Now showing items 386-405 of 575

    • On fitness and partial migration in a large herbivore – migratory moose have higher reproductive performance than residents 

      Rolandsen, Christer Moe; Solberg, Erling Johan; Sæther, Bernt-Erik; Van Moorter, Bram; Herfindal, Ivar; Bjørneraas, Kari (Journal article; Peer reviewed, 2016)
      Partially migratory populations comprise both resident and migratory individuals. Th ese tactics may coexist if their demographic contribution to future generations (i.e. fitness) are equal or vary temporally with environmental ...
    • Ongoing niche differentiation under high gene flow in a polymorphic brackish water threespine stickleback (Gasterosteus aculeatus) population 

      Østbye, Kjartan; Taugbøl, Annette; Ravinet, Mark; Harrod, Chris; Pettersen, Ruben Alexander; Bernatchez, Louis (Journal article; Peer reviewed, 2018)
      Background: Marine threespine sticklebacks colonized and adapted to brackish and freshwater environments since the last Pleistocene glacial. Throughout the Holarctic, three lateral plate morphs are observed; the low, partial ...
    • Open Access Sympatric Atlantic puffins and razorbills show contrasting responses to adverse marine conditions during winter foraging within the North Sea 

      St.John Glew, Katie; Wanless, Sarah; Harris, Michael P.; Daunt, Francis; Erikstad, Kjell Einar; Strøm, Hallvard; Speakman, John R.; Kürten, Benjamin; Trueman, Clive N. (Movement Ecology;, Peer reviewed, 2019)
      Background: Natural environments are dynamic systems with conditions varying across years. Higher trophic Level consumers may respond to changes in the distribution and quality of available prey by moving to locate New ...
    • OpenStreetMap history for intrinsic quality assessment: Is OSM up-to-date? 

      Minghini, Marco; Frassinelli, Francesco (Peer reviewed, 2019)
      OpenStreetMap (OSM) is a well-known crowdsourcing project which aims to create a geospatial database of the whole world. Intrinsic approaches based on the analysis of the history of data, i.e. its evolution over time, have ...
    • Operationalising ecosystem service assessment in Bayesian Belief Networks: experiences within the OpenNESS project 

      Smith, Ron I.; Barton, David Nicholas; Dick, Jan; Haines-Young, Roy; Madsen, Anders L.; Rusch, Graciela; Termansen, Mette; Woods, Helen; Carvalho, Laurence; Giucă, Relu Constantin; Luque, Sandra; Odee, David; Rusch, Veronica E.; Saarikoski, Heli; Adamescu, Cristian Mihai; Dunford, Robert; Ochieng, John; Gonzalez-Redino, Julen; Stange, Erik; Vădineanuh, Angheluță; Verweijq, Peter; Vikström, Suvi (Journal article; Peer reviewed, 2017)
      Nine Bayesian Belief Networks (BBNs) were developed within the OpenNESS project specifically for modelling ecosystem services for case study applications. The novelty of the method, its ability to explore problems, to ...
    • Optimal size at seaward migration in an anadromous salmonid 

      Jonsson, Bror; Jonsson, Marius; Jonsson, Nina (Journal article; Peer reviewed, 2016)
      In this study, the probabilistic reaction norm was calculated for length at different ages of smolting before seaward migration of Atlantic salmon Salmo salar spawning in the Norwegian River Imsa. The reaction norm was ...
    • Organochlorines, perfluoroalkyl substances, mercury, and egg incubation temperature in an Arctic seabird: Insights from data loggers 

      Blévin, Pierre; Schaffer, Scott A.; Bustamante, Paco; Angelier, Frédéric; Picard, Baptiste; Herzke, Dorte; Moe, Børge; Gabrielsen, Geir Wing; Bustnes, Jan Ove; Chastel, Olivier (Journal article, 2018)
      In birds, incubation‐related behaviors and brood patch formation are influenced by hormonal regulation such as prolactin secretion. Brood patch provides efficient heat transfer between the incubating parent and the developing ...
    • 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. ...
    • Overvåking av sjeldne og rødlistede lavpå gamle eiker – lærdommer fra etpilotstudium 

      Sverdrup-Thygeson, Anne; Evju, Marianne; Gough, Leonie; Bratli, Harald; Haugan, Reidar; Nordén, Björn (Journal article; Peer reviewed, 2015)
    • Payments for Ecosystem Services as a Policy Mix: Demonstrating the institutional analysis and development framework on conservation policy instruments 

      Barton, David Nicholas; Benavides, Karla; Chacón-Cascante, Adriana; Le Coq, Jean-Francois; Quiros, Miriam Miranda; Porras, Ina; Primmer, Eeva; Ring, Irene (Journal article; Peer reviewed, 2017)
      Policy mix analysis has been applied in research on energy, climate, urban and transport policy, and more recently biodiversity conservation and ecosystem services. However, policy mix analysis has thus far been employed ...
    • Perceptions of environmental justice and the conflict surrounding large carnivore management in Norway — Implications for conflict management 

      Jacobsen, Kim S.; Linnell, John Durrus (Journal article; Peer reviewed, 2016)
      Human-wildlife conflict is increasingly being recognised as containing strong elements of social conflict. The extent to which stakeholders regard a management system as being just and fair is a key social dimension of ...
    • Perfluorinated substances and telomeres in an Arctic seabird: Cross-sectional and longitudinal approaches 

      Blévin, Pierre; Angelier, Frédéric; Tartu, Sabrina; Bustamante, Paco; Herzke, Dorte; Moe, Børge; Bech, Claus; Gabrielsen, Geir Wing; Bustnes, Jan Ove; Chastel, Olivier (Journal article; Peer reviewed, 2017)
      Telomeres are non-coding DNA repeats located at the termini of eukaryotic chromosomes, regulated by dynamic processes balancing shortening and maintenance. Despite a mechanism to slow-down telomere shortening, cell division ...
    • Performance test and verification of an off-the-shelf automated avian radar tracking system 

