 60
Povezava na celotno besedilo |
10. |
