• Antimicrobial resistance—Do we share more than companionship with our dogs? 

      Røken, Mari; Forfang, Kristin; Wasteson, Yngvild; Haaland, Anita Haug; Eiken, Hans Geir; Hagen, Snorre; Bjelland, Ane Mohn (Peer reviewed; Journal article, 2022-05-21)
      Aims To investigate and compare antimicrobial resistance genes (ARGs) in faeces from cohabiting dogs and owners. Methods and Results DNA from faecal samples from 35 dogs and 35 owners was screened for the presence of 34 ...
    • Comparison of grizzly bear hair-snag and scat sampling along roads to inform wildlife population monitoring 

      Phoebus, Isobel; Boulanger, John; Eiken, Hans Geir; Fløystad, Ida; Graham, Karen; Hagen, Snorre; Sorensen, Anja; Stenhouse, Gordon (Peer reviewed; Journal article, 2020-09-16)
      Wildlife managers conduct population inventories to monitor species, particularly those at-risk. Although costly and time consuming, grid-based DNA hair-snag sampling has been the standard protocol for grizzly bear inventories ...
    • DNA-overvåking av brunbjørn i Karasjok 2020 ved bruk av hårfeller 

      Fløystad, Ida; Aspholm, Paul Eric; Häkli, Katja; Anti, Per John Aslaksen; Eira, Per Anders; Eira, Ann Maret; Gaup, Johan Henrik; Pedersen, Nikolai; Søvik, Ingrid Helle; Hagen, Snorre; Eiken, Hans Geir (NIBIO Rapport;7(132) 2021, Research report, 2021)
      DNA-overvåking av brunbjørn i et totalt 650 km2 stort område i Karasjok kommune i Troms og Finnmark ble utført med hårfeller med luktstoff i 2 måneder fra juni til august i 2020. Overvåkingen ble utført i tre deler; et ...
    • DNA-overvåking av brunbjørn i Karasjok og indre Troms 2021 ved bruk av hårfeller FORFATTER( 

      Fløystad, Ida; Aspholm, Paul Eric; Anti, Per John Aslaksen; Eira, Ann Maret; Gaup, Mahtte Ailu Utsi; Eira, Aslak Ole; Markussen, Trond-Erik; Evanger, Geir-Arne; Bones, Tor-Einar; Strømseth, Torfinn; Martin, Christina; Sletten, Stig Ronald; Uthus, Gina; Søvik, Ingrid Helle; Hansen, Ane-Sofie B.; Rustad, Oda; Hagen, Snorre; Eiken, Hans Geir (NIBIO-rapport;8(41) 2022, Research report, 2022-03)
      Hår fra brunbjørn ble samlet inn i hårfeller med luktstoff i et 1075 km2 stort område i Karasjok kommune og i et 525 km2 stort område i indre Troms (Troms og Finnmark fylke) i løpet av 2 måneder fra juni til august i 2021. ...
    • DNA-overvåkning av brunbjørn i Karasjok 2019 ved bruk av hårfeller 

      Fløystad, Ida; Aspholm, Paul Eric; Aslaksen Anti, Per John; Eira, Per Anders; Eira, Ann Maret; Bakke, Beate Banken; Søvik, Inger; Rushfeldt, Beddari, Vilde; Hagen, Snorre; Eiken, Hans Geir (NIBIO Rapport;6(76) 2020, Research report, 2020-05)
      DNA-overvåkning av brunbjørn i et 400 km2 stort område nær Karasjok i Finnmark ble utført med hårfeller med luktstoff i 2 måneder fra juni til august i 2019. Vi brukte et 5 x 5 km rutesystem med 16 ruter med én hårfelle i ...
    • Female brown bears in Sør-Varanger, Norway: localities and mother-cub relationships analyzed by genetic methods 

