Browsing Naturhistorisk museum by Title

Now showing items 132-151 of 266

  • 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 ...
  • Lecidea toensbergii, the first described sorediate species in Lecidea sensu stricto 
    Haugan, Reidar; Timdal, Einar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    A molecular phylogenetic analysis based on the DNA barcode marker (nrITS) of 12 specimens of Lecidea leucothallina revealed three monophyletic clades, two apotheciate and one sorediate. The sorediate clade is described as ...
  • Ledra aurita (Linnaeus, 1758) (Hem., Cicadellidae) rediscovered in Norway 
    Hansen, Lars Ove; Fjellstad, Bjørn, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 1998)
    The remarkable leafhopper Ledra aurita (Linnaeus, 1758) has been rediscovered in Norway. Three specimens were captured at light at Ø, Hvaler: Asmaløy (EIS 12) in July-Aug. 1995. An unpublished record from AK, Frogn: Drøbak ...
  • Linking geology and microbiology: Inactive pockmarks affect sediment microbial community structure 
    Haverkamp, Thomas Hendricus Augustus; Hammer, Øyvind; Jakobsen, Kjetill Sigurd (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Pockmarks are geological features that are found on the bottom of lakes and oceans all over the globe. Some are active, seeping oil or methane, while others are inactive. Active pockmarks are well studied since they harbor ...
  • Long-distance plant dispersal to North Atlantic islands: colonization routes and founder effect 
    Alsos, Inger Greve; Ehrich, Dorothee; Eidesen, Pernille Bronken; Solstad, Heidi Merethe; Westergaard, Kristine Bakke; Schonswetter, Peter; Tribsch, Andreas; Birkeland, Siri; Elven, Reidar; Brochmann, Christian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Long-distance dispersal (LDD) processes influence the founder effect on islands.We use genetic data for 25 Atlantic species and similarities among regional floras to analyse colonization, and test whether the genetic founder ...
  • Making the case for a formal Anthropocene Epoch: An analysis of ongoing critiques 
    Zalasiewicz, Jan; Waters, Colin N.; Wolfe, Alexander P.; Barnosky, Anthony D.; Cearreta, Alejandro; Edgeworth, Matt; Ellis, Erle C.; Fairchild, Ian J.; Gradstein, Felix M; Grinevald, Jacques; Haff, Peter K.; Head, Martin J; do Sul, Juliana A. Ivar; Jeandel, Catherine; Leinfelder, Reinhold; McNeill, John R.; Oreskes, Naomi; Poirier, Clement; Revkin, Andrew; Richter, Daniel DeB.; Steffen, Will; Summerhayes, Colin; Syvitski, James P.; Vidas, Davor; Wagreich, Michael; Wing, Scott L.; Williams, Mark (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    A range of published arguments against formalizing the Anthropocene as a geological time unit have variously suggested that it is a misleading term of non-stratigraphic origin and usage, is based on insignificant temporal ...
  • Mapping of marine benthic invertebrates in the Oslofjord and the Skagerrak: sampling data of museum collections from 1950–1955 and from recent investigations 
    Oug, Eivind; Christiansen, Marit Ellen; Dobbe, Kristine; Rønning, Ann-Helen; Bakken, Torkild; Kongsrud, Jon Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Data from large sampling programmes for the mapping of marine invertebrates in the Oslofjord, Norway, and the Skagerrak, spanning more than six decades, are compiled and digitized to provide easy access in modern data ...
  • Marine connectivity dynamics: clarifying cosmopolitan distributions of marine interstitial invertebrates and the meiofauna paradox 
    Cerca De Oliveira, Josè; Purschke, Günter; Struck, Torsten H (Journal article / Tidsskriftartikkel / SubmittedVersion, 2018)
    Many interstitial species were first described as widely distributed, often cosmopolitan or amphi-oceanic, contrasting with descriptions of a sedentary life style and the general absence of pelagic dispersal stages. These ...
  • Medicinal and aromatic plant cultivation in the Swat valley, north-western Pakistan, for economic development and biodiversity conservation 
    Sher, Hassan; Barkworth, Mary E.; de Boer, Hugo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    Most people in the Swat valley of northwest Pakistan practice subsistence farming, supplementing their income by collecting and selling wild harvested plants for use in herbal medicine. Previous work showed that the ...
