• 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; Journal article, 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; Journal article, 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 ...
    • Optimal timing of return migration in Atlantic salmon 

      Foldvik, Anders; Ulvan, Eva Marita; Næsje, Tor (Peer reviewed; Journal article, 2024)
      In many populations of Atlantic salmon, individuals return to rivers months or even a year prior to spawning. This premature arrival in fresh water by far exceeds the time needed for upstream migrations to spawning areas. ...
    • Optimization of dynamic soaring in a flap-gliding seabird affects its large-scale distribution at sea 

      Kempton, James A.; Wynn, Joe; Bond, Sarah; Evry, James; Fayet, Annette L.; Gillies, Natasha; Guilford, Tim; Kavelaars, Marwa; Juarez-Martinez, Ignacio; Padget, Oliver; Rutz, Christian; Shoji, Akiko; Syposz, Martyna; Taylor, Graham K. (Peer reviewed; Journal article, 2022)
      Dynamic soaring harvests energy from a spatiotemporal wind gradient, allowing albatrosses to glide over vast distances. However, its use is challenging to demonstrate empirically and has yet to be confirmed in other seabirds. ...
    • 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 ...
    • Osteochondrosis, but not lameness, is more frequent among free-range pigs than confined herd-mates 

      Etterlin, Pernille Engelsen; Morrison, David A.; Österberg, Julia; Ytrehus, Bjørnar; Heldmer, Eva; Ekman, Stina (Peer reviewed; Journal article, 2015)
      Organic pig production is expanding and amongst the objectives of organic farming are enhancing animal health and welfare. However, some studies have reported a higher prevalence of lameness and joint condemnation at ...
    • 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)
    • An overview of existing raptor contaminant monitoring activitiesin Europe 

      Gómez-Ramírez, P.; Shore, R.F.; van den Brink, N.W.; van Hattum, B.; Bustnes, Jan Ove; Duke, G.; Fritsch, C.; García-Fernández, A.J.; Helander, B.O.; Jaspers, Veerle; Krone, O.; Martínez-López, E.; Mateo, R.; Sonne, C. (Peer reviewed; Journal article, 2014)
      Biomonitoring using raptors as sentinels can provide early warning of the potential impacts of contaminants on humans and the environment and also a means of tracking the success of associated mitigation measures. ...
    • Paint it black: Efficacy of increased wind turbine rotor blade visibility to reduce avian fatalities 

      May, Roelof Frans; Nygård, Torgeir; Falkdalen, Ulla; Åström, Jens; Hamre, Øyvind; Stokke, Bård Gunnar (Peer reviewed; Journal article, 2020)
      As wind energy deployment increases and larger wind-power plants are considered, bird fatalities through collision with moving turbine rotor blades are expected to increase. However, few (cost-) effective deterrent or ...
    • Paint it black: Efficacy of increased wind turbine rotor blade visibility to reduce avian fatalities 

      May, Roelof Frans; Nygård, Torgeir; Falkdalen, Ulla; Åström, Jens; Hamre, Øyvind; Stokke, Bård Gunnar (Peer reviewed; Journal article, 2020)
      As wind energy deployment increases and larger wind-power plants are considered, bird fatalities through collision with moving turbine rotor blades are expected to increase. However, few (cost-) effective deterrent or ...
    • The paradox of searching efficiency or why are violent population cycles so uncommon in terrestrial ecosystem 

      Oksanen, Lauri; Vuorinen, Katariina Elsa M; Oksanen, Tarja Maarit (Peer reviewed; Journal article, 2023)
      The searching efficiency of predators depends on the balance between the adaptations of the predator and the counter-adaptations of the prey. In this evolutionary race, the prey should normally have the upper hand, as it ...
    • Parasitoids in the family Pteromalidae (Hymenoptera, Chalcidoidea) new to Norway 

      Staverløkk, Arnstein (Peer reviewed; Journal article, 2022)
      Chalcidoidea is likely the most species rich superfamily among all Hymenoptera (Noyes 2022). Because of their small size and lack of knowledge, little is known about their species richness and ecology worldwide. In Norway, ...
    • Participatory monitoring drives biodiversity knowledge in global protected areas 

      Mandeville, Caitlin Marie; Nilsen, Erlend Birkeland; Herfindal, Ivar; Finstad, Anders Gravbrøt (Peer reviewed; Journal article, 2023)
      Protected areas are central in strategies to conserve biodiversity. Effective area-based conservation relies on biodiversity data, but the current biodiversity knowledge base is insufficient and limited by geographic and ...
    • Parturition dates in wild Eurasian lynx: evidence of a second oestrus? 

      Mattisson, Jenny; Odden, John; Linnell, John Durrus; Painer, Johanna; Persson, Jens; Andrén, Henrik (Peer reviewed; Journal article, 2020)
      Understanding reproductive physiology of a species is important to assess their potential to respond to environmental variation and perturbation of their social system during the mating or pre-mating seasons. We report 175 ...
    • Pastures under pressure. Effects of other land users and the environment 

      Horstkotte, Tim; Kumpula, Jouko; Sandstrom, Per; Tømmervik, Hans; Kivinen, Sonja; Skarin, Anna; Moen, Jon; Sandström, Stefan (Chapter, 2022)
      Reindeer habitats cover most vegetation zones of northern Fennoscandia, from boreal forest to coastal and alpine areas (Chapters 1 and 3). These vegetation zones are used during different seasons for reindeer grazing and ...
    • Pathways of introduction of alien species in Norway: analyses of an exhaustive dataset to prioritise management efforts 

      Sandvik, Hanno; Olsen, Siri Lie; Töpper, Joachim Paul; Hilmo, Olga (Peer reviewed; Journal article, 2022)
      1. Alien species constitute one of the major threats to global biodiversity. Stopping alien species at an early stage, preferably before establishment, is crucial for the effectiveness of management actions. To enable early ...