Blar i Scientific publications på forfatter "Nordén, Björn"

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    • Agonimia globulifera new to mainland Norway 

      Olsen, Oddvar; Haug, Solveig; Nordén, Björn (Journal article; Peer reviewed, 2019)
      During an excursion to Vetvika, Bremanger municipality in Sogn og Fjordane in search of rare bryo-phytes, the first author made a collection of small black perithecia overgrowing bryophytes on shellsand. The collection was ...

    • Alien plants, animals, fungi and algae in Norway: an inventory of neobiota 

      Sandvik, Hanno; Dolmen, Dag; Elven, Reidar; Falkenhaug, Tone; Forsgren, Elisabet; Hansen, Haakon; Hassel, Kristian; Husa, Vivian; Kjærstad, Gaute; Ødegaard, Frode; Pedersen, Hans Christian; Solheim, Halvor; Stokke, Bård Gunnar; Åsen, Per Arvid; Åström, Sandra Charlotte Helene; Brandrud, Tor Erik; Elven, Hallvard; Endrestøl, Anders; Finstad, Anders Gravbrøt; Fredriksen, Stein; Gammelmo, Øivind; Gjershaug, Jan Ove; Gulliksen, Bjørn; Hamnes, Inger Sofie; Hatteland, Bjørn Arild; Hegre, Hanne; Hesthagen, Trygve H.; Jelmert, Anders; Jensen, Thomas Correll; Johnsen, Stein Ivar; Karlsbakk, Egil; Magnusson, Christer; Nedreaas, Kjell Harald; Nordén, Björn; Oug, Eivind; Pedersen, Oddvar; Pedersen, Per Anker; Sjøtun, Kjersti; Skei, Jon Kristian; Solstad, Heidi; Sundheim, Leif; Swenson, Jon; Syvertsen, Per Ole; Talgø, Venche; Vandvik, Vigdis; Westergaard, Kristine Bakke; Wienerroither, Rupert; Ytrehus, Bjørnar; Hilmo, Olga; Henriksen, Snorre; Gederaas, Lisbeth (Journal article; Peer reviewed, 2019)
      We present the results of an inventory and status assessment of alien species in Norway. The inventory covered all known multicellular neobiota, 2496 in total, 1039 of which were classified as naturalised. The latter ...

    • Alien species in Norway: results from quantitative ecological impact assessments 

      Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article, 2020)
      1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ...

    • Anisomeridium viridescens and Arthopyrenia callunae, two pyrenolichens new to Fennoscandia 

      Nordén, Björn; Aptroot, André (Journal article; Peer reviewed, 2018)
      Lichens with perithecioid ascomata (‘pyrenolichens’), especially weakly lichenized species, are poorly known in Norway, and Fennoscandia. Several new country records for Norway have been published recently (Nordén et al. ...

    • At which spatial and temporal scales can fungi indicate habitat connectivity? 

      Nordén, Jenni; Åström, Jens; Josefsson, Torbjörn; Blumentrath, Stefan; Ovaskainen, Otso; Sverdrup-Thygeson, Anne; Nordén, Björn (Journal article; Peer reviewed, 2018)
      Isolation of habitats in space and time affects species globally and in a multitude of ecosystems. It is however often difficult to assess the level of isolation from the point of view of the focal species. Indicator species ...

    • Bryocentria hypothallina (Hypocreales) – a new species on Metzgeria furcata 

      Nordén, Björn; Gardiennet, Alain; Priou, Jean-Paul; Döbbeler, Peter (Peer reviewed; Journal article, 2015)
      Bryocentria hypothallina (Bionectriaceae, Hypocreales) is described as a new species. It grows necrotrophically on the liverwort Metzgeria furcata (Metzgeriales), causing bleached, insular infections. Ascomata are formed ...

    • Bullatosporium taxicola, a new genus and species in Mytilinidiaceae (Pleosporomycetidae, Dothideomycetes) from western Norway 

      Andreasen, Mathias; Jordal, John Bjarne; Nordén, Björn (Peer reviewed; Journal article, 2024)
      The new genus and species Bullatosporium taxicola are described from dead wood of Taxus baccata in western Norway. Despite some morphological resemblance with Hysteriaceae, including low ascomata with a thick carbonized ...

    • Can large unmanaged trees replace ancient pollarded trees as habitats for lichenized fungi, non-lichenized fungi and bryophytes? 

