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15. Ohranjanje biotske raznovrstnosti : študijska gradiva pri predmetu Ohranjanje biotske raznovrstnosti (5 vsebinskih sklopov)Lado Kutnar, 2024, drugo učno gradivo Ključne besede: biotska raznovrstnost, ohranitvena biologija, izumiranje vrst, ravni biotske raznovrstnosti, genetska pestrost, vrstna pestrost, ekosistemska in krajinska pestrost, dejavniki ogrožanja, onesnaženje okolja, invazivne tujerodne vrste, podnebne spremembe, degradacija habitatov, fragmentacija habitatov, mehanizmi ohranjanja biotske raznovrstnosti, rdeči seznam vrst, zavarovane vrste, Natura 2000, Slovenija
Objavljeno v DiRROS: 03.04.2024; Ogledov: 60; Prenosov: 0 |
16. Kako podnebne spremembe in velikopovršinske motnje vplivajo na naravne ekosisteme? : učno gradivo pri predmetu Globalne spremembe in gozdni ekosistemi, BF Odd. za gozdarstvo in obnovljive gozdne vireLado Kutnar, 2024, drugo učno gradivo Ključne besede: podnebne spremembe, motnje, temperature, gozdni ekosistemi, drevesne vrste, pričakovana razporeditev gozdov, model, IPCC, ARSO, Slovenija
Objavljeno v DiRROS: 03.04.2024; Ogledov: 44; Prenosov: 0 |
17. Poročilo o preskusu št.: LVG 2024-020 : vzorec št. 2024/00055Barbara Piškur, Špela Hočevar, Maarten De Groot, Nikica Ogris, 2024, izvedensko mnenje, arbitražna odločba Ključne besede: varstvo gozdov, morfološke analize, Armillaria, evropski macesen, Larix decidua, razkroj skorje, vlažno rastišče, mraznice, saprofit, trohnoba
Objavljeno v DiRROS: 02.04.2024; Ogledov: 51; Prenosov: 20
 Celotno besedilo (1,12 MB) |
18. Truffle mycorrhization in a pecan orchardMylla Trisha Mello Souza, Joice Aline Freiberg, Tine Grebenc, Marcelo Aloisio Sulzbacher, Diniz Fronza, Juliano Borela Magalhães, Vanessa da Rosa Gonçalves, Nathalie Caroline Hirt Kessler, Lucas Moura Somavilla, Zaida Ines Antoniolli, 2024, izvirni znanstveni članek Povzetek: The ectomycorrhizal association of Tuber spp. in orchards is essential for truffle production. In this sense, this study aimed to evaluate the ectomycorrhizal association of Tuber aestivum Vittad. and Tuber brumale Vittad. in pecan after five years of cultivation in an orchard. The experiment was conducted in Santa Maria – Rio Grande do Sul, Brazil, in a pecan orchard planted with seedlings inoculated with these two species of truffles. The orchard was characterized in terms of soil physical and chemical properties and soil type. Initially non-inoculated plants, plants inoculated with Tuber aestivum (TA), and plants inoculated with Tuber brumale (TB) were evaluated for the percentage (%) of roots colonized by Tuber spp., other ectomycorrhizae, and non-mycorrhizal roots. A reduction in the colonization of both truffle species was observed five years after transplanting the seedlings to the orchard but they have the potential to maintain the ectomycorrhizal association with pecan seedlings.
Ključne besede: Carya illinoinensis, ectomycorrhiza, truffle, tuber
Objavljeno v DiRROS: 26.03.2024; Ogledov: 92; Prenosov: 55
Celotno besedilo (4,12 MB)
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19. Importance of habitat context in modelling risk maps for two established invasive alien plant species : the case of Ailanthus altissima and Phytolacca americana in Slovenia (Europe)Maarten De Groot, Erika Kozamernik, Janez Kermavnar, Marija Kolšek, Aleksander Marinšek, Andreja Nève Repe, Lado Kutnar, 2024, izvirni znanstveni članek Povzetek: Forests are important ecosystems that face threats from climate change and global environmental shifts, with invasive alien plant species being a significant concern. Some of these invasive species have already become established, while others are in the process of naturalisation. Although forests are a relatively stable ecosystem, extreme weather events increase their vulnerability to change, and clearings left after natural disturbances are particularly susceptible to invasion by alien plant species (IAPS). We created risk maps of two species that have spread rapidly in the last decade: American pokeweed (Phytolacca americana) and the tree of heaven (Ailanthus altissima). We prepared a generalised linear model based on the occurrence data collected within the LIFE ARTEMIS project. Eleven environmental variables were used to determine habitat characteristics. We constructed two models for each species: one covering the entirety of Slovenia and the other specifically for the forested areas in Slovenia, with the latter incorporating forest-specific variables (such as forest sanitation felling and monocultures). We observed the presence of both species at lower altitudes and in close proximity to water sources. American pokeweed tends to occur nearer to railways, while the presence of the tree of heaven is associated with areas lacking carbonate parent material and influenced by land use patterns. In forested areas, the occurrence of American pokeweed is influenced by forest habitat characteristics, such as disturbances caused by extreme weather events or the prevalence of Norway spruce monocultures. In contrast, the occurrence of the tree of heaven is influenced by more general environmental variables, such as altitude and proximity to railways. Consequently, we have generated risk maps for the entirety of Slovenia and separately for forested areas, both of which indicate similar levels of risk, particularly for the tree of heaven. The risk map for American pokeweed highlights numerous vulnerable areas, especially forest edges, which are highly susceptible to invasion. Furthermore, there is a higher likelihood of this species occurring in areas that have undergone sanitation felling. This study suggests that the production of risk maps of IAPS could be improved by focussing on habitat types and taking into account habitat-specific variables. This approach could enhance the early detection and management of these invasive species.
Ključne besede: American pokeweed, tree of heaven, species distribution modelling, forests, forest disturbance, habitat suitability
Objavljeno v DiRROS: 26.03.2024; Ogledov: 88; Prenosov: 42
Celotno besedilo (1,72 MB)
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