Blar i Institutt for naturhistorie på tittel

Viser treff 217-236 av 1214

    • Demographic reconstruction from ancient DNA supports rapid extinction of the Great Auk 

      Thomas, Jessica E; Carvalho, Gary R.; James, Haile; Rawlence, Nicolas J.; Martin, Michael David; Ho, Simon Y.W.; Sigfússon, Arnór; Jósefsson, Vigfús A.; Frederiksen, Morten; Linnebjerg, Jannie F.; Castruita, Jose A. Samaniego; Niemann, Jonas; Sinding, Mikkel-Holger S.; Sandoval-Velasco, Marcela; Soares, André E.R.; Lacy, Robert; Barilaro, Christina; Best, Julia; Brandis, Dirk; Cavallo, Chiara; Elorza, Mikelo; Garrett, Kimball L; Groot, Maaike; Johansson, Friederike; Lifjeld, Jan Terje; Nilson, Göran; Serjeanston, Dale; Sweet, Paul; Fuller, Errol; Hufthammer, Anne Karin; Meldgaard, Morten; Fjeldså, Jon; Shapiro, Beth; Hofreiter, Michael; Gilbert, Marcus Thomas Pius; Knapp, Michael (Journal article; Peer reviewed, 2019)
      The great auk was once abundant and distributed across the North Atlantic. It is now extinct, having been heavily exploited for its eggs, meat, and feathers. We investigated the impact of human hunting on its demise by ...

    • Demographic responses to climate variation depend on spatial- and life history-differentiation at multiple scales 

      Tye, Matthew; Dahlgren, Johan P.; Øien, Dag-Inge; Moen, Asbjørn; Sletvold, Nina (Journal article; Peer reviewed, 2018)
      Long-term demographic data are needed for detailed viability analyses of populations threatened by climate change, but the infeasibility of obtaining such data makes it urgent to assess whether demographic responses to ...

    • Dense sampling of bird diversity increases power of comparative genomics 

      Feng, Shaohong; Stiller, Josefin; Deng, Yuan; Armstrong, Joel; Fang, Qi; Reeve, Andrew Hart; Xie, Duo; Chen, Guangji; Guo, Chunxue; Faircloth, Brant C.; Petersen, Bent; Wang, Zongji; Zhou, Qi; Diekhans, Mark; Chen, Wanjun; Andreu-Sánchez, Sergio; Margaryan, Ashot; Howard, Jason Travis; Parent, Carole; Pacheco, George; Sinding, Mikkel-Holger S.; Puetz, Lara; Cavill, Emily; Gilbert, Marcus Thomas Pius (Peer reviewed; Journal article, 2020)
      Whole-genome sequencing projects are increasingly populating the tree of life and characterizing biodiversity1,2,3,4. Sparse taxon sampling has previously been proposed to confound phylogenetic inference5, and captures ...

    • Describing the hidden species diversity of Chaetozone (Annelida, Cirratulidae) in the Norwegian Sea using morphological and molecular diagnostics 

      Grosse, Maël Ariel; Capa, Maria; Bakken, Torkild (Journal article; Peer reviewed, 2021)
      Using molecular markers and species delimitation analyses, a high diversity of bi-tentaculate Cirratulidae was discovered from the North-East Atlantic. Five new species are described: Chaetozone pseudosetosa sp. nov., ...

    • Description of polymorphisms at tissue enzyme loci in East Atlantic haddock (Melamogrammus aeglefinus L.) : tissue manifestation, electrophoretic conditions and estimates of basic polulation genetic parameters 

      Forthun, Jo; Mork, Jarle (Journal article, 1997)

