20.500.12556/RUL-173828 Razširjenost vejnega ambrozijevca (Xylosandrus compactus) v revirju Šavrini Distribution of black twig borer (Xylosandrus compactus) in Šavrini forest district Ambrozijski hrošči iz poddružine podlubnikov (Coleoptera: Curculionidae, Scolytinae) so pogosto nenamerno vneseni v nove dele sveta in ponekod zaradi svoje uspešne invazivnosti predstavljajo veliko grožnjo gozdnim ekosistemom. V zadnjem desetletju je bilo v Sloveniji odkritih sedem tujerodnih vrst ambrozijskih podlubnikov. Eden izmed teh je tudi Xylosandrus compactus, ki je v Sloveniji bil prvič zaznan leta 2023 v sklopu letnega programa spremljanja karantenskih vrst, v bližini Luke Koper (Srmin). Odkritje vejnega ambrozijevca in tudi drugih tujerodnih vrst potrjuje učinkovitost takih raziskav ter nujnost opravljanja le-teh. V okviru diplomske naloge sta bili v okolici Izole postavljeni dve večlijakasti pasti, ena izmed teh je bila past za suhi ulov, druga pa za mokri ulov. Pri obeh sta bila kot atraktanta uporabljena etanol in α-pinen. Pasti smo spremljali od 21. marca do 20. julija 2025, pri čemer smo tedenski ulov prenesli na Gozdarski inštitut Slovenije na Oddelek za varstvo gozdov, kjer je bila opravljena determinacija vseh hroščev (Coleoptera). Vse podlubnike (Scolytinae) smo determinirali do vrste. Prav tako je bilo v okviru naloge opravljenih več vizualnih pregledov terena. Z diplomsko nalogo smo potrdili dve novi lokaciji prisotnosti X. compactus, kar nam je podalo nov vpogled na razširjenost nedavno odkrite vrste. Prav tako smo s pregledi in analizo rastlinskih vzorcev potrdili prisotnost vrste na gostiteljski rastlini (Laurus nobilis), s čimer smo dobili prvo najdbo na rastlini v Sloveniji. Ambrosia beetles of the subfamily Scolytinae (Coleoptera: Curculionidae) are frequently unintentionally introduced to new parts of the word, and in some regions, their successful invasiveness poses a significant threat to forest ecosystems. In the past decade, seven non native species of ambrosia beetles have been discovered in Slovenia. One of these is Xylosandrus compactus, which was first detected in Slovenia in 2023, during the annual monitoring program for quarantine species, near the Port of Koper (Srmin). The discovery of the black twig borer, as well as other non-native species, confirms the effectiveness of such monitoring efforts and highlights their necessity. As part of this thesis, two multi-funnel traps were installed in the vicinity of Izola, one of which was designed for dry collection and the other for wet collection. Both contained ethanol and α-pinene as attractants. Monitoring was conducted from March 21 to July 20, 2025. We transported weekly catch to Slovenian Forestry Institute, Department of Forest Protection, where all beetles (Coleoptera) were identified. Bark beetles (Scolytinae) were determined to species level. Additionally, multiple visual surveys of the area were carried out as part of the research. Through this thesis, two new locations of X. compactus presence were confirmed, providing new insight into the distribution of this recently detected species. Furthermore, visual inspections and analysis of plant samples confirmed the presence of the species on a host plant (Laurus nobilis), making it the first documented find on a host plant in Slovenia. ambrozijski podlubniki vejni ambrozijevec Xylosandrus compactus revir Šavrini večlijakaste pasti gostiteljske rastline ambrosia bark beetles black twig borer Xylosandrus compactus Šavrini forest district multi-funnel traps host plants true false false [C. Ulaga] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-24 07:17:35 2025-09-24 07:17:38 2025-11-13 03:54:27 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*14(043.2)=163.6 265853 250467843 51320.pdf 51320.pdf 1 A1C927EC3A8FF6263D46CE317183340D f7f0db80bb77fe63517d511588b24f500faa7d9f3d23e475af321d0b349c49c8 999f404e-9905-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218500 Biotehniška fakulteta 0 0 0