Now showing items 464-483 of 831

    • Linking bacterial community structure to advection and environmental impact along a coast-fjord gradient of the Sognefjord, western Norway 

      Storesund, Julia Endresen; Sandaa, Ruth-Anne; Thingstad, T. Frede; Asplin, Lars; Albretsen, Jon; Erga, Svein Rune (Elsevier, 2017-12)
      Here we present novel data on bacterial assemblages along a coast-fjord gradient in the Sognefjord, the deepest (1308 m) and longest (205 km) ice-free fjord in the world. Data were collected on two cruises, one in November ...
      Journal article
    • Linking internal and external bacterial community control gives mechanistic framework for pelagic virus-to-bacteria ratios 

      Våge, Selina; Pree, Bernadette; Thingstad, Tron Frede (Wiley, 2016-11)
      For more than 25 years, virus-to-bacteria ratios (VBR) have been measured and interpreted as indicators of the importance of viruses in aquatic ecosystems, yet a generally accepted theory for understanding mechanisms ...
      Journal article
    • Long-term change in a behavioural trait: truncated spawning distribution and demography in Northeast Arctic cod 

      Opdal, Anders Frugård; Jørgensen, Christian (Wiley, 2015-04)
      Harvesting may be a potent driver of demographic change and contemporary evolution, which both may have great impacts on animal populations. Research has focused on changes in phenotypic traits that are easily quantifiable ...
      Journal article
    • Long-term changes in life-history traits of Norwegian spring-spawning herring 

      Claireaux, Marion (The University of Bergen, 2019)
      Life-history traits are key determinants of populations’ dynamics. Those traits are susceptible to natural selection and are therefore sensitive to the mortality regime and the selection pattern a population experience. ...
      Doctoral thesis
    • Long-Term Climate Regime Modulates the Impact of Short-Term Climate Variability on Decomposition in Alpine Grassland Soils 

      Althuizen, Inge; Lee, Hanna; Sarneel, Judith M.; Vandvik, Vigdis (Springer Nature, 2018-12)
      Decomposition of plant litter is an important process in the terrestrial carbon cycle and makes up approximately 70% of the global carbon flux from soils to the atmosphere. Climate change is expected to have significant ...
      Journal article
    • Long-term disturbance dynamics and resilience of tropical peat swamp forests 

      Cole, Lydia E.S.; Bhagwat, Shonil; Willis, Katherine Jane (Wiley, 2015-01)
      1. The coastal peat swamp forests of Sarawak, Malaysian Borneo, are undergoing rapid conversion, predominantly into oil palm plantations. This wetland ecosystem is assumed to have experienced insignificant disturbance in ...
      Journal article
    • Long-term dynamics of wadi trees in a hyper-arid cultural landscape 

      Andersen, Gidske L. (The University of Bergen, 2007-03-09)
      This study focuses on the long-term dynamics of wadi (dry river valley) trees, in particular Acacia tortilis (Forssk.) Hayne, in the hyper-arid Eastern Desert of Egypt. The project was motivated by the importance of ...
      Doctoral thesis
    • Long-term effects of environmentally relevant doses of 2,2’,4,4’,5,5’ hexachlorobiphenyl (PCB153) on neurobehavioural development, health and spontaneous behaviour in maternally exposed mice 

      Haave, Marte; Bernhard, Annette; Jellestad, Finn K.; Heegaard, Einar; Brattelid, Trond; Lundebye, Anne-Katrine (BioMed Central, 2011-01-13)
      Background: Polychlorinated biphenyls (PCBs) are widespread in the environment, human food and breast milk. Seafood is known to contain nutrients beneficial for the normal development and function of the brain, but ...
      Peer reviewedJournal article
    • Longevity and growth of Acacia tortilis; insights from 14C content and anatomy of wood 

      Andersen, Gidske L.; Krzywinski, Knut (BioMed Central, 2007-06-15)
      Background: Acacia tortilis is a keystone species across arid ecosystems in Africa and the Middle East. Yet, its life-history, longevity and growth are poorly known, and consequently ongoing changes in tree populations ...
      Journal articlePeer reviewed
    • Looking forward through the past: identification of 50 priority research questions in palaeoecology 

      Seddon, Alistair; Mackay, Anson W.; Baker, Ambroise G.; Birks, Harry John Betteley; Breman, Elinor; Buck, C. E.; Ellis, Erle C.; Froyd, Cynthia A.; Gill, Jacquelyn L.; Gillson, Lindsey; Johnson, Edward A.; Jones, Vivienne J.; Juggins, Stephen; Macias-Fauria, Marc; Mills, Keely; Morris, Jesse L.; Nogués-Bravo, David; Punyasena, Surangi W.; Roland, Thomas P.; Tanentzap, Andrew; Willis, Katherine Jane; Aberhan, Martin; van Asperen, Eline N.; Austin, William E. N.; Battarbee, Richard W.; Bhagwat, Shonil; Belanger, Christina L.; Bennett, Keith D.; Birks, Hilary H.; Ramsey, Christopher Bronk; Brooks, Stephen J.; de Bruyn, Mark; Butler, Paul G.; Chambers, F. M.; Clarke, Stewart J.; Davies, Althea L.; Dearing, John A.; Ezard, Thomas H. G.; Feurdean, Angelica; Flower, Roger J.; Gell, Peter; Hausmann, Sonja; Hogan, Erika J.; Hopkins, Melanie J.; Jeffers, Elizabeth S.; Korhola, Atte; Marchant, Robert; Kiefer, Thorsten; Lamentowicz, Mariusz; Larocque-Tobler, Isabelle; López-Merino, Lourdes; Liow, Lee Hsiang; McGowan, Suzanne; Miller, Joshua H.; Montoya, Encarni; Morton, Oliver; Nogué, Sandra; Onoufriou, Chloe; Boush, Lisa P.; Rodriguez-Sanchez, F; Rose, Neil L.; Sayer, Carl D.; Shaw, Helen E.; Payne, Richard; Simpson, Gavin; Sohar, Kadri; Whitehouse, Nicki J.; Williams, John W.; Witkowski, Andrzej (Wiley, 2014)
      Journal article
    • Lukket merdsystem - AquaDomen: Effekt på smittedynamikk 

