7 research outputs found

    Lichens and allied fungi new for Latvia

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    Six lichenized fungi (Calicium parvum, C. trabinellum, Carbonicola anthracophila, C. myrmecina, Peltigera extenuata, Pycnora sorophora), two lichenicolous (Clypeococcum hypocenomycis and Illosporium carneum), and two saprobic calicioid fungi (Chaenothecopsis savonica and Microcalicium arenarium) are reported as new for Latvia.

    The main drivers for the occurrence of six red-listed epiphytic bryophytes and lichens in the boreo-nemoral forest landscape, Latvia

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    Forest landscape plays a significant role in rare cryptogam distribution. However, data about the environmental demands of rare epiphytic bryophytes and lichens in boreo-nemoral forest landscapes are not complete. In this study, we focused on finding the main environmental predictors influencing the occurrence of three red-listed epiphytic bryophytes and three red-listed epiphytic lichens in the Latvian boreo-nemoral forest landscape. We obtained the records of species from the Natural Data Management System OZOLS database, which is a national information system on all rare taxa. We analyzed the occurrence of species in relation to forest stand age and area, forest type, heterogeneity and tree bark pH class. We found that selected red-listed bryophyte and lichen occurrence was mainly influenced by forest stand age and area. However, each of the red-listed epiphytic bryophyte and lichen has their own ecological demands in the boreo-nemoral landscape

    Where the interesting species grow ÔÇô remarkable records of lichens and lichenicolous fungi found during a Nordic Lichen Society meeting in Estonia

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    In August 2019, the Nordic Lichen Society held its bi-annual meeting and excursion in south-western Estonia. The most remarkable findings of lichenized and lichenicolous fungi are recorded herewith, including nine new species (of them two lichenicolous), and one new intraspecific taxon for the country. Full species lists are provided for two notable locations, sandstone outcrop at the river Pa╠łrnu and an oak woodland in the Naissoo Nature Reserve, for which no previous data were available, to illustrate the importance of collective survey effort.   2019. a augustis toimus Eestis korraline, iga kahe aasta ja╠łrel korraldatav Po╠âhjamaade Lihhenoloogide U╠łhingu kokkutulek ja ekskursioon. Artiklis anname u╠łlevaate huvitavatest lihheniseerunud ja lihhenikoolsete liikide leidudest, sealhulgas u╠łheksa (neist kahe lihhenikoolse) liigi esmaleiust Eestis ja u╠łhe liigisisese taksoni esmaleiust. Lisaks esitatakse lihheniseerunud, lihhenikoolsete ja neile la╠łhedaste seente ta╠łisnimekirjad, mis koostati kahe elupaiga ÔÇô Tori Po╠ârgu Maastikukaitseala liivakivipaljandi ning Naissoo Looduskaitseala koosseisu ja╠ła╠łva Naissoo tammiku ÔÇô kohta

    The potential antifeedant activity of lichen-forming fungal extracts against the invasive Spanish slug (Arion vulgaris)

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    The protection of horticultural crops from slug feeding can be achieved using slug pellets; however, application of molluscicides is not always safe to the environment. There is a need for alternative methods to reduce the palatability of crop plants. Chemical properties of secondary compounds from lichens influence the feeding behaviour of slugs. Liquid extracts of three lichen species, Cladonia rangiferina (L.) F.H. Wigg., Cladonia stellaris (Opiz) Pouzar V─Ťzda and Pseudevernia furfuracea (L.) Zopf, were applied to three different crops and tested for their antifeedant properties against an important agricultural pest, the Spanish slug Arion vulgaris (Moquin-Tandon, 1855). All three extracts had specific activity, showing a decrease in grazing intensity and also slug weight loss after feeding on treated food. Slugs significantly gained weight after feeding under control condition; however, they did not gain weight when fed on extract-treated food. The most effective extract was from P. furfuracea. We propose to use properties of lichen extracts to develop new environmentally friendly molluscicides.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author