Now showing items 21-40 of 671

    • Overvåking av fiskesamfunn i store vassdrag etter vannforskriften 

      Museth, Jon; Johnsen, Stein Ivar; Kraabøl, Morten; Dokk, John Gunnar; Skurdal, Jostein (Journal article; Peer reviewed, 2013)
      Vannforskriften skal sikre en mer helhetlig og økosystembasert vannforvaltning i Norge, og om nødvendig iverksette forebyggende eller forbedrende miljøtiltak for å sikre miljøtilstanden i ferskvann, grunnvann og kystvann. ...
    • Assessing the effects of climate on host-parasite interactions: a comparative study of European birds and their parasites 

      Møller, Anders Pape; Merino, Santiago; Soler, Juan José; Antonov, Anton; Badás, Elisa P.; Calero-Torralbo, Miguel A.; de Lope, Florentino; Eeva, Tapio; Figuerola, Jordi; Flensted-Jensen, Einar; Garamszegi, László Zsolt; González-Braojos, Sonia; Gwinner, Helga; Hanssen, Sveinn Are; Heylen, Dieter; Ilmone, Petteri; Klarborg, Kurt; Korpimäki, Erkki; Martínez, Javier; Martínez-de la Puente, Josue; Marzal, Alfonso; Matthysen, Erik; Matyjasiak, Piotr; Molina-Morales, Mercedes; Moreno, Juan; Mousseau, Timothy A.; Nielsen, Jan Tøttrup; Pap, Peter László; Rivero-de Aguilar, Juan; Shurulinkov, Peter; Slagsvold, Tore; Szép, Tibor; Szöllösi, Eszter; Török, Janos; Vaclav, Radovan; Valera, Fransisco; Ziane, Nadia (Journal article; Peer reviewed, 2013)
      Background: Climate change potentially has important effects on distribution, abundance, transmission and virulence of parasites in wild populations of animals. Methodology/Principal Finding: Here we analyzed paired ...
    • “Å, nå telte han deg også” – er det noe vits da? 

      Wold, Line Camilla; Gundersen, Vegard; Fangel, Kirstin (Journal article; Peer reviewed, 2014)
      Automatiske ferdselstellere benyttes i stadig flere naturområder. Vi får vite hvor mange mennesker som gikk her eller der. Vi sitter med et tall. Men hva sier tallene oss egentlig, og hvordan kan vi bruke dem i en adaptiv ...
    • The role of wild reindeer as a flagship species in new management models in Norway 

      Kaltenborn, Bjørn Petter; Andersen, Oddgeir; Gundersen, Vegard (Journal article; Peer reviewed, 2014)
      Wild reindeer are under pressure from human development projects throughout their habitat. Norway is currently making a significant move to establish a new management model based on national reindeer regions and regional ...
    • The genus Recilia Edwards, 1922 (Hemiptera, Cicadellidae) confirmed from Northern Europe 

      Endrestøl, Anders (Journal article; Peer reviewed, 2014)
      There have been some uncertainties concerning the presence of Recilia coronifer (Marshall, 1866) in Northern Europe. The species was reported from Denmark in 1992, but the whereabouts of the specimens have been uncertain. ...
    • Record-low primary productivity and highplant damage in the Nordic Arctic Region in2012 caused by multiple weather events andpest outbreaks 

      Bjerke, Jarle W.; Karlsen, Stein Rune; Høgda, Kjell Arild; Malnes, Eirik; Jepsen, Jane Uhd; Lovibond, Sarah; Vikhamar-Schuler, Dagrun; Tømmervik, Hans (Peer reviewed, 2014)
      The release of cold temperature constraints on photosynthesis has led to increased productivity (greening) in significant parts (32–39%) of the Arctic, but much of the Arctic shows stable (57–64%) or reduced productivity ...
    • The risks of learning: confounding detection anddemographic trend when using count-based indices forpopulation monitoring 

      Gervasi, Vincenzo; Brøseth, Henrik; Gimenez, Olivier; Nilsen, Erlend Birkeland; Linnell, John Durrus (Peer reviewed, 2014)
      Theory recognizes that a treatment of the detection process is required to avoid producing biased estimates of population rate of change. Still, one of three monitoring programmes on animal or plant populations is focused ...
    • Integument colouration in relation to persistent organic pollutants and body condition in arctic breeding black-legged kittiwakes (Rissa tridactyla) 

      Blévin, Pierre; Tartu, Sabrina; Angelier, Frédéric; Leclaire, Sarah; Bustnes, Jan Ove; Moe, Børge; Herzke, Dorte; Gabrielsen, Geir W.; Chastel, Olivier (Journal article; Peer reviewed, 2014)
      Vertebrates cannot synthetize carotenoids de novo but have to acquire themthrough their diet. In birds, carotenoids are responsible for the yellow to red colouration of many secondary sexual traits. They are also involved ...
    • DNA double-strand breaks in relation to persistent organic pollutants in a fasting seabird 

      Fenstad, Anette; Jenssen, Bjørn Munro; Moe, Børge; Hanssen, Sveinn Are; Bingham, Christopher George; Herzke, Dorte; Bustnes, Jan Ove; Krøkje, Åse (Journal article; Peer reviewed, 2014)
      Lipophilic persistent organic pollutants (POPs) are released from fat reserves during fasting, causing increased blood concentrations. Thus, POPs represent a potential anthropogenic stressor during fasting periods. We ...
    • Endocrine and Fitness Correlates of Long-Chain Perfluorinated Carboxylates Exposure in Arctic Breeding Black-Legged Kittiwakes 