      Tolås, Ida Vilinn (The University of Bergen, 2012-06-04)
      Oppdrettsnæringen har blitt kritisert for å ha en negativ innvirkning på omliggende miljø, der smitteoverføring av ulike agens til ville laksepopulasjoner er et stort problem. Det er også reist bekymring ved den genetiske ...
      Master thesis
    • Macrozooplankton as feed source for farmed fish - growth, product quality and safety 

      Suontama, Jorma (The University of BergenInstitute of Marine Research, 2006-12-14)
      Doctoral thesis
    • Making predictions in a changing world: The benefits of individual-based ecology 

      Stillman, Richard A.; Railsback, Steven F.; Giske, Jarl; Berger, Uta; Grimm, Volker (Oxford University Press on behalf of the American Institute of Biological Sciences, 2015-12-17)
      Ecologists urgently need a better ability to predict how environmental change affects biodiversity. We examine individual-based ecology (IBE), a research paradigm that promises better a predictive ability by using ...
      Journal article
    • Male reproductive biology of European hake Merluccius merluccius 

      Groison, Anne-Laure (The University of Bergen, 2010-05-14)
      The reproductive biology of European hake (Merluccius merluccius) has been studied extensively in the field, but mainly focusing on fecundity regulation in females and its implications for the fishery. The European hake ...
      Doctoral thesis
    • Management-driven evolution in a domesticated ecosystem 

      Vandvik, Vigdis; Töpper, Joachim Paul; Cook, Zoë; Daws, Matthew I.; Heegaard, Einar; Måren, Inger Elisabeth; Velle, Liv Guri (Royal Society, 2014-02-12)
      Millennia of human land-use have resulted in the widespread occurrence of what have been coined ‘domesticated ecosystems’. The anthropogenic imprints on diversity, composition, structure and functioning of such systems ...
      Journal article
    • Mangrove forest extent and status along the Eritrean Red Sea coast 

      Hailemichael, Mussie Tesfayesus (The University of Bergen, 2015-10-08)
      A mangrove forest species and spatial extent study has been conducted in Eritrea to see if there has been mangrove forest area change over the last two decades, and to describe mangrove cover status. GIS, field work data ...
      Master thesis
    • Marine Benthic Diatoms Contain Compounds Able to Induce Leukemia Cell Death and Modulate Blood Platelet Activity 

      Prestegard, Siv Kristin; Oftedal, Linn Silje Wathne; Coyne, Rosie Theresa; Nygård, Gyrid; Skjærven, Kaja Helvik; Knutsen, Gjert; Døskeland, Stein Ove; Herfindal, Lars (MDPI, 2009-11-18)
      In spite of the high abundance and species diversity of diatoms, only a few bioactive compounds from them have been described. The present study reveals a high number of mammalian cell death inducing substances in ...
      Journal article
    • Marine mimivirus relatives are probably large algal viruses 

      Monier, Adam; Borggaard Larsen, Jens; Sandaa, Ruth-Anne; Bratbak, Gunnar; Claverie, Jean-Michel; Ogata, Hiroyuki (BioMed Central, 2008-01-23)
      Background Acanthamoeba polyphaga mimivirus is the largest known ds-DNA virus and its 1.2 Mb-genome sequence has revealed many unique features. Mimivirus occupies an independent lineage among eukaryotic viruses and its ...
      Journal articlePeer reviewed
    • Massive structural and compositional changes over two decades in forest fragments near Kampala, Uganda 

      Bulafu, Collins Edward; Baranga, Deborah; Mucunguzi, Patrick; Telford, Richard; Vandvik, Vigdis (Wiley, 2013)
      Private forests harbor considerable biodiversity, however, they are under greater threat than reserved areas, particularly from urbanization, agriculture, and intense exploitation for timber and fuel wood. The extent to ...
      Journal article
    • Maximizing fisheries yields while maintaining community structure 

      Kolding, Jeppe; Jacobsen, Nis S.; Andersen, Ken Haste; Zwieten, Paul A.M. van (NRC Research Press, 2015)
      Under the ecosystem approach to fisheries, an optimal fishing pattern is one that gives the highest possible yield while having the least structural impact on the community. Unregulated, open-access African inland fisheries ...
      Journal article