Blar i NINA Brage på forfatter "Ytrehus, Bjørnar"

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    • 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 ...

    • Antimicrobial resistance in wildlife potential for dissemination. Opinion of the Panel on Microbial Ecology of the Norwegian Scientific Committee for Food and Environment 

      Nielsen, Kaare Magne; Gjøen, Tor; Asare, Nana Yaa Ohene; Lunestad, Bjørn Tore; Ytrehus, Bjørnar; Yazdankhah, Siamak Pour; Godfroid, Jacques; Jelmert, Anders; Klein, Joern; Okoli, Arinze Stanley; Tronsmo, Arne (VKM report;, Research report, 2018)

    • Defining animal welfare standards in hunting: body mass determines thresholds for incapacitation time and flight distance 

      Stokke, Sigbjørn; Arnemo, Jon M.; Brainerd, Scott Michael; Söderberg, Arne; Kraabøl, Morten; Ytrehus, Bjørnar (Journal article; Peer reviewed, 2018)

    • Effects of free-range and confined housing on joint health in a herd of fattening pigs 

      Etterlin, Pernille Engelsen; Ytrehus, Bjørnar; Lundeheim, Nils; Heldmer, Eva; Österberg, Julia; Ekman, Stina (Peer reviewed; Journal article, 2014)
      Background: Free-range housing, in which pigs have access to both indoor and outdoor areas, is mandatory in organic pig production in Europe, but little is known about the effects of this housing on joint health in pigs. ...

    • First case of chronic wasting disease in Europe in a Norwegian free‑ranging reindeer 

      Benestad, Sylvie Lafond; Mitchell, Gordon; Simmons, Marion M; Ytrehus, Bjørnar; Vikøren, Turid (Journal article; Peer reviewed, 2016)
      Chronic wasting disease (CWD) is a fatal contagious prion disease in cervids that is enzootic in some areas in North America. The disease has been found in deer, elk and moose in the USA and Canada, and in South Korea ...

    • First case of chronic wasting disease in Europe in a Norwegian free‑ranging reindeer 

      Benestad, Sylvie Lafond; Mitchell, Gordon; Simmons, Marion M; Ytrehus, Bjørnar; Vikøren, Turid (Journal article; Peer reviewed, 2016)
      Chronic wasting disease (CWD) is a fatal contagious prion disease in cervids that is enzootic in some areas in North America. The disease has been found in deer, elk and moose in the USA and Canada, and in South Korea ...

    • Første påvisning av den patogene soppen Batrachochytrium dendrobatidis (Bd) i Norge. Bruk av miljø-DNA for påvisning av fremmede arter 

      Taugbøl, Annette; Dervo, Børre K.; Fossøy, Frode; Bærum, Kim Magnus; Sivertsgård, Rolf; Brandsegg, Hege; Miller, Andrea; Ytrehus, Bjørnar (NINA Rapport;1399, Report, 2017)
      Taugbøl, A., Dervo, B.K., Bærum, K.M., Brandsegg, H., Sivertsgård, R., Ytrehus, B. Miller, A. Fossøy, F. 2017. Første påvisning av den patogene soppen Batrachochytrium dendrobatidis (Bd) i Norge - Bruk av miljø-DNA for ...

    • Kartlegging av skrantesjuke (Chronic Wasting Disease - CWD) i 2016 og 2017 

      Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Mysterud, Atle; Viljugrein, Hildegunn; Solberg, Erling J.; Strand, Olav; Ytrehus, Bjørnar; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Næss, Camilla; Haavardstun, Tom; Veiberg, Vebjørn; Heim, Morten; Rudningen, Kåre (NINA Rapport;1522, Research report, 2018)
      Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Mysterud, A., Viljugrein, H., Solberg, E.J., Ytrehus, B., Strand, O., Vikøren, T., Madslien, K., Tarpai, A., Næss, C., Haavardstun, T., Veiberg, V., Heim, M., Rudningen, ...

