• 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 ...
    • Conserving on the edge: genetic variation and structure in Northern populations of the endangered plant Dracocephalum ruyschiana L. (Lamiaceae) 

      Kyrkjeeide, Magni Olsen; Westergaard, Kristine Bakke; Kleven, Oddmund; Evju, Marianne; Endrestøl, Anders; Brandrud, Marie Kristine; Stabbetorp, Odd Egil (Peer reviewed; Journal article, 2020)
      Loss of biodiversity is accelerating, including the loss of genetic diversity. Conservation of small, isolated populations may be important, as they can provide valuable contributions to overall genetic variation and ...
    • Cryptococcus fagisuga Lindinger, 1936 (Hemiptera, Cryptococcidae) confirmed from Norway 

      Endrestøl, Anders; Gertsson, Carl-Axel (Peer reviewed; Journal article, 2021)
      The knowledge of the scale insects (Hemiptera, Coccomorpha) in Norway is very poor compared to our neighbouring countries. The latest checklist was compiled by Fjelddalen (1996), who lists and comments on the biology and ...
    • Designing a surveillance program for early detection of alien plants and insects in Norway 

      Sandercock, Brett; Davey, Marie Louise; Endrestøl, Anders; Blaalid, Rakel; Fossøy, Frode; Hegre, Hanne; Majaneva, Markus; Often, Anders; Åström, Jens; Jacobsen, Rannveig Margrete (Peer reviewed; Journal article, 2022)
      Naturalized species of alien plants and animals comprise < 3% of biodiversity recorded in Norway but have had major impacts on natural ecosystems through displacement of native species. Encroachment of alien species has ...
    • The firebug Pyrrhocoris apterus (Linnaeus, 1758) (Hemiptera, Heteroptera) new to the Norwegian fauna – with an explosive expansion in Northern Europe 

      Endrestøl, Anders; Roth, Steffen (Journal article, 2020)
      The Firebug Pyrrhocoris apterus (Linnaeus, 1758) (Hemiptera, Heteroptera) is presented new to the Norwegian fauna. Several hundred individuals were observed in a residential area in southeast Norway, centred around two ...
    • Fragmentation in calcareous grasslands: species specialization matters 

      Olsen, Siri Lie; Evju, Marianne; Endrestøl, Anders (Journal article; Peer reviewed, 2018)
      Habitat fragmentation resulting from anthropogenic land-use change may negatively affect both biodiversity and ecosystem structure and function. However, susceptibility to fragmentation varies between species and may be ...
    • Isolation and characterization of novel microsatellite loci in the genome of the dragonhead sap beetle Thymogethes norvegicus (Coleoptera: Nitidulidae) 

      Kleven, Oddmund; Endrestøl, Anders (Journal article; Peer reviewed, 2016)
      Here we describe 16 novel microsatellite loci in the genome of the dragonhead sap beetle Thymogethes norvegicus, which were identifi ed using a next-generation sequencing approach. In 40 dragonhead sap beetles from a ...
    • Prokelisia marginata (Van Duzee, 1897) (Hemiptera, Delphacidae) recorded for the first time in Northern Europe 

      Endrestøl, Anders; Almedal, Svein (Journal article, 2019)
      The Nearctic planthopper Prokelisia marginata (Van Duzee, 1897) (Hemiptera, Delphacidae) is native to the eastern coast of North America on its foodplant, the cordgrass Spartina alterniflora (Poaceae). Both the hostplant ...
    • SNP discovery in the northern dragonhead Dracocephalum ruyschiana 

      Kleven, Oddmund; Endrestøl, Anders; Evju, Marianne; Stabbetorp, Odd Egil; Westergaard, Kristine Bakke (Journal article; Peer reviewed, 2018)
      The northern dragonhead Dracocephalum ruyschiana is a plant species experiencing a dramatic population decline that has led to the species being listed on Red Lists for species in many European countries. Here we used ...
    • The genus Recilia Edwards, 1922 (Hemiptera, Cicadellidae) confirmed from Northern Europe 

      Endrestøl, Anders (Journal article; Peer reviewed, 2014)
      There have been some uncertainties concerning the presence of Recilia coronifer (Marshall, 1866) in Northern Europe. The species was reported from Denmark in 1992, but the whereabouts of the specimens have been uncertain. ...
    • Two introduced species of Typhlocybinae (Hemiptera, Cicadellidae) new to Norway 

      Endrestøl, Anders; Olsen, Kjell Magne; Gustad, Jørn R. (Peer reviewed; Journal article, 2016)
      This paper present two species of Typhlocybinae (Hemiptera, Cicadellidae) new to Norway, Zonocyba bifasciata (Boheman, 1852) and Zyginella pulchra Löw, 1885. Both species are reported from plant importers and from established ...