    • Developing common protocols to measure tundra herbivory across spatial scales 

      Barrio, Isabel C.; Ehrich, Dorothee; Soininen, Eeva M; Ravolainen, Virve; Bueno, C. G.; Gilg, Olivier; Koltz, Amanda; Speed, James David Mervyn; Hik, David S.; Mörsdorf, M.; Alatalo, Juha M.; Angerbjørn, A.; Bêty, Joël; Bollache, L.; Boulanger-Lapointe, N.; Brown, G. S.; Eischeid, Isabell; Giroux, M. A.; Hajek, T.; Hansen, Brage Bremset; Hofhius, S. P.; Lamarre, J.-F.; Lang, J.; Latty, C.; Lecomte, N.; Macek, P.; McKinnon, L.; Myers-Smith, I. H.; Pedersen, Åshild Ønvik; Prevey, J. S.; Roth, J. D.; Saalfeld, S. T.; Schmidt, N. M.; Smith, P.; Sokolov, A.; Sokolova, N.; Stolz, C.; van Bemmelen, R.; Varpe, Øystein; Woodard, P. F.; Jonsdottir, I. S. (Peer reviewed; Journal article, 2021)
      Understanding and predicting large-scale ecological responses to global environmental change requires comparative studies across geographic scales with coordinated efforts and standardized methodologies. We designed, ...

    • Development of a risk assessment for sea trout in coastal areas exploited for aquaculture 

      Finstad, Bengt; Sandvik, Anne Dagrun; Ugedal, Ola; Vollset, Knut; Karlsen, Ørjan; Davidsen, Jan Grimsrud; Sægrov, Harald; Lennox, Robert J. (Peer reviewed; Journal article, 2021)
      ABSTRACT: The regulation of aquaculture production in Norway considers the potential impact of salmon lice on wild fish. However, most attention has been focused on impacts on wild Atlantic salmon, despite the fact that ...

    • Developmental studies provide new insights into the evolution of sense organs in Sabellariidae (Annelida) 

      Helm, Conrad; Bok, Michael J; Hutchings, Pat; Kupriyanova, Elena; Capa, Maria (Journal article; Peer reviewed, 2018)
      Background Sabellarids, also known as honeycomb or sandcastle worms, when building their tubes, produce chemical signals (free fatty acids) that are responsible for larval settlement and the formation of three-dimensional ...

    • Diabetic cats have decreased gut microbial diversity and a lack of butyrate producing bacteria 

      Kieler, Ida Nordang; Osto, Melania; Hugentobler, Leoni; Puetz, Lara; Gilbert, Marcus Thomas Pius; Hansen, Torben; Pedersen, Oluf; Reusch, Claudia E.; Zini, Eric; Lutz, Thomas A.; Bjørnvad, Charlotte Reinhard (Peer reviewed; Journal article, 2019)
      Obesity and inactivity are major risk factors of feline diabetes mellitus (FDM) and human type II diabetes mellitus (T2DM). In recent years, changes in the gut microbiota have been suggested as a contributing factor to ...

    • Diel rythms of Triturus vulgaris (L.) and T. cristatus (Laurenti) (Amphibia) in Central Norway 

      Dolmen, Dag (Gunneria, 0332-8554; 42, Research report, 1983)

    • Differential expression profiling of heat stressed tardigrades reveals major shift in the transcriptome 

      Neves, Ricardo A. Cardoso; Møbjerg, Ask; Kodama, Miyako; Ramos-Madrigal, Jazmín; Gilbert, Marcus Thomas Pius; Møbjerg, Nadja (Peer reviewed; Journal article, 2022)
      Tardigrades are renowned for their extreme stress tolerance, which includes the ability to endure complete desiccation, high levels of radiation and very low sub-zero temperatures. Nevertheless, tardigrades appear to be ...

    • Differential patterns of floristic phylogenetic diversity across a post-glacial landscape 

      Mienna, Ida M.; Speed, James David Mervyn; Bendiksby, Mika; Thornhill, Andrew H.; Mishler, Brent D; Martin, Michael David (Journal article; Peer reviewed, 2019)
      Aim: In this study, we explored spatial patterns of phylogenetic diversity (PD) and end-emism in the flora of Norway and tested hypothesized post-glacial environmental drivers of PD, including temperature, precipitation, ...