      Tartu, Sabrina; Gabrielsen, Geir W.; Blévin, Pierre; Ellis, Hugh; Bustnes, Jan Ove; Herzke, Dorte; Chastel, Olivier (Journal article; Peer reviewed, 2014)
      Increasing levels of poly- and perfluorinated alkyl substances (PFASs) have recently been described in Arctic biota. These emerging substances are of concern given their resistance to degradation and metabolization. Some ...
    • Community-wide mesocarnivore response to partial ungulate migration 

      Henden, John-André; Stien, Audun; Bårdsen, Bård-Jørgen; Yoccoz, Nigel Gilles; Ims, Rolf Anker (Journal article; Peer reviewed, 2014)
      1.Mesocarnivores increase in number and geographic range in human-disturbed ecosystems with cascading negative impact on biodiversity. To mitigate such impacts, it is essential to identify the proximate causes of such ...
    • A catch-22 conflict: Access to semi-domestic reindeer modulatesEurasian lynx depredation on domestic sheep 

      Mattisson, Jenny; Odden, John; Linnell, John Durrus (Journal article; Peer reviewed, 2014)
      Conserving large carnivores in multi-use landscape is a global challenge. In northern Norway the presence of Eurasian lynx (Lynx lynx) conflicts greatly with the current ways of keeping free-grazing, unguarded livestock ...
    • Commonness and rarity in the marine biosphere 

      Connolly, Sean R.; MacNeil, M. Aaron; Caley, M. Julian; Knowlton, Nancy; Cripps, Ed; Hisano, Mizue; Thibaut, Loïc M.; Bhattacharya, Bhaskar D.; Benedetti-Cecchif, Lisandro; Brainard, Russell E.; Brandt, Angelika; Bulleri, Fabio; Ellingsen, Kari Elsa; Kaiser, Stefanie; Kröncke, Ingrid; Linse, Katrin; Maggi, Elena; O'Hara, Timothy D.; Plaisance, Laetitia; Poore, Gary C.B.; Sarkar, Santosh K.; Sathpaty, Kamala K.; Schückel, Ulrike; Williams, Alan; Wilson, Robin S. (Journal article; Peer reviewed, 2014)
      Contributed by Nancy Knowlton, April 28, 2014 (sent for review November 25, 2013; reviewed by Brian McGill and Fangliang He) Explaining patterns of commonness and rarity is fundamental for understanding and managing ...
    • Low cardiac output as physiological phenomenon in hibernating, free-ranging Scandinavian brown bears (Ursus arctos) - an observational study 

      Jørgensen, Peter Godsk; Arnemo, Jon Martin; Swenson, Jon; Jensen, Jan S.; Galatius, Søren; Frøbert, Ole (Journal article; Peer reviewed, 2014)
      Background: Despite 5-7 months of physical inactivity during hibernation, brown bears (Ursus arctos) are able to cope with physiological conditions that would be detrimental to humans. During hibernation, the tissue ...
    • Time and size at seaward migration influence the sea survival of Salmo salar 

      Jonsson, Nina; Jonsson, Bror (Peer reviewed; Journal article, 2014)
      Whether time of seaward migration of young Atlantic salmon Salmo salar influences their subsequent survival and growth was investigated in the River Imsa, south-western Norway. Salmo salar were tagged when moving downstream ...
    • Lynx predation on semi-domestic reindeer: do age and sex matter? 

      Mattisson, Jenny; Arntsen, Gustav Busch; Nilsen, Erlend Birkeland; Loe, Leif Egil; Linnell, John Durrus; Odden, John; Persson, J.; Andrén, H. (Journal article; Peer reviewed, 2014)
      The Eurasian lynx is an efficient stalking predator mainly selecting small-sized ungulates. In northern Scandinavia, semi-domestic reindeer are the only ungulate species available for Eurasian lynx year round and consequently ...
    • Spatial variation in the relationship between performance and metabolic rate in wild juvenile Atlantic salmon 

      Robertsen, Grethe; Armstrong, JD; Nislow, KH; Herfindal, Ivar; Mckelvey, S; Einum, Sigurd (Journal article; Peer reviewed, 2014)
    • Monitoring visitors to natural areas in wintertime: issues in counter accuracy 

      Andersen, Oddgeir; Gundersen, Vegard; Wold, Line Camilla; Stange, Erik (Journal article; Peer reviewed, 2014)
      The sustainable management of vulnerable natural areas requires accurate measurement of visitor flows, especially in mountain and protected areas. Pyroelectric sensors that detect the heat radiation emitted by human bodies ...
    • Linking embryonic temperature with adultreproductive investment in Atlantic salmonSalmo salar 

      Jonsson, Bror; Jonsson, Nina; Finstad, Anders G. (Peer reviewed, 2014)
      The expression of fitness-related traits, such as egg and gonad size, often varies among habitats and exhibits clinal variation along climatic and latitudinal gradients. However, the mechanisms allowing such variations ...
    • The stress of being contaminated? Adrenocortical function and reproduction in relation to persistent organic pollutants in female black legged kittiwakes 

      Tartu, Sabrina; Angelier, Frédéric; Herzke, Dorte; Moe, Børge; Bech, Claus; Gabrielsen, Geir W.; Bustnes, Jan Ove; Chastel, Olivier (Journal article; Peer reviewed, 2014)
      High levels of environmental pollutants such as persistent organic pollutants (POPs) including PCB and DDT have been found in the Arctic and many of those pollutants may impair reproduction through endocrine disruption. ...