Opin vísindi

Browsing Háskóli Íslands by Department "Líf- og umhverfisvísindadeild (HÍ)"

Browsing Háskóli Íslands by Department "Líf- og umhverfisvísindadeild (HÍ)"

Sort by: Order: Results:

  • Silva, Teresa Sofia Giesta da (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2018-12-14)
    Krill are an important component of the Icelandic marine ecosystem. Given their important ecological niche, as conveyors of biological production between phytoplankton and higher trophic levels, fluctuations in krill abundance can have large impacts ...
  • Malinauskaite, Laura; Cook, David; Davidsdottir, Brynhildur; Ögmundardóttir, Helga; Roman, Joe (Elsevier BV, 2019-04)
    The study presents the first systematic review of the existing literature on Arctic ES. Applying the Search, Appraisal, Synthesis and Analysis (SALSA) and snowballing methods and three selection criteria, 33 publications were sourced, including ...
  • Malinauskaite, Laura (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2021-06)
    The thesis examines the dynamics of Arctic social-ecological systems (SES) that enable human wellbeing benefits through whale ecosystem services (ES). It does so through a review of relevant literature, construction of conceptual models, two primary ...
  • Myszor, Iwona Teresa (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2021-02)
    Innate immunity of the lung epithelium provides efficient defenses against pathogens or other stress factors by secretion of antimicrobial peptides, presence of cellular junction proteins and autophagy. Upon activation through epithelial cell receptors ...
  • Kubiriza, Godfrey (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2017-06)
    Although conditions for aquaculture in Uganda and East-Africa are favourable, production remains low. One of the primary limitations to aquaculture development in the region is the lack of economical aquafeeds produced from local raw materials. In ...
  • Katrínardóttir, Borgný; Alves, Jose; Sigurjónsdóttir, Hrefna; Hersteinsson, Páll; Gunnarsson, Tomas Gretar (Public Library of Science (PLoS), 2015-07-10)
    Distinct preference of species for habitats is most often driven by long term differences in demographic rates between habitats. Estimating variation in those rates is key for developing successful conservation strategies. Stochastic events can interact ...
  • Pálsdóttir, Aldís Erna (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2022-06)
    Biodiversity is declining globally, primarily driven by anthropogenic changes and alterations of natural habitats. In lowland Iceland, human impact has increased considerably in the past decades, often involving an increase in numbers of anthropogenic ...
  • Sturludottir, Erla; Desjardins, Christopher David; Elvarsson, Bjarki; Fulton, Elizabeth A.; Gorton, Rebecca; Logemann, Kai; Stefansson, Gunnar (Elsevier BV, 2018-11)
    Icelandic waters are very productive and the fisheries are economically important for the Icelandic nation. The importance of the fisheries has led to progressive fisheries management and extensive monitoring of the ecosystem. However, fisheries ...
  • Kristjánsdóttir, Þórdís; Ron, Emanuel Y.C.; Molins-Delgado, Daniel; Fridjonsson, Olafur; Turner, Charlotta; Björnsdóttir, Snædís; Guðmundsson, Steinn; van Niel, Ed W.J.; Karlsson, Eva Nordberg; Hreggvidsson, Gudmundur Oli (Elsevier BV, 2020-12)
    Rhodothermus marinus has the potential to be well suited for biorefineries, as an aerobic thermophile that produces thermostable enzymes and is able to utilize polysaccharides from different 2nd and 3rd generation biomass. The bacterium produces valuable ...
  • Gowers, Glen-Oliver. F.; Vince, Oliver; Charles, John-Henry; Klarenberg, Ingeborg J.; Ellis, Tom; Edwards, Arwyn (MDPI AG, 2019-11-07)
    Microbial communities in remote locations remain under-studied. This is particularly true on glaciers and icecaps, which cover approximately 11% of the Earth’s surface. The principal reason for this is the inaccessibility of most of these areas due ...
  • Cook, David; Sigurjónsson, Hafþór Ægir; Davíðsdóttir, Brynhildur; Bogason, Sigurður G. (Elsevier BV, 2022-07)
    Environmental life cycle costing (ELCC) is a tool which aggregates five categories of monetary costs across a project's life cycle: investment, operation, maintenance, end-of-life, and externalities. This paper summarises the results from the first two ...
  • Helgason, Rafn; Cook, David; Davidsdottir, Brynhildur (Elsevier BV, 2020-07)
    Alternative fuels have been proposed to ensure compliance with the increasingly more stringent emission standards proposed by the International Maritime Organization. In addition, the Icelandic government aims to introduce 10% renewable energy into the ...
  • Horta-Lacueva, Quentin Jean-Baptiste (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2022-06)
    The theory of divergence by trophic polymorphism, an important part of diversification in vertebrates, has recently been extended to encompass the interplay of developmental, ecological and evolutionary processes (Eco-Evo-Devo dynamics). However, ...
  • Hördur; Olafsdottir, Rannveig (MDPI AG, 2018-12-15)
    Tourism is a complex industry involving numerous types of activities that can have adverse environmental impacts and, over time, gradually change the way tourists experience tourist destinations and their choice of particular tourist destinations. The ...
  • Bergsten, Pauline (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2022-09)
    Surtsey is a volcanic island located on the south-east offshore extension of the Icelandic rift zone. It was formed during successive eruptions from the seafloor in 1963-1967 and has been officially protected and studied ever since. It represents ...
  • Jönsson, Madeleine; Allahgholi, Leila; Sardari, Roya R.R.; Hreggvidsson, Gudmundur Oli; Nordberg Karlsson, Eva (MDPI AG, 2020-02-19)
    Marine macroalgal (seaweed) polysaccharides are highly promising for next-generation applications in several industries. However, despite the reported comprehensive potential of these polysaccharides, commercial products are scarce on the market. Seaweed ...
  • Salazar, Alejandro; Rousk, Kathrin; Jónsdóttir, Ingibjörg Svala; Bellenger, Jean‐Philippe; Andrésson, Ólafur (Wiley, 2019-12-31)
    Warming can alter the biogeochemistry and ecology of soils. These alterations can be particularly large in high northern latitude ecosystems, which are experiencing the most intense warming globally. In this meta‐analysis, we investigated global trends ...
  • Stenkewitz, Ute; Nielsen, Ólafur K.; Skirnisson, Karl; Stefansson, Gunnar (Bio One, 2017-06)
    Feather holes have traditionally been suggested to be feeding traces of chewing lice (mallophagans). There is controversy whether mallophagans are the real source of feather holes. We studied mallophagan infestations and holes in tail feathers of 528 ...
  • Basran, CJ; Bertulli, CG; Cecchetti, A; Rasmussen, Marianne; Whittaker, M; Robbins, J (Inter-Research Science Center, 2019-02-07)
    Entanglement in fishing gear is a significant anthropogenic source of large whale injury and mortality. Although entanglements have been reported in the eastern North Atlantic, their frequency has not been previously estimated. This study used systematic ...
  • Oostdijk, Maartje (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2021-04-29)
    The management of marine resources pose a difficult commons problem as monitoring behavior is difficult and benefit flows from the resources are uncertain. Implementing individual transferable quota (ITQ) is a management regime in which quasi-property ...