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21.
Predicting future trends - responses of beech and fir in the Carpathian region : international conference
2024, proceedings of peer-reviewed scientific conference contributions (international and foreign conferences)

Published in DiRROS: 02.09.2024; Views: 136; Downloads: 921
.pdf Full text (8,40 MB)
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22.
Poročilo o preskusu št.: LVG 2024-105 : vzorec št. 2024/00649
Barbara Piškur, Patricija Podkrajšek, Špela Hočevar, 2024, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize, Geosmithia morbida, bolezen tisočerih rakov, qPCR, Juglans, program preiskav
Published in DiRROS: 30.08.2024; Views: 196; Downloads: 0
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23.
Poročilo o preskusu št.: LVG 2024-104 : vzorec št. 2024/00614
Barbara Piškur, Špela Hočevar, 2024, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize, Geosmithia morbida, PCR v realnem času, programi preizkav
Published in DiRROS: 30.08.2024; Views: 111; Downloads: 0
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24.
Poročilo o preskusu št.: LVG 2024-103 : vzorec št. 2024/00615
Barbara Piškur, Špela Hočevar, 2024, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize, borov smolasti rak, PCR v realnem času, programi preizkav
Published in DiRROS: 30.08.2024; Views: 193; Downloads: 0
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Poročilo o preskusu št.: LVG 2024-096 : vzorec št. 2024/00581
Nikica Ogris, 2024, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize
Published in DiRROS: 29.08.2024; Views: 96; Downloads: 49
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28.
Razporeditev vodnih makrofitov v dveh vodotokih kraške reke Ljubljanice, Obrh in Rak
Marija Kravanja, Mateja Germ, 2024, original scientific article

Abstract: Rivers are spatially and temporally heterogeneous systems that are susceptible to changes due to anthropogenic influences. These can significantly alter water quality and river communities, including macrophytes, which are involved in nutrient cycling, energy flow and sedimentation processes, and provide habitats for other organisms. The presence, abundance, and distribution of macrophytes can thus serve as indicators of the state of aquatic ecosystems. Rivers that flow (partially) underground are particularly susceptible to (human) impacts from the hinterland due to their lower self-purification capacity. Using a modified RCE (a Riparian, Channel, and Environmental Inventory) method, we classified the Rak River as first or second RCE quality class, and the Obrh River as second or third RCE quality class. According to the River Macrophyte Index (RMI), the ecological status of both rivers was moderate, good or very good, except for the first section of the Obrh, the status of which was assessed as poor. The ecomorphological preservation of both rivers and suitable conditions for macrophyte growth contribute to the high species diversity observed in both rivers: a total of 36 taxa were recorded in the Obrh and 38 in the Rak. In the latter, the presence of Myriophyllum verticillatum L. was recorded for the first time at the time of our sampling. Almost one third of the species in each of the rivers are listed on the Slovenian Red list of threatened pteridophytes and seed plants, supporting the evidence of their high naturalness and emphasizing the importance of appropriate management of karst watercourses.
Keywords: karst, macrophytes, RCE method
Published in DiRROS: 29.08.2024; Views: 112; Downloads: 160
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29.
Poročilo o preskusu št.: LVG 2024- 095 : vzorec št. 2024/00498
Zina Devetak, Barbara Piškur, 2024, expertise, arbitration decision

Keywords: varstvo gozdov, morfološke analize
Published in DiRROS: 29.08.2024; Views: 189; Downloads: 0
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30.
The genetic consequences of population marginality : a case study in maritime pine
Adélaïde Theraroz, Carlos Guadaño-Peyrot, Juliette Archambeau, Sara Pinosio, Francesca Bagnoli, Andrea Piotti, Camilla Avanzi, Giovanni G. Vendramin, Ricardo Alía, Delphine Grivet, Marjana Westergren, Santiago C. González-Martínez, 2024, original scientific article

Abstract: Aim: Marginal tree populations, either those located at the edges of the species' rangeor in suboptimal environments, are often a valuable genetic resource for biologicalconservation. However, there is a lack of knowledge about the genetic consequencesof population marginality, estimated across entire species' ranges. Our study ad-dresses this gap by providing information about several genetic indicators and theirvariability in marginal and core populations identified using quantitative marginalityindices.Location: Southwestern Europe and North Africa.Methods: Using 10,185 SNPs across 82 populations of maritime pine (Pinus pinasterAit.), a widespread conifer characterised by a fragmented range, we modelled therelationship of seven genetic indicators potentially related to population evolution-ary resilience, namely genetic diversity (based on both all SNPs and outlier SNPs),inbreeding, genetic differentiation, recessive genetic load and genomic offset, withpopulation geographical, demo-historical and ecological marginality (as estimated bynine quantitative indices). Models were constructed for both regional (introducinggene pool as a random factor) and range-wide spatial scales.Results: We showed a trend towards decreasing overall genetic diversity and increas-ing differentiation with geographic marginality, supporting the centre-periphery hy-pothesis (CPH). However, we found no correlation between population inbreedingand marginality, while geographically marginal populations had a lower recessive ge-netic load (only models without the gene pool effect). Ecologically marginal popula-tions had a higher genomic offset, suggesting higher maladaptation to future climate,albeit some of these populations also had high genetic diversity for climate outliers.Main Conclusions: Overall genetic diversity (but not outlier-based estimates) and dif-ferentiation patterns support the CPH. Ecologically marginal populations and those atthe southern edge could be more vulnerable to climate change due to higher climate maladaptation, as predicted by genomic offsets, and/or lower potentially adaptive ge-netic diversity. This risk is exacerbated by typically small effective population sizesand increasing human impact in marginal populations.
Keywords: population genetics, conservation genetics, marginal populations, Pinus pinaster, genetic indicators
Published in DiRROS: 29.08.2024; Views: 118; Downloads: 426
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