1. Kako ravnamo s sečnimi ostanki za preprečevanje prenamnožitve podlubnikov?Maarten De Groot, Simon Zidar, Luka Capuder, Martin Križaj, Tine Hauptman, Marija Kolšek, 2025, professional article Keywords: sečni ostanki, podlubniki, varstvo gozdov
Published in DiRROS: 27.01.2026; Views: 373; Downloads: 149
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2. Predlog optimalnega števila in lokacij kontrolno-lovnih nastav za prezimele osebke osmerozobegasmrekovega lubadarja ( Ips typographus ) v Sloveniji za leto 2026Nikica Ogris, Marija Kolšek, 2026, other scientific articles Abstract: Pripravili smo predlog optimalnega števila in lokacij kontrolno-lovnih nastav za prezimele osebke osmerozobega smrekovega lubadarja (Ips typographus) (nastave I. serije) za leto 2026. Pri pripravi smo sledili predlogu postopka za določitev optimalnega števila in lokacij kontrolno-lovnih nastav za osmerozobega smrekovega lubadarja. Predlagamo, da se nastave I. serije v letu 2026 položi na 107 lokacijah.
Keywords: gozdovi, varstvo gozdov, kontrolno-lovne nastave, postopek optimizacije, osmerozobi smrekov lubadar, Ips typographus, smreka, Picea abies, spremljanje, monitoring, zatiranje
Published in DiRROS: 09.01.2026; Views: 295; Downloads: 147
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3. Razširjenost dvojnozobega smrekovega lubadarja (Ips duplicatus) v Sloveniji v letu 2025Maarten De Groot, Tine Hauptman, Marija Kolšek, 2025, other scientific articles Abstract: Članek prikazuje rezultate spremljanja razširjenosti vrste Ips duplicatus (Sahlberg, 1836) v Sloveniji v letu 2025. Uporabili smo 12 režastih pasti tipa Theysohn, ki so bile opremljene s feromonom Dupliwit in ID ECOLURE. Prisotnost vrste smo potrdili na dveh lokacijah, skupno pa smo ujeli 4 osebke. Predstavljena je razprava o pomenu teh najdb v kontekstu razširjenosti, spremljanja in upravljanja dvojnozobega smrekovega lubadarja.
Keywords: spremljanje, navadna smreka, Picea abies, podlubniki, invazivna tujerodna vrsta
Published in DiRROS: 08.12.2025; Views: 273; Downloads: 214
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4. Divergent trends in insect disturbance across Europe's temperate and boreal forestsTomáš Hlásny, Roman Modlinger, Jostein Gohli, Rupert Seidl, Paal Krokene, Iris Bernardinelli, Simon Blaser, Gediminas Brazaitis, Gailenė Brazaitytė, Eckehard Brockerhoff, Maarten De Groot, Marija Kolšek, 2025, original scientific article Abstract: Ongoing shifts in climate and land use have altered interactions between trees and insect herbivores, changing biotic disturbance regimes. However, as these changes are complex and vary across host species, insect taxa, and feeding guilds, they remain poorly understood. We compiled annual records of forest insect disturbance from 15 countries in temperate and boreal Europe, spanning the period from 2000 to 2022. The dataset comprises 1361 time series characterizing the dynamics of 50 herbivorous insects. We used this dataset to test whether insect disturbance has systematically changed during the 23-year period across host trees and feeding guilds, whether it varies along latitudinal and climatic gradients, and whether synchrony exists among species in the same guild or among species sharing the same host. Since 2000, borer disturbance was predominantly concentrated on gymnosperms, while defoliators impacted gymnosperms and angiosperms more evenly. While 85.8% of gymnosperm disturbance was inflicted by a single species, Ips typographus, the majority of disturbances to angiosperms were caused by six different species. Borer impact on gymnosperms has increased in the 21st century, while defoliator impact has decreased across both clades. In contrast to diverging temporal trends, disturbance was consistently greater in warmer and drier conditions across feeding guilds and host types. We identified significant synchrony in insect disturbance within host types and feeding guilds but not between these groups, suggesting shared drivers within guilds and host types. Increasing insect disturbance to gymnosperms may catalyze adaptive transformations in Europe's forests, promoting a shift from historical conifer-dominated management to broadleaved trees, which are less affected by insect herbivores. Our findings reveal a diversity of trends in insect herbivory, underscoring the need to strengthen monitoring and research in order to better understand underlying mechanisms and identify emerging threats that may not be apparent in currently available data.
