Browsing Naturhistorisk museum by Title

Now showing items 347-366 of 763

  • Insights into bear evolution from a Pleistocene polar bear genome 
    Lan, Tianying; Leppälä, Kalle; Tomlin, Crystal; Talbot, Sandra L; Sage, George K.; Farley, Sean; Shideler, Richard T.; Bachmann, Lutz; Wiig, Øystein; Albert, Victor A; Salojärvi, Jarkko; Mailund, Thomas; Drautz-Moses, Daniela I.; Herrera-Estrella, Luis; Lindqvist, Charlotte (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The polar bear (Ursus maritimus) has become a symbol of the threat to biodiversity from climate change. Understanding polar bear evolutionary history may provide insights into apex carnivore responses and prospects during ...
  • Integrating subsurface and outcrop data of the Middle Jurassic to Lower Cretaceous Agardhfjellet Formation in central Spitsbergen 
    Koevoets, Maayke Jacqueline; Hammer, Øyvind; Olaussen, Snorre; Senger, Kim; Smelror, Morten (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The Longyearbyen CO2 storage project drilling and coring campaign in central Spitsbergen provided new insights on the shale-dominated Middle Jurassic to Lower Cretaceous Agardhfjellet Formation, which is the onshore ...
  • Integrative taxonomy and systematics of Allodia Winnertz (Diptera, Mycetophilidae) 
    Magnussen, Trude (Doctoral thesis / Doktoravhandling, 2020)
    This thesis focuses on the fungus gnat genus Allodia in the dipteran family Mycetophilidae. Allodia has historically gone through several systematic changes, with additions and exclusions of taxa, and the diversity and ...
  • Integrative taxonomy reveals a new species, Nephroma orvoi, in the N. parile species complex (lichenized Ascomycota) 
    Timdal, Einar; Westberg, Martin; Haugan, Reidar; Hofton, Tom Hellik; Holien, Håkon; Speed, James David Mervyn; Tønsberg, Tor; Bendiksby, Mika (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Our knowledge of the diversity and distribution of many groups of lichens remains poor due to unclear species boundaries and challenging species identification. We have studied the medium sized to large foliose lichen ...
  • Integrative taxonomy reveals overlooked cryptic diversity in the conifer feeding Batrachedra pinicolella (Zeller, 1839) (Lepidoptera, Batrachedridae) 
    Aarvik, Leif; Huemer, Peter; Berggren, Kai; Lee, Kyung Min; Mutanen, Marko (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    During efforts to generate DNA barcodes for all European Lepidoptera, Batrachedra pinicolella (Zeller, 1839) was found to comprise two genetically distinct clusters. Morphological investigation and results from two nuclear ...
  • Interspecific gene flow shaped the evolution of the genus Canis. 
    Gopalakrishnan, S.; Sinding, Mikkel Holger Strander; Ramos-Madrigal, J.; Niemann, J.; Castruita, J.A.S.; Vieira, S.G.; Carøe, C.; Montero, M.M.; Kuderna, L.; Serres, A.; Gonzales, V.M.; Liu, H-H; Wang, G-D.; Marques-Bonett, T.; Mirarab, S.; Fernandes, C.; Gaubert, P.; Koepfli, K-P.; Budd, J.; Rueness, E.K.; Heide-Jørgensen, M.P.; Petersen, B.; Sicheritz-Ponten, T.; Bachmann, Lutz; Wiig, Øystein; Hansen, A.J.; Gilbert, M.T.P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The evolutionary history of the wolf-like canids of the genus Canis has been heavily debated, especially regarding the number of distinct species and their relationships at the population and species level [1, 2, 3, 4, 5, ...
  • Introgression between highly divergent fungal sister species 
    Kinneberg, Vilde Bruhn; Lü, Dabao Sun; Peris, David; Ravinet, Mark; Skrede, Inger (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract To understand how species evolve and adapt to changing environments, it is important to study gene flow and introgression due to their influence on speciation and radiation events. Here, we apply a novel ...
  • Invader at the edge — Genomic origins and physiological differences of round gobies across a steep urban salinity gradient 
    Green, Leon; Faust, Ellika; Hinchcliffe, James; Brijs, Jeroen; Holmes, Andrew; Englund Örn, Felix; Svensson, Ola; Roques, Jonathan A. C.; Leder, Erica Helen; Sandblom, Erik; Kvarnemo, Charlotta (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Species invasions are a global problem of increasing concern, especially in highly connected aquatic environments. Despite this, salinity conditions can pose physiological barriers to their spread, and understanding them ...
  • The invertebrate fauna of anthropogenic soils in the High-Arctic settlement of Barentsburg, Svalbard 
    Coulson, Stephen James; Fjellberg, Arne; Gwiazdowicz, Dariusz J.; Lebedeva, Natalia V.; Melekhina, Elena N.; Solhøy, Torstein; Erséus, Christer; Maraldo, Kristine; Miko, Ladislav; Schatz, Heinrich; Schmelz, Rüdiger M; Søli, Geir Einar Ellefsen; Stur, Elisabeth (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    The terrestrial environment of the High Arctic consists of a mosaic of habitat types. In addition to the natural habitat diversity, various human-influenced types may occur. For the resident invertebrate fauna, these ...