    • Kartlegging og overvåking av skrantesjuke (Chronic Wasting Disease - CWD) 2016-2018 

      Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Viljgrein, Hildegunn; Solberg, Erling J.; Ytrehus, Bjørnar; Andersen, Roy; Strand, Olav; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Fremstad, Jørn; Veiberg, Vebjørn; Heim, Morten; Mysterud, Atle (NINA Rapport;1711, Research report, 2019)

    • Kartlegging og overvåking av skrantesjuke (Chronic Wasting Disease - CWD) 2016-2019 

      Rolandsen, Christer M.; Våge, Jørn; Hopp, Petter; Benestad, Sylvie L.; Viljugrein, Hildegunn; Solberg, Erling J.; Ytrehus, Bjørnar; Andersen, Roy; Strand, Olav; Vikøren, Turid; Madslien, Knut; Tarpai, Attila; Fremstad, Jørn; Veiberg, Vebjørn; Heim, Morten; Holmstrøm, Frode; Mysterud, Atle (NINA Rapport;1818, Research report, 2020)
      Rolandsen, C.M., Våge, J., Hopp, P., Benestad, S.L., Viljugrein, H., Solberg, E.J., Ytrehus, B., Andersen, R., Strand, O., Vikøren, T., Madslien, K., Tarpai, A., Fremstad, J., Veiberg, V., Heim, M., Holmstrøm, F., Mysterud, ...

    • Kunnskapsstatus og kunnskapsbehov for forvaltning av rovvilt i Norge 

      Linnell, John D. C.; Tveraa, Torkild (red.); Hansen, Inger; Andrén, Henrik; Persson, Jens; Sand, Håkan; Wikenros, Camilla; Zimmermann, Barbara; Odden, John; Stien, Audun; Ytrehus, Bjørnar; Kleven, Oddmund; Brøseth, Henrik; Kindberg, Jonas; Mattisson, Jenny; Solberg, Erling J.; Nilsen, Erlend B.; Nygård, Torgeir; Jacobsen, Karl Otto (NINA Rapport;1195, Research report, 2015-12-17)
      Miljødirektoratet har bestilt denne rapporten for å identifisere kunnskapshull vedrørende rovvilt (gaupe, brunbjørn, ulv, jerv og kongeørn) i Skandinavia, med særlig fokus på situasjonen i Norge. Over 20 forskere fra ...

    • Louping-ill virus serosurvey of willow ptarmigan (Lagopus Lagopus Lagopus) in Norway 

      Ytrehus, Bjørnar; Rocchi, Mara; Brandsegg, Hege; Turnbull, Dylan; Miller, Andrea L.; Pedersen, Hans Christian; Kålås, John Atle; Nilsen, Erlend Birkeland (Peer reviewed; Journal article, 2021)
      In Norway, the Willow Ptarmigan (Lagopus lagopus lagopus) is experiencing population declines and is nationally Red Listed as Near Threatened. Although disease has not generally been regarded as an important factor behind ...

    • Miljøkvalitetsnorm for villrein. Forslag fra en ekspertgruppe 

      Kjørstad, Morten; Bøthun, Siri Wølneberg; Gundersen, Vegard; Holand, Øystein; Madslien, Knut; Mysterud, Atle; Myren, Ingrid Nerhoel; Punsvik, Tor; Røed, Knut H.; Strand, Olav; Tveraa, Torkild; Tømmervik, Hans; Ytrehus, Bjørnar (NINA Rapport;1400, Research report, 2017)
      Kjørstad, M., Bøthun, S. W., Gundersen, V., Holand, Ø., Madslien, K., Mysterud, A., Myren, I. N., Punsvik, T., Røed, K. H., Strand, O., Tveraa, T., Tømmervik, H., Ytrehus, B. & Veiberg, V. (red.). 2017. Miljøkvalitetsnorm ...

