20.500.12556/RUL-160135 Testiranje bioakustičnih metod za popisovanje izbranih vrst gozdnih sov (Strigidae) Testing the bioacoustic methods for monitoring of selected forest owl species (Strigidae) Bioakustične metode so z napredkom tehnologije v zadnjih letih postale alternativa že uveljavljenim popisnim metodam, kot sta metoda iskanja sovjih gnezd in metoda popisa s predvajanjem posnetka. Novejši pristopi k monitoringu biodiverzitete imajo številne prednosti, kot so minimalen vpliv na naravno vedenje živali, nepristranskost podatkov ter možnost optimiziranega dolgoročnega spremljanja. Kljub temu je učinkovitost bioakustičnih metod v primerjavi s klasičnimi zaenkrat še nepreverjena. V naši raziskavi smo leta 2022 na območjih Krima, Smrekovca in Dleskovškove planote v času paritvenega obdobja izvedli pasivni bioakustični popis izbranih vrst sov – lesne sove (Strix aluco), kozače (Strix uralensis), malega skovika (Glaucidium passerinum) in koconogega čuka (Aegolius funereus). Zbrane podatke o oglašanju izbranih vrst smo analizirali, določili verjetnost detekcije za vsako posamezno vrsto in primerjali podatke bioakustičnega popisa s podatki, pridobljenimi s klasičnim popisom s predvajanjem posnetka, izvedenim v istem obdobju. Pasivna bioakustična metoda se je izkazala za uspešen način popisa lesne sove, saj smo v treh zaporednih nočeh snemanja dosegli 95% zanesljivost detekcije. Zaznavnost ostalih vrst je bila v primerjavi z lesno sovo manjša, kar nakazuje na potrebo po nadaljnji optimizaciji pasivne bioakustične metode za popis posameznih vrst, katerih detekcija je v veliki meri odvisna od njihove spontane vokalne aktivnosti. Naša raziskava bo prispevala k nadaljnjemu razvoju pasivne bioakustične metode in njeni uveljavitvi kot popisne metode v Sloveniji. In recent years, with the advancement of technology, bioacoustic methods have become an alternative to well-established survey methods, such as searching for owl nests and playback surveys. Newer approaches to biodiversity monitoring offer numerous advantages, such as minimal impact on the natural behavior of animals, data impartiality, and the possibility of optimized long-term monitoring. However, the effectiveness of bioacoustic methods compared to classical methods is still unverified. In our study, conducted in 2022, we carried out a passive bioacoustic survey of selected owl species during the breeding season in the areas of Krim, Smrekovec, and Dleskovškova planota. The species surveyed included the Tawny Owl (Strix aluco), the Ural Owl (Strix uralensis), the Pygmy Owl (Glaucidium passerinum), and the Boreal Owl (Aegolius funereus). We analyzed the collected data on species vocalizations, determined the detection probability for each species, and compared the bioacoustic survey data with data obtained from a classical playback survey conducted in the same year. The passive bioacoustic method proved to be a successful in survey of the Tawny Owl, as we achieved a 95% detection reliability already in three nights of continuous recording. The survey of other species was less successful indicating the need for further improvements the passive bioacoustic survey method for individual species, whose detection probability largely depends on their spontaneous vocal activity. Our research will contribute to the further development of the passive bioacoustic method and its establishment as a survey method in Slovenia. Prave sove (Strigidae) metoda popisa s predvajanjem posnetka pasivna akustična metoda True owls (Strigidae) playback survey passive acoustic monitoring true false false [T. Verbič] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2024-08-22 07:15:57 2024-08-22 07:16:04 2024-08-23 08:07:23 0000-00-00 00:00:00 2024 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 598.279.42:534.6(043.2) 240595 205044995 41148.pdf 41148.pdf 1 A2100AC0B11BF1F862207D801BFF1142 a6690c3162dace906efac4cf45b9478de32604aa890a4fb2a7ac1f16ee9dc5ab 6ad52ef1-6045-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=188625 Biotehniška fakulteta 0 0 0