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2. New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 24Marko S. Sabovljević, Gordana Tomović, Predrag Lazarević, Maja Lazarević, Constantin-Ciprian Bîrsan, Ana-Maria Moroșanu, Boris Assyov, Ermin Mašić, Sabina Trakić, Vladan Djordjević, Lado Kutnar, 2026, original scientific article Abstract: This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: green algae Cosmarium formosulum and Tetraspora gelatinosa, fungi Coprinopsis melanthina, Heteroxylaria oxyacanthae, Lophodermium petiolicolum, Peziza ostracoderma, and Phylloporia ribis, lichen Sphaerophorus globosus, liverworts Scapania curta and Solenostoma gracillimum, mosses Buxbaumia viridis, Sphagnum cuspidatum var. viride, and Sphagnum medium, dicots Hippuris vulgaris and Viola orbelica and monocots Arundo donax, × Gymnigritella suaveolens, Ophrys insectifera, and Ornithogalum montanum.
Keywords: new reports, taxa
Published in DiRROS: 08.04.2026; Views: 28; Downloads: 12
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3. Developing National Forest Inventory-based indicators for monitoring minority ravine forestsAnže Martin Pintar, Janez Kermavnar, Luka Krajnc, Gal Kušar, Lado Kutnar, 2026, original scientific article Abstract: Ravine forests represent a priority habitat type of the European Natura 2000 network for which empirical data are limited, particularly regarding the influence of stand structure on biodiversity. Assessment of forest habitats can largely be supported by National Forest Inventory (NFI) data, which enable frequent and spatially dense monitoring of the stand conditions and potential vulnerability of forest habitat types. In this study, we established an independent, nationwide classification system of close-to-nature managed ravine forests dominated by different characteristic broadleaf trees, based on stratifying NFI data into homogeneous subtypes. On the basis of tree species composition, which is a basic component in forest habitat types, we identified three subtypes of ravine forests, dominated by Acer pseudoplatanus, Fraxinus excelsior, and Tilia spp. We examined these subtypes using structural, compositional, deadwood, and diversity-related indicators. The Tilia-dominated subtype was more common in the lower altitudinal belt (≤ 502 m), while the Acer-dominated subtype was more prominent in the higher belt (> 502 m). The Acer-dominated subtype predominated in stands with SDI lower than 432, while the Tilia-dominated subtype was relatively more common in stands with higher SDI. In stands with Evenness values lower than 0.3, the Acer-dominated subtype predominated, while in stands with higher Evenness index values, the Fraxinus-dominated subtype was more common. In the Fraxinus-dominated subtype, the volume of standing dead trees was statistically significantly higher than in the other two subtypes (14 m3 /ha compared to 8 m3 /ha) due to the high mortality rate of trees caused by ash dieback. In all three subtypes of ravine forests, we observed a lack of natural regeneration of key tree species, which is crucial for maintaining the favorable conservation status of the habitat type. The observed ranges of structural and compositional attributes, deadwood components, and diversity indices provide empirical reference conditions that reflect the current nationwide variability of ravine forests.