    • Discovery of a silicate rock-boring organism and macrobioerosion in fresh water 

      Bolotov, Ivan N.; Aksenova, Olga V.; Bakken, Torkild; Glasby, Christopher J.; Gofarov, Mikhail Yu.; Kondakov, Alexander V.; Konopleva, Ekaterina S.; Lopes-Lima, Manuel; Lyubas, Artyom A.; Wang, Yu; Bychkov, Andrey Yu.; Sokolova, Agniya M.; Tanmuangpak, Kitti; Tumpeesuwan, Sakboworn; Vikhrev, Ilya V.; Shyu, J. Bruce H.; Win, Than; Pokrovsky, Oleg S. (Journal article; Peer reviewed, 2018)
      Macrobioerosion is a common process in marine ecosystems. Many types of rock-boring organisms break down hard substrates, particularly carbonate rocks and calcareous structures such as dead corals and shells. In paleontology, ...

    • Disentangling the identity of Lebertia porosa Thor, 1900 using integrative taxonomy (Acari: Hydrachnidia) 

      Tyukosova, Valentina; Gerecke, Reinhard; Stur, Elisabeth; Ekrem, Torbjørn (Journal article; Peer reviewed, 2022)
      Initial analyses of DNA barcode data from Norwegian populations attributed to the water mite Lebertia porosa Thor, 1900 revealed large genetic divergence and potentially cryptic species level diversity. We used one ...

    • Distribution, ecology and biomonitoring studies of epiphytic lichens on conifers 

      Bruteig, Inga E. (Gunneria, 0332-8554; 68, Research report, 1994)
      This study presents the results of investigations of epiphytic lichens on conifers, mainly with a biomonitoring approach. The concentrations of nitrogen and sulphur measured in Hypogynmia physodes at 179 sites on a national ...

    • Diverse Sphagnum mosses support rich moss mite communities (Acari, Oribatida) in mires of Western Norway 

      Seniczak, Anna Beata; Seniczak, Stanisław; Iturrondobeitia, J. Carlos; Solhøy, Torstein; Flatberg, Kjell Ivar (Peer reviewed; Journal article, 2019)
      A study of oribatid mites was carried out in six mires located in western, oceanic parts of Norway. Twenty Sphagnum species of five subgenera were collected from microhabitats representing trophic state and wetness gradients. ...

    • Diversity of Norwegian sea slugs (Nudibranchia): new species to Norwegian coastal waters and new data on distribution of rare species 

      Evertsen, Jussi; Bakken, Torkild (Journal article; Peer reviewed, 2013)
      A total of 5 nudibranch species are reported from the Norwegian coast for the first time (Doridoxa ingolfiana, Goniodoris castanea, Onchidoris sparsa, Eubranchus rupium and Proctonotus mucroniferus). In addition 10 species ...

    • Diversity, habitat endemicity and trophic ecology of the fauna of Loki’s Castle vent field on the Arctic Mid-Ocean Ridge 

      Eilertsen, Mari Heggernes; Kongsrud, Jon Anders; Tandberg, Anne Helene S.; Alvestad, Tom; Budaeva, Nataliya; Martell, Luis; Ramalho, Sofia P.; Falkenhaug, Tone; Huys, Rony; Oug, Eivind; Bakken, Torkild; Høisæter, Tore; Rauch, Cessa; Carvalho, Francisca Maria Correia de; Savchenko, Alexandra; Ulvatn, Tone; Kongshavn, Katrine; Berntsen, Cassandra Mari; Olsen, Bernt Rydland; Pedersen, Rolf B. (Journal article; Peer reviewed, 2024)
      Loki’s Castle Vent Field (LCVF, 2300 m) was discovered in 2008 and represents the first black-smoker vent field discovered on the Arctic Mid-Ocean Ridge (AMOR). However, a comprehensive faunal inventory of the LCVF has not ...

    • Dividalen - uberørt natur eller eldgammelt kulturlandskap? 

      Sjøgren, Per Johan E; Storm, Dikka; Kirchhefer, Andreas; Sommerseth, Ingrid; Karlsen, Stein Rune; Elvebakk, Arve (Chapter, 2015)

    • DNA barcode data reveal biogeographic trends in Arctic non-biting midges 

      Ekrem, Torbjørn; Stur, Elisabeth; Orton, Matthew J.; Adamowicz, Sarah J. (Journal article; Peer reviewed, 2018)
      Chironomid flies (non-biting midges) are among the most abundant and diverse animals in Arctic regions, but detailed analyses of species distributions and biogeographical patterns are hampered by challenging taxonomy and ...