Keywords: climate change, ecosystem adaptation, forest disturbance, forest insect herbivores, host tree types, insect feeding guilds
Published in DiRROS: 26.11.2025; Views: 793; Downloads: 215
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5. Navodila za ravnanje s smrekovimi sečnimi ostanki za preprečevanje prenamnožitev podlubnikovMaarten De Groot, Tine Hauptman, Luka Capuder, Simon Zidar, Marija Kolšek, 2025, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: sečni ostanki, podlubniki, gozdnogojitveni preprečevalni ukrepi
Published in DiRROS: 01.10.2025; Views: 888; Downloads: 449
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8. Protipožarne preseke : zakonodaja, kategorizacija, sistem umeščanja in evidentiranjaAndreja Nève Repe, Jaša Saražin, Marija Kolšek, Darko Pristovnik, Boštjan Košiček, Matej Kravanja, Aleš Poljanec, 2025, professional article Keywords: gozdni požari, varstvo pred požari
Published in DiRROS: 01.08.2025; Views: 638; Downloads: 262
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9. Influence of felling residue management on bark beetles and other insect diversityMaarten De Groot, Luka Capuder, I. G. Farah Kootstra, Martin Križaj, Marija Kolšek, Mitja Ferlan, Tine Hauptman, 2025, original scientific article Abstract: Bark beetle outbreaks have caused large-scale tree mortality and damage in recent decades, primarily following an increase in largescale forest disturbances induced by climate change. After tree logging operations, leftover branches are traditionally piled to make the potential brood material less suitable for bark beetles, thereby lowering the risk of subsequent attacks on surrounding trees. On the other hand, the residues could prove valuable to biodiversity by supplementing important habitat, given the apparent decline in deadwood in European forests and its associated saproxylic fauna. Our aim was to identify the most successful method of logging residue management for both bark beetle management and biodiversity. We focussed on Norway spruce felling residues, their associated bark beetle pests and saproxylic insect orders, beetle families, and Cerambycidae species.We prepared four treatments: (i) logging residues in piles, (ii) scattered logging residues, (iii) logging residues removed, and (iv) a control plot with no felling activity. Five plots per treatment were established at each site. In total, three sites were selected: one at a high elevation and two at lower elevations in different parts of Slovenia. The catch was counted to the order level, the attracted beetles were identified to the family level, and Cerambycidae and Scolytinae to the species level. We found that the treatments with residues attracted the highest diversity of insect orders and the most beetles across different families, including Cerambycidae. Furthermore, we found that the species composition differed between control and residue treatments, although no difference was observed in species richness. More bark beetles and a higher number of bark beetle species were attracted to both piled and scattered residues. Thick branches were more frequently attacked in scattered residues. There was no difference in the number of attacked trees (within a plot) one month after treatment. Hence, leaving logging residues in the forest could represent an interesting compromise between pest management and biodiversity conservation. Conf licting aims, such as increasing biodiversity or controlling bark beetles, should be carefully considered in the management decisions.
Keywords: Scolytinae, forest management, Cerambycidae, Norway spruce, multipurpose forest management, felling residue
Published in DiRROS: 21.07.2025; Views: 642; Downloads: 392
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10. Influence of residual felling on bark beetles and other insect diversityMaarten De Groot, Luka Capuder, I. G. Farah Kootstra, Martin Križaj, Marija Kolšek, Mitja Ferlan, Tine Hauptman, 2025, complete scientific database of research data Keywords: research data, bark beetles
Published in DiRROS: 30.06.2025; Views: 792; Downloads: 439
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