      Kopatz, Alexander; Andreassen, Rune; Eiken, Hans Geir; Aarnes, Siv; Tobiassen, Camilla; Randa, Rolf; Wikan, Steinar; Hagen, Snorre (Bioforsk rapport;9(167) 2014, Research report, 2014-12-10)
      Knowledge on the number of female brown bears, especially reproducing females, is important for the wildlife management. One of the largest and densest populations of brown bears in Norway is located in Sør-Varanger, ...
    • Genetic analysis indicates spatial-dependent patterns of sex-biased dispersal in Eurasian lynx in Finland 

      Herrero, Annika; Klutsch, Cornelya; Holmala, Katja; Maduna, Simo; Kopatz, Alexander; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2021-02-19)
      Conservation and management of large carnivores requires knowledge of female and male dispersal. Such information is crucial to evaluate the population’s status and thus management actions. This knowledge is challenging ...
    • Genetic changes caused by restocking and hydroelectric dams in demographically bottlenecked brown trout in a transnational subarctic riverine system 

      Klutsch, Cornelya; Maduna, Simo; Polikarpova, Natalia; Forfang, Kristin; Aspholm, Paul Eric; Nyman, Tommi; Eiken, Hans Geir; Amundsen, Per-Arne; Hagen, Snorre (Journal article; Peer reviewed, 2019-04-29)
      Habitat discontinuity, anthropogenic disturbance, and overharvesting have led to population fragmentation and decline worldwide. Preservation of remaining natural genetic diversity is crucial to avoid continued genetic ...
    • Genetic evidence of female kin clusters in a continuous population of a solitary carnivore, the Eurasian lynx 

      Holmala, Katja; Herrero, Annika; Kopatz, Alexander; Schregel, Julia; Eiken, Hans Geir; Hagen, Snorre (Journal article; Peer reviewed, 2018)
      Large terrestrial carnivores can sometimes display strong family bonds affecting the spatial distribution of related individuals. We studied the spatial genetic relatedness and family structure of female Eurasian lynx, ...
    • Genetic substructure and admixture as important factors in linkage disequilibrium-based estimation of effective number of breeders in recovering wildlife populations 

      Kopatz, Alexander; Eiken, Hans Geir; Schregel, Julia; Aspi, Jouni; Kojola, Ilpo; Hagen, Snorre (Journal article; Peer reviewed, 2017)
      The number of effective breeders (Nb) and effective population size (Ne) are population parameters reflective of evolutionary potential, susceptibility to stochasticity, and viability. We have estimated these parameters ...
    • Genome- and transcriptome-derived microsatellite loci in lumpfish Cyclopterus lumpus: Molecular tools for aquaculture, conservation and fisheries management 

      Maduna, Simo; Vivian-Smith, Adam; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Klutsch, Cornelya; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2020-01-17)
      The lumpfish Cyclopterus lumpus is commercially exploited in numerous areas of its range in the North Atlantic Ocean, and is important in salmonid aquaculture as a biological agent for controlling sea lice. Despite the ...
    • Harvest is associated with the disruption of social and finescale genetic structure among matrilines of a solitary large carnivore 

      Frank, Shane; Pelletier, Fanie; Kopatz, Alexander; Bourret, Audrey; Garant, Dany; Swenson, Jon; Eiken, Hans Geir; Hagen, Snorre; Zedrosser, Andreas (Peer reviewed; Journal article, 2020-11-27)
      Harvest can disrupt wildlife populations by removing adults with naturally high survival. This can reshape sociospatial structure, genetic composition, fitness, and potentially affect evolution. Genetic tools can detect ...
    • Heritability of head size in a hunted large carnivore, the brown bear (Ursus arctos) 

      Rivrud, Inger Maren; Frank, Shane; Bischof, Richard; Mysterud, Atle; Steyaert, Sam; Hertel, Anne Gabriela; Hagen, Snorre; Eiken, Hans Geir; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2019)
      Wild animal populations experience selection pressures from both natural and anthropogenic sources. The availability of extensive pedigrees is increasing along with our ability to quantify the heritability and evolvability ...
    • High resistance to climatic variability in a dominant tundra shrub species 