  • Is telomere length associated with mate choice in a songbird with a high rate of extrapair paternity? 
    Johnsen, Arild; Pauliny, Angela; Lifjeld, Jan Terje; Blomqvist, Donald (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Telomere length is related to aging in many eukaryotes and the rate of telomere attrition has been suggested to reflect individual genetic quality. Telomere length could thus have implications for mate choice. We investigated ...
  • Is the hyoid a constraint on innovation? A study in convergence driving feeding in fish-shaped marine tetrapods 
    Delsett, Lene Liebe; Pyenson, Nicholas; Miedema, Feiko; Hammer, Øyvind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract The hyoid apparatus is essential for underwater feeding in marine tetrapods, but it is unclear whether this complex has evolved as convergently as other traits, such as dentition or locomotion. Here we compare the ...
  • ITS as an environmental DNA barcode for fungi: an in silico approach reveals potential PCR biases 
    Bellemain, Eva; Carlsen, Tor; Brochmann, Christian; Coissac, Eric; Taberlet, Pierre; Kauserud, Håvard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)
    Background During the last 15 years the internal transcribed spacer (ITS) of nuclear DNA has been used as a target for analyzing fungal diversity in environmental samples, and has recently been selected as ...
  • Kartlegging av NiN naturtyper i målestokk 1:5000 rundt flux-tårnet og på Hansbunuten, Finse (Vestland) 
    Bryn, Anders; Horvath, Peter (Research report / Forskningsrapport, 2020)
    Denne rapporten beskriver kortfattet hvordan to naturtypekart ved Finse ble lagd. Resultatene er lagt fram i form av kart og tabeller, samt tekst som beskriver naturtypenes økologi. Arealdekkende naturtypekart etter NiN ...
  • Karyon: a computational framework for the diagnosis of hybrids, aneuploids, and other nonstandard architectures in genome assemblies 
    Naranjo Ortiz, Miguel Angel; Molina, Manu; Fuentes, Diego; Mixão, Verónica; Gabaldón, Toni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Recent technological developments have made genome sequencing and assembly highly accessible and widely used. However, the presence in sequenced organisms of certain genomic features such as high heterozygosity, polyploidy, ...
  • Land cover classification of treeline ecotones along a 1100 km latitudinal transect using spectral- and three-dimensional information from UAV-based aerial imagery 
    Mienna, Ida Marielle; Klanderud, Kari; Ørka, Hans Ole; Bryn, Anders; Bollandsås, Ole Martin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The alpine treeline ecotone is expected to move upwards in elevation with global warming. Thus, mapping treeline ecotones is crucial in monitoring potential changes. Previous remote sensing studies have focused on the usage ...
  • Lanthanide and yttrium substitution in natural fluorite 
    Horsburgh, Nicola J.; Finch, Adrian A.; Friis, Henrik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Fluorite is one of the most common minerals in the crust and is of widespread economic importance. It shows strong UV-excited luminescence, variously attributed to defects within the fluorite structure and lanthanide ...
  • Large-scale fungal strain sequencing unravels the molecular diversity in mating loci maintained by long-term balancing selection 
    Peris, David; Lü, Dabao Sun; Kinneberg, Vilde Bruhn; Methlie, Ine-Susanne Hopland; Dahl, Malin Stapnes; Y. James, Timothy; Kauserud, Håvard; Skrede, Inger (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Balancing selection, an evolutionary force that retains genetic diversity, has been detected in multiple genes and organisms, such as the sexual mating loci in fungi. However, to quantify the strength of balancing selection ...
  • Large-sized ichthyosaurs from the Lower Saurian niveau of the Vikinghøgda Formation (Early Triassic), Marmierfjellet, Spitsbergen 
    Engelschiøn, Victoria Sjøholt; Delsett, Lene Liebe; Roberts, Aubrey Jane; Hurum, Jørn Harald (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Humeri of Pessopteryx nisseri and vertebrae referred to Cymbospondylus sp. are described from the Lower Saurian niveau at Marmierfjellet, Spitsbergen. This is the most well-preserved Cymbospondylus material described from ...
  • Larger offspring associated with lower temperatures across species of Microporella, a widespread colonial invertebrate 
    Di Martino, Emanuela; Liow, Lee Hsiang (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Among life history traits, offspring size has one of the most direct impacts on fitness, influencing growth, recruitment and survival of the individual, therefore affecting population, and ultimately macroevolutionary ...
  • layeranalyzer: Inferring correlative and causal connections from time series data in R 
    Reitan, Trond; Liow, Lee Hsiang (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    1. Distinguishing correlative and causal connections among time series is an important challenge in evolutionary biology, ecology, macroevolution and palaeobiology. 2. Here, we present layeranalyzer, an r package that ...