First data from the new amphibian road-kill hotspot at Vinogradniška pot in Razvanje (NE Slovenia)

Lobnik, Rok (author)

There are more than 1500 road segments, where large amphibian mortalities are recorded in Slovenia. One of such road-kill hotspots is Vinogradniška pot at Razvanje (NE Slovenia), where censuses of migrating amphibians were carried out in spring of 2019, 2020, 2021 and 2024 alongside actions to prevent road death that have been taking place since 2018, albeit irregularly. Here, the first data from those censuses are presented. Four amphibian species were recorded migrating over the road, specifically common toad (Bufo bufo), common frog (Rana temporaria), agile frog (R. dalmatina) and Italian crested newt (Triturus carnifex). The most numerous was B. bufo, of which 500–1000 individuals migrated over the road annually and represented about 99% of individuals of all recorded amphibian species. Male B. bufo outnumbered females by 4–12:1 and species mortality was fairly low (between 5 and 12%), but was deliberately artificially reduced. Amphibian activity was lower later in the evening and had a significant moderate positive correlation with the air temperature. The data presented indicate the importance of amphibian spring migration monitoring also over low-traffic roads, which are rarely the focus of similar studies.

• Language: English
• Keywords: amphibian spring migration, road-kill hotspot, Razvanje, Bufo bufo
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: Str. 13-19
• Numbering: Vol. 27, no. 1
• PID: 20.500.12556/RUL-180707
• UDC: 591
• ISSN on article: 1854-3081
• DOI: 10.14720/ns.19547
• COBISS.SI-ID: 270732291
• Publication date in RUL: 08.04.2026

Record is a part of a journal

• Title: Natura Sloveniae : revija za terensko biologijo = journal of field biology
• Publisher: Založba Univerze v Ljubljani = University of Ljubljana Press, Biotehniška fakulteta Univerze v Ljubljani = Biotechnical Faculty at University of Ljubljana, Nacionalni inštitut za biologijo = National Institute of Biology
• ISSN: 1854-3081
• COBISS.SI-ID: 221920000

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Title: Prvi podatki s črne točke na Vinogradniški poti v Razvanju (SV Slovenija)

Abstract

V Sloveniji je trenutno registriranih več kot 1500 odsekov, kjer prihaja do množičnih povozov dvoživk. Ena izmed takšnih črnih točk je cesta na Vinogradniški poti v Razvanju (SV Slovenija), kjer smo popise selečih se dvoživk opravljali v letih 2019, 2020, 2021 in 2024 v sklopu akcije prenašanja dvoživk čez cesto, ki v naši lastni režiji poteka od leta 2018, a ne redno. Tukaj predstavljamo prve podatke iz popisnih let. Na lokaciji smo zabeležili štiri vrste selečih se dvoživk, in sicer navadno krastačo (Bufo bufo), sekuljo (Rana temporaria), rosnico (R. dalmatina) in velikega pupka (Triturus carnifex). Najštevilčnejša je bila navadna krastača, s 500–1000 selečimi se osebki na leto z okoli 99 % osebkov vseh zabeleženih vrst dvoživk. Samci so v populaciji prevladovali nad samicami v razmerju 4–12:1, smrtnost pa je bila relativno nizka (med 5 in 12 %), a se je v sklopu akcije ta namerno zmanjšala. Aktivnost dvoživk je skozi večer upadla in je korelirala zmerno pozitivno, a statistično značilno s temperaturo zraka. Podatki prikazujejo pomen monitoringov spomladanskih selitev dvoživk tudi čez manj prometne ceste, ki so redko vključene v podobne raziskave.

• Keywords: dvoživke, zoologija, Vinogradniška pot, Razvanje, spomladanska selitev dvoživk, črna točka, Bufo bufo