      Nordén, Björn; Jordal, John Bjarne; Evju, Marianne (Journal article; Peer reviewed, 2017)
      Management of ancient trees constitutes a major dilemma in the conservation of associated biodiversity. While traditional methods are often advocated, such practices may incur considerable costs and their effects have ...

    • A corticolous Verrucaria species new to Norway 

      Nordén, Björn (Peer reviewed; Journal article, 2016)
      During a survey in temperate deciduous forests in southern Norway, a species of the predominatly epilithic genus Verrucaria was encountered on the base of a large Ulmus glabra tree. The specimen agreed well with the ...

    • Endophytes dominate fungal communities in six-year-old veteranisation wounds in living oak trunks 

      Menkis, Audrius; Redr, Deanne; Bengtsson, Vikki; Hedin, Jonas; Niklasson, Mats; Nordén, Björn; Dahlberg, Anders (Peer reviewed; Journal article, 2020)

    • Gastropod grazing may prevent reintroduction of declining N-fixing epiphytic lichens in broadleaved deciduous forests 

      Gauslaa, Yngvar; Johlander, Stina; Nordén, Björn (Journal article; Peer reviewed, 2018)
      We studied the potential to use reintroduction of two declining N-fixing flagship lichens to identify factors affecting failure or success in SW Swedish sites that had experienced substantially reduced acidification. After ...

    • Global Spore Sampling Project: A global, standardized dataset of airborne fungal DNA 

      Ovaskainen, Otso Tapio; Abrego, Nerea; Furneaux, Brendan; Hardwick, Bess; Somervuo, Panu; Palorinne, Isabella; Andrew, Nigel R.; Babiy, Ulyana V.; Bao, Tan; Bazzano, Gisela; Bondarchuk, Svetlana N.; Bonebrake, Timothy C.; Brennan, Georgina L.; Bret-Harte, Syndonia; Bässler, Claus; Cagnolo, Luciano; Cameron, Erin K.; Chapurlat, Elodie; Creer, Simon; D’Acqui, Luigi P.; de Vere, Natasha; Desprez-Loustau, Marie-Laure; Dongmo, Michel A. K.; Jacobsen, Ida B. Dyrholm; Fisher, Brian L.; de Jesus, Miguel Flores; Gilbert, Gregory S.; Griffith, Gareth W.; Gritsuk, Anna A.; Gross, Andrin; Grudd, Håkan; Halme, Panu; Hanna, Rachid; Hansen, Jannik; Hansen, Lars Holst; Hegbe, Apollon D. M. T.; Hill, Sarah; Hogg, Ian D.; Hultman, Jenni; Hyde, Kevin D.; Hynson, Nicole A.; Ivanova, Natalia; Karisto, Petteri; Kerdraon, Deirdre; Knorre, Anastasia; Krisai-Greilhüber, Irmgard; Kurhinen, Juri; Kuzmina, Masha; Lecomte, Nicolas; Lecomte, Erin; Nordén, Jenni; Nordén, Björn (Peer reviewed; Journal article, 2024)
      Novel methods for sampling and characterizing biodiversity hold great promise for re-evaluating patterns of life across the planet. The sampling of airborne spores with a cyclone sampler, and the sequencing of their DNA, ...

    • Handbook of field sampling for multi-taxon biodiversity studies in European forests 

      Burrascano, Sabina; Trentanovi, Giovanni; Paillet, Yoan; Heilmann-Clausen, Jacob; Giordani, Paolo; Bagella, Simonetta; Bravo-Oviedo, Andrés; Campagnaro, Thomas; Campanaro, Alessandro; Francesco, Chianucci; De Smedt, Pallieter; Itziar, García-Mijangos; Matošević, Dinka; Sitzia, Tommaso; Aszalós, Réka; Brazaitis, Gediminas; Andrea, Cutini; Ettore, D'Andrea; Doerfler, Inken; Hofmeisterr, Jeňýk; Hošeks, Jan; Janssen, Philippe; Rojas, Sebastian Kepfer; Korboulewsky, Nathalie; Kozák, Daniel; Lachat, Thibault; Lõhmus, Asko; Lopez, Rosana; Mårell, Anders; Matula, Radim; Mikoláš, Martin; Munzi, Silvana; Nordén, Björn; Pärtel, Meelis; Penner, Johannes; Runnel, Kadri; Schall, Peter; Svoboda, Miroslav; Tinya, Flóra; Ujházyová, Mariana; Vandekerkhove, Kris; Verheyen, Kris; Xystrakis, Fotios; Ódor, Péter (Peer reviewed; Journal article, 2021)
      Forests host most terrestrial biodiversity and their sustainable management is crucial to halt biodiversity loss. Although scientific evidence indicates that sustainable forest management (SFM) should be assessed by ...

