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Povzetek: The efficient implementation of forest-related policies under the European Green Deal requires assessing the capacity of ecosystems to deliver ecosystem services (ES) and involving stakeholders in the decision-making process. Public involvement ensures that policies align with local needs, relevant ES are identified, ES supply is optimised, and acceptance of measures is increased. We conducted a nationwide public survey (n = 813) in Slovenia, consisting of three sections: (1) knowledge and perceptions related to ES and the bioeconomy, (2) a discrete choice experiment (DCE) to elicit preferences for possible changes in the supply of forest ES and products based on them (FPS) that support the strategic objectives of the EU Green Deal, and (3) questions on socio-demographics, lifestyle, and consumer behaviour. The results of the DCE, together with respondents’ place of residence using Moran’s I statistic, allowed us to identify areas of distinct preferences (ADP), either positive or negative, for FPS. Based on biophysical indicators, we assessed the potential supply of FPS within and outside ADP and found statistically significant differences. Then we compared potential supply with public preferences (demand) for FPS, which yielded several findings, most notably three cases where higher potential supply of FPS within the ADP coincided with positive preferences in the same ADP: high-quality wood, strictly protected forests, and forest tourism involving non-owners. In all these cases, mobilising additional FPS would benefit communities within the ADP (meeting allocative efficiency), and their high potential supply makes this feasible as well (meeting resource use efficiency).
Ključne besede: forest ecosystem services, public preferences, potential ES supply, spatial matching, EU forest-related policies, policy efficiency
Objavljeno v DiRROS: 09.04.2026; Ogledov: 22; Prenosov: 15
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Povzetek: 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.
Ključne besede: National Forest Inventory, Tilio-Acerion, characteristic broadleaf trees, forest composition, forest structure, deadwood biomass
Objavljeno v DiRROS: 08.04.2026; Ogledov: 27; Prenosov: 21
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Povzetek: Invasive forest pests represent a major threat to ecosystems and the economy. They are often first detected in urban forests, making these environments strategic for early warning and global forest protection efforts. Although early detection is crucial to the success of eradication measures, the surveillance capacity of official authorities is limited. Citizen science can help bridge this gap—provided that citizens are aware of the stakes and prepared to play an active role. In this context, mainstream media may serve as a key channel to raise public awareness. We surveyed mainstream media coverage of 14 native, invasive alien non-regulated, and quarantine forest pests across 15 European countries, mostly over the 2011–2024 period. Searching for the scientific or common name of these pests in each national language returned more than 16,000 outputs. While quarantine species were mentioned less frequently than native pests, they were more likely to be mentioned in countries where they have occurred, remain present, or have been eradicated. Interestingly, we also found references to quarantine pests in countries where they were not officially reported. This last finding highlights the potential of mainstream media to attract public attention to tree pests before the surge of an outbreak—an opportunity that should be more systematically leveraged to support early detection and citizen engagement, particularly in cities where the risk of introduction and the potential for early detection is the highest.
Ključne besede: awareness rising, forest, media, quarantine, pest insects
Objavljeno v DiRROS: 30.03.2026; Ogledov: 140; Prenosov: 90
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Povzetek: Monitoring of stable isotopes in throughfall (δ18O, δ2H) and meteorological parameters is a valuable tool for researching forest hydrology, particularly during extreme events like droughts and floods. This study presents the first systematic analysis of air temperature and precipitation changes over the past 65 years in two Slovenian lowland forests: Murska šuma and Krakovski gozd, in combination with isotopic composition research of throughfall. The observed rising air temperatures and altered precipitation patterns are reflected in the isotopic composition of throughfall. Over the last 65 years, air temperature has increased by approximately 2.5 °C. Although total annual precipitation amounts have remained relatively stable, in the last 35 years there is a notable decrease in precipitation in growing season and an increase during the dormant season, influenced by air masses of Mediterranean origin. Extreme drought in 2022 and flood in 2023 are confirmed by the Standardized Precipitation Index and isotopic variations in throughfall due to fractionation processes. Annual variability appears as seasonal changes, with sine-curve amplitudes of 3.71‰ in Krakovski gozd and 3.61‰ in Murska šuma. Together with the Local Meteoric Water Lines, these patterns support estimates of groundwater mean residence time and the origin of water used by trees.
Ključne besede: stable isotopes, oxygen, hydrogen, climate change, hydrology forest, throughfall, Standardized Precipitation Index
Objavljeno v DiRROS: 27.03.2026; Ogledov: 160; Prenosov: 75
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Povzetek: The genera Sclerogaster and Wakefieldia are infrequently reported, especially from poorly studied regions of the Balkan Peninsula. Research on hypogeous fungi in North Macedonia has been advancing steadily in recent years, leading to a growing number of collections in the Macedonian Collection of Fungi. Molecular phylogenetic and morphological observations of deposited specimens of Sclerogaster and Wakefieldia were performed, and compared with collections from other areas and sequences in nucleotide databases. Molecular genetic diversity based on rDNA ITS and LSU markers and morphological characteristics of the specimens from two genera are presented, and information on their ecology is provided. Two species of Sclerogaster: S. hysterangioides, reported for the first time for the Balkan Peninsula, and S. compactus, a second record for the Balkan Peninsula, were distinguished. Sclerogaster hysterangioides was found in different habitat types at four sites, while S. compactus was present at only one site in a riparian community of Populus alba and Ulmus laevis. The genus Wakefieldia is represented with a single species, W. macrospora, in Europe. Our collections, which constitute the second records for the Balkan Peninsula, originate from mixed deciduous forest of Quercus pubescens and Carpinus orientalis. The phylogenetic analyses confirm the morphological identification of the voucher specimens as S. hysterangioides and W. macrospora. The investigation of hypogeous fungi in North Macedonia demonstrates the rich diversity of this ecological group of fungi, and calls for future studies including comprehensive morphological observations and additional molecular markers.
Ključne besede: Balkan Peninsula, DNA-barcoding, fungi, morphology, mycodiversity, phylogenetics
Objavljeno v DiRROS: 06.03.2026; Ogledov: 274; Prenosov: 147
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