  • Meeting Report: GBIF hackathon-workshop on Darwin Core and sample data (22-24 May 2013) 
    Wieczorek, John; Bánki, Olaf; Blum, Stan; Deck, John; Döring, Markus; Dröge, Gabriele; Endresen, Dag Terje Filip; Goldstein, Philip; Leary, Patrick; Krishtalka, Leonard; Ó Tuama, Éamonn; Robbins, Robert J.; Robertson, Tim; Yilmaz, Pelin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    The workshop-hackathon was convened by the Global Biodiversity Information Facility (GBIF) at its secretariat in Copenhagen over 22-24 May 2013 with additional support from several projects (RCN4GSC, EAGER, VertNet, BiSciCol, ...
  • Mesozoic marine reptiles from Spitsbergen and their ecosystems 
    Delsett, Lene Liebe; Druckenmiller, Patrick Scott; Hammer, Øyvind; Hryniewicz, Krzysztof; Knutsen, Espen Madsen; Koevoets, Maayke Jacqueline; Nakrem, Hans Arne; Roberts, Aubrey Jane; Hurum, Jørn Harald (Journal article / Tidsskriftartikkel / SubmittedVersion, 2019)
    In the Mesozoic seas, the apex predators were reptiles. From the Arctic archipelago of Svalbard, the Spitsbergen Mesozoic Research Group has excavated numerous well preserved marine reptile skeletons in order to understand ...
  • MIAT: Modular R-wrappers for flexible implementation of MaxEnt distribution modelling 
    Mazzoni, Sabrina; Halvorsen, Rune; Bakkestuen, Vegar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The maximum entropy (MaxEnt) method has gained widespread use for distribution modelling, mostly because of the practical simplicity offered by the maxent.jar software. Whilst MaxEnt was originally described as a machine ...
  • Microhabitat change drives diversification in pholcid spiders 
    Eberle, Jonas; Dimitrov, Dimitar; Valdez-Mondragón, Alejandro; Huber, Bernhard A (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Background Microhabitat changes are thought to be among the main drivers of diversification. However, this conclusion is mostly based on studies on vertebrates. Here, we investigate the influence of ...
  • MicroRNA preparations from individual monogenean Gyrodactylus salaris-a comparison of six commercially available totalRNA extraction kits 
    Fromm, Bastian; David Harris, Philip; Bachmann, Lutz (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Background Describing and evaluating miRNA inventories with Next Generation Sequencing is a goal of scientists from a wide range of fields. It requires high purity, high quality, and high yield RNA extractions ...
  • Microsatellite evolution: Mutations, sequence variation, and homoplasy in the hypervariable avian microsatellite locus HrU10 
    Anmarkrud, Jarl A; Kleven, Oddmund; Bachmann, Lutz; Lifjeld, Jan T (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)
    Background Microsatellites are frequently used genetic markers in a wide range of applications, primarily due to their high length polymorphism levels that can easily be genotyped by fragment length analysis. ...
  • Migration corridors for alpine plants among the `sky islands? of eastern Africa: do they, or did they exist? 
    Chala, Desalegn; Zimmermann, Niklaus E.; Brochmann, Christian; Bakkestuen, Vegar (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    The tropical alpine ecosystem in eastern Africa is highly fragmented among biological ‘sky islands’, where populations of frost-tolerant organisms are isolated from each other by a ‘sea’ of tropical lowlands. One-third of ...
  • Migration distance is positively associated with sex-linked genetic diversity in passerine birds 
    Gohli, Jostein; Lifjeld, Jan Terje; Albrecht, Tomas (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
    A recent comparative analysis of passerine birds found that the frequency of extra-pair paternity was positively associated with neutral genetic diversity. It has been hypothesised that migratory species have more extra-pair ...
  • Mineralogy and geochemistry of pegmatites in the Larvik Plutonic Complex, Norway 
    Sunde, Øyvind (Doctoral thesis / Doktoravhandling, 2019)
    Peculiar rocks consisting of large and rare minerals are known as nepheline syenite pegmatites and can be found in larvikite (national rock of Norway!) around the Larvik area. Detailed chemical analyses of a mineral called ...
  • Mixed mating in homostylous species: Genetic and experimental evidence from an alpine plant with variable herkogamy, primula halleri 
    de Vos, Jurriaan M.; Keller, Barbara; Zhang, Li-Rui; Nowak, Michael; Conti, Elena (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Premise of research. Self-compatibility is a requirement for reproductive assurance via selfing and may therefore be beneficial in environments with infrequent or unpredictable pollinator service. However, self-compatible ...
  • Model adequacy and microevolutionary explanations for stasis in the fossil record 
    Voje, Kjetil L.; Starrfelt, Jostein; Liow, Lee Hsiang (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Long-term phenotypic stasis is frequently observed in the fossil record, but not readily predicted from microevolutionary theory. To test competing explanations for stasis on macroevolutionary timescales we need reliably ...