    • Muskox status, recent variation, and uncertain future 

      Cuyler, Christine; Rowell, Janice; Adamczewski, Jan; Anderson, Morgan; Blake, John; Bretten, Tord; Brodeur, Vincent; Campbell, Mitch; Checkley, Sylvia L.; Cluff, H. Dean; Côté, Steeve D.; Davison, Tracy; Dumond, Mathieu; Ford, Barrie; Gruzdev, Alexander; Gunn, Anne; Jones, Patrick; Kutz, Susan; Leclerc, Lisa-Marie; Mallory, Conor; Mavrot, Fabien; Mosbacher, Jesper Bruun; Okhlop, Innokentiy Mikhailovich; Reynolds, Patricia; Schmidt, Niels Martin; Sipko, Taras; Suitor, Mike; Tomaselli, Matilde; Ytrehus, Bjørnar (Journal article; Peer reviewed, 2019)
      Muskoxen (Ovibos moschatus) are an integral component of Arctic biodiversity. Given low genetic diversity, their ability to respond to future and rapid Arctic change is unknown, although paleontological history demonstrates ...

    • Osteochondrosis, but not lameness, is more frequent among free-range pigs than confined herd-mates 

      Etterlin, Pernille Engelsen; Morrison, David A.; Österberg, Julia; Ytrehus, Bjørnar; Heldmer, Eva; Ekman, Stina (Peer reviewed; Journal article, 2015)
      Organic pig production is expanding and amongst the objectives of organic farming are enhancing animal health and welfare. However, some studies have reported a higher prevalence of lameness and joint condemnation at ...

    • Phenology of deer ked (Lipoptena cervi) host-seeking flight activity and its relationship with prevailing autumn weather 

      Mysterud, Atle; Madslien, Knut; Herland, Anders; Viljugrein, Hildegunn; Ytrehus, Bjørnar (Peer reviewed; Journal article, 2016)
      Background: The deer ked (Lipoptena cervi) is an ectoparasite on cervids that has invaded large parts of Norway, Sweden and Finland during recent decades. During their host-seeking flight activity, the adult deer keds ...

    • Resurrection and redescription of Varestrongylus alces (Nematoda; Protostrongylidae), a lungworm of the Eurasian moose (Alces alces), with report on associated pathology 

      Verocai, Guilherme G.; Hoberg, Eric P.; Vikøren, Turid; Handeland, Kjell; Ytrehus, Bjørnar; Rezansoff, Andrew M.; Davidson, Rebecca K.; Gilleard, John S.; Kutz, Susan J. (Peer reviewed; Journal article, 2014)
      Varestrongylus alces, a lungworm in Eurasian moose from Europe has been considered a junior synonym of Varestrongylus capreoli, in European roe deer, due to a poorly detailed morphological description and the absence of ...

    • Seabird beachcast events associated with bycatch in the Norwegian purse seine fishery 

      Christensen-Dalsgaard, Signe; Ytrehus, Bjørnar; Langset, Magdalene; Wiig, Jørgen Ree; Bærum, Kim Magnus (Peer reviewed; Journal article, 2022)
      Beachcast events, where a large number of seabird carcasses drift ashore, occur with irregular intervals. These events are due to specific situations where mass mortality of seabirds have occurred. Disentangling the cause ...

    • Thiamine deficiency and seabirds in Norway. A pilot study 

      Moe, Børge; Hanssen, Sveinn Are; Ytrehus, Bjørnar; Balk, Lennart; Chastel, Olivier; Christensen-Dalsgaard, Signe; Gustavsson, Hanna; Langset, Magdalene (NINA Rapport;1720, Research report, 2020)
      Moe, B., Hanssen, S. A., Ytrehus, B., Balk, L., Chastel, O., Christensen-Dalsgaard, S., Gustavsson, H. & Langset, M. 2020.Thiamine deficiency and seabirds in Norway. A pilot study. NINA Report 1720. Norwegian Institute for ...