Now showing items 232-251 of 450

  • Cramer, Emily Rebecca A; Garcia-del-Rey, Eduardo; Johannessen, Lars Erik; Laskemoen, Terje; Marthinsen, Gunnhild; Johnsen, Arild; Lifjeld, Jan Terje (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Sperm swimming performance affects male fertilization success, particularly in species with high sperm competition. Understanding how sperm morphology impacts swimming performance is therefore important. Sperm swimming ...
  • Aune, Sigrun; Bryn, Anders; Hovstad, Knut Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The long history of human land use have had a strong influence on ecosystems and landscapes in the boreal forest region of Northern Europe and created semi-natural habitats of high conservation value. In this study, we ...
  • Rekdal, Silje Larsen (Doctoral thesis / Doktoravhandling, 2020)
    All organisms need to fight pathogens to avoid infectious diseases. In vertebrates, two classes of polymorphic genes from the major histocompatibility complex (MHC) are crucial for triggering immune responses against ...
  • 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 ...
  • Lykova, Inna; Rowe, Ralph; Poirier, Glenn; Helwig, Kate; Friis, Henrik (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    A new arrojadite-group mineral manganoarrojadite-(KNa), ideally KNa5MnFe13Al(PO4)11(PO3OH)(OH)2, was found in a phosphate-bearing granite pegmatite at the Palermo No. 1 mine, New Hampshire, USA. It forms anhedral grains ...
  • Yau, Sheree; Lopes dos Santos, Adriana; Eikrem, Wenche; Gérikas Ribeiro, Catherine; Gourvil, Priscillia; Balzano, Sergio; Escande, Marie-Line; Moreau, Hervé; Vaulot, Daniel (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Members of the class Mamiellophyceae comprise species that can dominate picophytoplankton diversity in polar waters. Yet, polar species are often morphologically indistinguishable from temperate species, although clearly ...
  • Simensen, Trond (Doctoral thesis / Doktoravhandling, 2021)
    Landscapes and ecosystems all over the world are changing at an increasingly rapid rate. Systematically structured knowledge about nature’s diversity is a prerequisite for knowledge-based spatial planning and nature ...
  • 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 ...
  • 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 ...
  • Tsuboi, Masahito; Kopperud, Bjørn Tore; Mayer, Christine; Grabowski, Mark Walter; Voje, Kjetil L.; Pelabon, Christophe; Hansen, Thomas F (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The increasing availability of 3D-imaging technology provides new opportunities for measuring morphology. Photogrammetry enables easy 3D-data acquisition compared to conventional methods and here we assess its accuracy for ...
  • Cramer, Emily Rebecca A; Rowe, Melissah; Eroukhmanoff, Fabrice; Lifjeld, Jan Terje; Sætre, Glenn-Peter; Johnsen, Arild (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Sperm swimming performance, including swimming speed and the proportion of motile cells, may strongly affect fertilization success. However, little is known about how methodological factors affect in vitro measurement of ...
  • 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 ...
  • 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, ...
  • 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 ...
  • Vollering, Julien; Halvorsen, Rune; Mazzoni, Sabrina (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The widely used “Maxent” software for modeling species distributions from presence‐only data (Phillips et al., Ecological Modelling, 190, 2006, 231) tends to produce models with high‐predictive performance but low‐ecological ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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. ...
  • 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 ...