      Gonzalez, Victoria; Moriana Armendariz, Mikel; Hagen, Snorre; Lindgård, Bente; Reiersen, Rigmor; Bråthen, Kari Anne (Journal article; Peer reviewed, 2019-06-05)
      Climate change is modifying temperature and precipitation regimes across all seasons in northern ecosystems. Summer temperatures are higher, growing seasons extend into spring and fall and snow cover conditions are more ...
    • Lack of population genetic structure of lumpfish along the Norwegian coast: A reappraisal based on EST-STRs analyses 

      Jónsdóttir, Ólöf Dóra Bartels; Gíslason, Davíð; Ólafsdóttir, Guðbjörg; Maduna, Simo; Hagen, Snorre; Reynolds, Patrick; Sveinsson, Sæmundur; Imsland, Albert (Peer reviewed; Journal article, 2022-04-13)
      Lumpfish is now the single most important cleaner fish species to date and there is an extensive lumpfish translocation along the Norwegian coast. A reliable baseline information about the population genetic structure of ...
    • Large-scale genetic admixture suggests high dispersal in an insect pest, the apple fruit moth 

      Elameen, Abdelhameed; Klutsch, Cornelya; Fløystad, Ida; Knudsen, Geir; Tasin, Marco; Hagen, Snorre; Eiken, Hans Geir (Peer reviewed; Journal article, 2020-08-12)
      Knowledge about population genetic structure and dispersal capabilities is important for the development of targeted management strategies for agricultural pest species. The apple fruit moth, Argyresthia conjugella ...
    • Mitogenomics of the suborder Cottoidei (Teleostei: Perciformes): Improved assemblies, mitogenome features, phylogeny, and ecological implications 

      Maduna, Simo; Vivian-Smith, Adam; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Klutsch, Cornelya; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2022-03-02)
      We determined the mitogenome of Cyclopterus lumpus using a hybrid sequencing approach, and another four closely related species in the Liparidae based on available next-generation sequence data. We found that the mitogenome ...
    • Monitoring of the Apple Fruit Moth: Detection of Genetic Variation and Structure Applying a Novel Multiplex Set of 19 STR Markers 

      Elameen, Abdelhameed; Eiken, Hans Geir; Fløystad, Ida; Knudsen, Geir; Hagen, Snorre (Journal article; Peer reviewed, 2018-04-08)
      The apple fruit moth Argyresthia conjugella (Lepidoptera, Yponomeutidae) is a seed predator of rowan (Sorbus aucuparia) and is distributed in Europe and Asia. In Fennoscandia (Finland, Norway and Sweden), rowan fruit ...
    • Monitoring of the Pasvik-Inari-Pechenga brown bear (Ursus arctos) population in 2019 using hair trap 

      Beddari, Benedicte Lissner; Ogurtsov, Sergey; Magga, Sari; Kangasniemi, Jaru; Fløystad, Ida; Søvik, Inger; Randa, Rolf; Ollila, Leif E.; Lindgren, Vetle; Bakke, Beate Banken; Beddari, Vilde; Polikarpova, Natalia; Ollila, Tuomo; Hagen, Snorre; Eiken, Hans Geir (NIBIO Rapport;6(61) 2020, Research report, 2020-04)
      Siden 2005 har populasjonen av grenseoverskridene brunbjørn (Ursus arctos) i Trilateral Park Pasvik-Inari-Pechenga (Norge-Finland-Russland) blitt overvåket ved å bruke genetiske analyser av hår og ekskrement-prøver samlet ...
    • Monitoring of the Pasvik-Inari-Pechenga brown bear population in 2007 and 2011 using hair-trapping 

      Kopatz, Alexander; Eiken, Hans Geir; Aspholm, Paul Eric; Tobiassen, Camilla; Bakke, Beate Banken; Schregel, Julia; Ollila, Tuomo; Makarova, Olga; Polikarpova, Natalia; Chizhov, Vladimir; Hagen, Snorre (Bioforsk rapport;6(148) 2011, Research report, 2011-12-22)
      The trans-border brown bear population of Pasvik-Inari-Pechenga (Norway-Finland-Russia) has been monitored using genetic analyses of feces collection since 2005. In addition in 2007, hair traps were systematically placed ...