Keywords: National Forest Inventory, Tilio-Acerion, characteristic broadleaf trees, forest composition, forest structure, deadwood biomass
Published in DiRROS: 08.04.2026; Views: 27; Downloads: 21
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4. Integrated multi-scale ecohydrogeological monitoring of spatio-temporal dynamics in karst critical zonesNataša Ravbar, Metka Petrič, Mitja Ferlan, Uroš Novak, Janez Kermavnar, Lado Kutnar, Aleksander Marinšek, Daniel Žlindra, Blaž Kogovšek, Erika Kozamernik, Cyril Mayaud, David Štefanič, Sara Skok, Janez Mulec, Stanka Šebela, Urša Vilhar, 2026, other scientific articles Abstract: Contemporary environmental concerns highlight the vulnerability of karst environments to changing hydrometeorological patterns and vegetation disturbance, necessitating a unified, interdisciplinary strategy for comprehensive understanding. This paper critically examines the current state of research. To overcome the identified gaps, it presents an integrated multi-scale ecohydrogeological monitoring approach tailored to karst critical zones (KCZ) and its spatio-temporal variability. Forested karst aquifer in Slovenia is used as a case study to demonstrate and assess the strengths and limitations of the proposed monitoring framework. To decipher flow dynamics and propose customized data collection strategies the approach combines surface and underground sites and employs advanced methods adapted to the challenges of karst environments. The results highlight the benefits and advancements of monitoring and sampling approaches to ensure representativeness in heterogeneous environments. The focus is on the use of enhanced precipitation monitoring systems to expand sampling areas nearly fivefold and improve precipitation and throughfall measurements. Additionally, customized lysimeter techniques for karst soils and microscale adaptations for cave exploration have been developed, addressing the challenges of instrument placement in environments with significant variability. Further opportunities lie in improving instrument protection, integrating sensor networks, combining remote sensing and scaling from plot to aquifer level. However, challenges remain in achieving spatio-temporal representativeness and ensuring the operational reliability of snow monitoring, soil solution sampling and drip flow measurements. Threats include environmental pressures and hydrometeorological conditions, equipment tampering and funding stability. Nevertheless, this comprehensive approach improves monitoring of ecohydrogeological processes in the KCZ, promotes interdisciplinary collaboration and environmental resource management.
Keywords: Karst, integrated monitoring, interdisciplinary strategy, hydrological processes, environmental management, ecohydrology
Published in DiRROS: 21.03.2026; Views: 200; Downloads: 152
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6. Dataset on the topography, soil, vegetation and stand characteristics of Tilio-Acerion forests (Boč, Slovenia)Lado Kutnar, Anže Martin Pintar, Aleksander Marinšek, Janez Kermavnar, 2026, complete scientific database of research data Keywords: research data, forests stand, Boc, Slovania
Published in DiRROS: 30.01.2026; Views: 394; Downloads: 59
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7. Poročilo o izvedbi naloge javnega naročila: »Vzorčenje nadzemne žive in odmrle biomase ter tal v gozdovih 2025-2026« MEJNIK 2Andreja Ferreira, Polona Hafner, Janez Kermavnar, Luka Krajnc, Gal Kušar, Lado Kutnar, Tom Levanič, Boštjan Mali, Aleksander Marinšek, Iza Petek, Anže Martin Pintar, Primož Simončič, Saša Šercer, Mitja Skudnik, Polona Vukovič, Daniel Žlindra, 2025, treatise, preliminary study, study Keywords: gozdna statistika
Published in DiRROS: 28.01.2026; Views: 287; Downloads: 0
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9. Dataset on microclimate properties in sinkholes of Dinaric beech forests (Slovenia) a decade after the silvicultural treatmentSaša Šercer, Urša Vilhar, Janez Kermavnar, Lado Kutnar, Aleksander Marinšek, Nataša Šibanc, Petr Baldrian, Vendula Brabcová, Tijana Martinović, Martina Štursová, Tanja Mrak, 2026, complete scientific database of research data Abstract: Information on the funders/programmes/projects that made the data collection possible: ARIS J4-4542/22-04480L Natural regeneration processes in beech forests after disturbance, ARIS research core funding P4-0107 Forest ecology, biology and technology, ARIS post-doc project Z4-4543 Long-term changes of forest vegetation caused by global and local environmental change drivers, the project Development of research infrastructure for the international competitiveness of the Slovenian RRI space – RI-SI-LifeWatch, financed by the Republic of Slovenia, Ministry of Education, Science and Sport and the European Union from the European Regional Development Fund. The forest treatment experiment was supported by ManFor CBD 2010-2015 Life Environment Project LIFE09 ENV/IT/000078.
Keywords: microclimate properties, sinkholes, Dinaric beech forests, Slovenia
Published in DiRROS: 16.01.2026; Views: 412; Downloads: 275
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10. Gradnova belogabrovja na karbonatnih in mešanih kamninahAndrej Rozman, Aleš Poljanec, Valerija Babij, Matija Klopčič, Igor Dakskobler, Lado Kutnar, Andrej Bončina, 2025, original scientific article Keywords: Gozdni rastiščni tipi, Slovenija
Published in DiRROS: 18.12.2025; Views: 497; Downloads: 174
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