      May, Roel; Steinheim, Yngve; Kvaløy, Pål; Vang, Roald; Hanssen, Frank (Journal article; Peer reviewed, 2017)
      Microwave radar is an important tool for observation of birds in flight and represents a tremendous increase in observation capability in terms of amount of surveillance space that can be covered at relatively low cost. ...
    • Persistent reduction of segment growth and photosynthesis in a widespread and important sub-Arctic moss species after cessation of three years of experimental winter warming 

      Bjerke, Jarle W.; Bokhorst, Stef; Callaghan, Terry V.; Phoenix, Gareth K. (Journal article; Peer reviewed, 2017)
      1. Winter is a period of dormancy for plants of cold environments. However, winter climate is changing, leading to an increasing frequency of stochastic warm periods (winter warming events) and concomitant reductions in ...
    • Pestplanten tromsøsvineblom Jacobaea alpina x subalpina i Norge - opphav og status 

      Alm, Torbjørn; Deschamps, Amandine Maria; Often, Anders (Journal article; Peer reviewed, 2016)
      Jacobaea alpina (syn. Senecio alpinus, S. cordatus) and J. subalpina (syn. Senecio subalpinus) are native to the mountains of Central Europe. Both were cultivated as ornamentals in late 19th century Tromsø. From the early ...
    • Phenology and cover of plant growth forms predict herbivore habitat selection in a high latitude ecosystem 

      Iversen, Marianne; Fauchald, Per; Langeland, Knut; Ims, Rolf Anker; Yoccoz, Nigel Gilles; Bråthen, Kari Anne (Journal article; Peer reviewed, 2014)
      The spatial and temporal distribution of forage quality is among the most central factors affecting herbivore habitat selection. Yet, for high latitude areas, forage quantity has been found to be more important than quality. ...
    • Phenology of deer ked (Lipoptena cervi) host-seeking flight activity and its relationship with prevailing autumn weather 

      Mysterud, Atle; Madslien, Knut; Herland, Anders; Viljugrein, Hildegunn; Ytrehus, Bjørnar (Peer reviewed, 2016)
      Background: The deer ked (Lipoptena cervi) is an ectoparasite on cervids that has invaded large parts of Norway, Sweden and Finland during recent decades. During their host-seeking flight activity, the adult deer keds ...
    • Physiological costs of infection: herpesvirus replication is linked to blood oxidative stress in equids 

      Costantini, David; Seeber, Peter A.; Soilemetzidou, Sanatana-Eirini; Azab, Walid; Bohner, Julia; Buuveibaata, Bayarbaatar; Czirjak, Gabor A.; East, Marion L.; Greunz, Eva Maria; Kaczensky, Petra; Lamglait, Benjamin; Melzheimer, Jörg; Uiseb, Kenneth; Ortega, Alix; Osterrieder, Nikolaus; Sandgreen, Ditte-Mari; Simon, Marie; Walzer, Chris; Greenwood, Alex D. (Journal article; Peer reviewed, 2018)
      Viruses may have a dramatic impact on the health of their animal hosts. The patho-physiological mechanisms underlying viral infections in animals are, however, not well understood. It is increasingly recognized that oxidative ...
    • Pink salmon in Norway: the reluctant invader 

      Sandlund, Odd Terje; Berntsen, Henrik Hårdensson; Fiske, Peder; Kuusela, Jorma; Muladal, Rune; Niemelä, Eero; Uglem, Ingebrigt; Forseth, Torbjørn; Mo, Tor Atle; Thorstad, Eva B.; Veselov, Alexey E.; Vollset, Knut Wiik; Zubchenko, Alexander V. (Peer reviewed, 2018)
      In 2017, Norway experienced an invasion of the Pacific salmonid pink salmon (Oncorhynchus gorbuscha) in numbers never before seen in rivers all along the coast. Significant numbers were also caught in other parts of ...
    • Plant functional trait change across a warming tundra biome 

      Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Rüger, Nadja; Beck, Pieter S. A.; Blach-Overgaard, Anne; Blok, Daan; Cornelissen, J. Hans C.; Forbes, Bruce C.; Georges, Damien; Goetz, Scott J.; Guay, Kevin C.; Henry, Gregory H.R.; HilleRisLambers, Janneke; Hollister, Robert D.; Karger, Dirk N.; Kattge, Jens; Manning, Peter; Prevéy, Janet S.; Rixen, Christian; Schaepman-Strub, Gabriela; Thomas, Haydn J.D.; Vellend, Mark; Wilmking, Martin; Wipf, Sonja; Carbognani, Michele; Hermanutz, Luise; Lévesque, Esther; Molau, Ulf; Petraglia, Alessandro; Soudzilovskaia, Nadejda A.; Spasojevic, Marko J.; Tomaselli, Marcello; Vowles, Tage; Alatalo, Juha M.; Alexander, Heather D.; Anadon-Rosell, Alba; Angers-Blondin, Sandra; te Beest, Mariska; Berner, Logan; Björk, Robert G.; Buchwal, Agata; Buras, Allan; Christie, Katherine; Cooper, Elisabeth J.; Dullinger, Stefan; Elberling, Bo; Eskelinen, Anu; Frei, Esther R.; Grau, Oriol; Grogan, Paul; Hallinger, Martin; Semenschuk, Philipp; Speed, James David Mervyn; Hofgaard, Annika (Journal article; Peer reviewed, 2018)
      The tundra is warming more rapidly than any other biome on Earth, and the potential ramifications are far-reaching because of global feedback effects between vegetation and climate. A better understanding of how environmental ...