    • Key to hysterioid fungi on bark and wood in Scandinavia 

      Nordén, Björn; Andreasen, Mathias (Peer reviewed; Journal article, 2021)
      The lack of useful determination keys is often a major obstacle for naming species of Ascomycota, especially for the amateur mycologist. One group of fungi in need of a key are species of Dothideomycetes with hysterioid ...

    • Multi-locus phylogenetic analysis of lophiostomatoid fungi motivates a broad concept of Lophiostoma and reveals nine new species 

      Andreasen, Mathias; Skrede, Inger; Jaklitsch, Walter; Voglmayr, Hermann; Nordén, Björn (Peer reviewed; Journal article, 2021)
      Recent studies on the fungal families Lophiostomataceae and Lophiotremataceae (Pleosporales) have provided varying phylogenetic and taxonomic results concerning constituent genera and species. By adding DNA sequences of ...

    • Overvåking av sjeldne og rødlistede lavpå gamle eiker – lærdommer fra etpilotstudium 

      Sverdrup-Thygeson, Anne; Evju, Marianne; Gough, Leonie; Bratli, Harald; Haugan, Reidar; Nordén, Björn (Journal article; Peer reviewed, 2015)

    • Recent forest on abandoned agricultural land in the boreonemoral zone – Biodiversity of plants and fungi in relation to historical and present tree cover 

      Nordén, Björn; Olsen, Siri Lie; Haug, Solveig; Rusch, Graciela (Peer reviewed; Journal article, 2021)
      Recent forests may be an asset for green infrastructure and ecological restoration, but studies are needed of the variation in forest biodiversity among sites, and possible reasons for observed patterns. In boreonemoral ...

    • Some interesting lichenized fungi from old Fraxinus excelsior and Ulmus glabra in Norway, including four new country records 

      Nordén, Björn; Jordal, John Bjarne (Peer reviewed; Journal article, 2016)
      A survey of lichenized and non-lichenized fungi, and bryophytes on old Ulmus glabra and Fraxinus excelsior trees in Norway was undertaken during 2012–2014. In total, 690 (400 elm, 290 ash) trees at 65 sites were surveyed ...

    • Stylonectria norvegica (Nectriaceae), a new species fromNorway 

      Lechat, Christian; Fournier, Jacques; Nordén, Björn (Peer reviewed; Journal article, 2015)
      Stylonectria norvegica sp. nov. is described from three collections on pyrenomycetous hosts on Quercus, Betula and Alnus in Norway. The fusarium-like asexual state was obtained in culture and the ITS1- 5.8S-ITS2 loci ...

    • A synthesis of multi-taxa management experiments to guide forest biodiversity conservation in Europe 

      Tinya, Flóra; Doerfler, Inken; de Groot, Maarten; Heilman-Clausen, Jacob; Kovács, Bence; Mårell, Anders; Nordén, Björn; Aszalós, Réka; Bässler, Claus; Brazaitis, Gediminas; Burrascano, Sabina; Camprodon, Jordi; Chudomelov, Marketa; Cizek, Lukas; D'Andrea, Ettore; Gossner, Martin; Halme, Panu; Hédl, Radim; Korboulewsky, Nathalie; Kouki, Jari; Kozel, Petr; Lõhmus, Asko; Lopez, Rosana; Máliš, František; Martín, Juan A.; Mattioli, Walter; Mundet, Roser; Müller, Jörg; Nicolas, Manuel; Oldén, Anna; Piqué, Miriam; Preiksa, Zydrunas; Ciuró, Joan Rovira; Remm, Liina; Schall, Peter; Sebek, Pavel; Seibold, Sebastian; Simoncic, Primoz; Ujhazy, Karol; Ujhazyova, Mariana; Vild, Ondrej; Vincenot, Lucie; Weisser, Wolfgang; Odor, Peter (Peer reviewed; Journal article, 2023)
      Most European forests are used for timber production. Given the limited extent of unmanaged (and especially primary) forests, it is essential to include commercial forests in the conservation of forest biodiversity. ...