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Mid-Cretaceous calcarenite in stone products from the Roman colony of Emona, Regio X (modern Ljubljana, Slovenia)
Rok Brajkovič, Bojan Djurić, David Gerčar, Blanka Cvetko Tešović, Boštjan Rožič, Luka Gale, 2022, original scientific article

Abstract: Over the course of studying stone products from theRoman colony of Emona (Regio X), stratigraphicallyundefined calcarenite that was used to make simplesepulchral and architectural stone products wasdetected. The calcarenite used is late Aptian to earlyCenomanian in age. The corresponding facies werefound in the Lower Flyschoid Formation outcroppingnear the town of Medvode, within the local radius ofEmona. The Roman quarry was likely located in thisarea near the Sava River. According to the collecteddata, the quarry was in operation mainly in the 1stcentury.
Keywords: Cretaceous, microfacies, quarry production, Regio X, Roman time, stone products
Published in DiRROS: 17.08.2022; Views: 50; Downloads: 8
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Diversity, migration routes, and worldwide population genetic structure of Lecanosticta acicola, the causal agent of brown spot needle blight
Marili Laas, Kalev Adamson, Irene Barnes, Josef Janoušek, Martin S. Mullett, Katarína Adamčíková, Mitsuteru Akiba, Ludwig Beenken, Helena Bragança, Timur S. Bulgakov, Barbara Piškur, 2022, original scientific article

Abstract: Lecanosticta acicola is a pine needle pathogen causing brown spot needle blight that results in premature needle shedding with considerable damage described in North America, Europe, and Asia. Microsatellite and mating type markers were used to study the population genetics, migration history, and reproduction mode of the pathogen, based on a collection of 650 isolates from 27 countries and 26 hosts across the range of L. acicola. The presence of L. acicola in Georgia was confirmed in this study. Migration analyses indicate there have been several introduction events from North America into Europe. However, some of the source populations still appear to remain unknown. The populations in Croatia and western Asia appear to originate from genetically similar populations in North America. Intercontinental movement of the pathogen was reflected in an identical haplotype occurring on two continents, in North America (Canada) and Europe (Germany). Several shared haplotypes between European populations further suggests more local pathogen movement between countries. Moreover, migration analyses indicate that the populations in northern Europe originate from more established populations in central Europe. Overall, the highest genetic diversity was observed in south-eastern USA. In Europe, the highest diversity was observed in France, where the presence of both known pathogen lineages was recorded. Less than half of the observed populations contained mating types in equal proportions. Although there is evidence of some sexual reproduction taking place, the pathogen spreads predominantly asexually and through anthropogenic activity.
Keywords: brown spot needle blight, Lecanosticta acicola, pones, Pinus spp., popularion structure
Published in DiRROS: 12.08.2022; Views: 29; Downloads: 15
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In memoriam : Janez Ponikvar (1940–2021)
Vili Potočnik, 2022, popular article

Published in DiRROS: 11.08.2022; Views: 28; Downloads: 12
.pdf Full text (140,92 KB)

Upravljanje z mestnimi gozdovi postaja vse aktualnejši izziv slovenskih mest
Tina Simončič, Matjaž Guček, Jurij Kobe, 2022, professional article

Keywords: mestni gozdovi, upravljanje z gozdovi, Slovenija
Published in DiRROS: 11.08.2022; Views: 24; Downloads: 12
.pdf Full text (96,37 KB)

Namnožitev bukovega rilčkarja skakača in bukove listne uši v letu 2022
Marija Kolšek, 2022, professional article

Keywords: varstvo gozdov, hrošči, bukev, bukov rilčkar skakač, bukova listna uš, hiranje
Published in DiRROS: 11.08.2022; Views: 10; Downloads: 9
.pdf Full text (147,39 KB)

Izpust risa Bliska in praznovanje 30-letnice programa LIFE
Maja Sever, 2022, popular article

Keywords: ris, doselitev, Slovenija, gospodarjenje z divjadjo
Published in DiRROS: 11.08.2022; Views: 14; Downloads: 9
.pdf Full text (192,15 KB)

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