• Black-legged kittiwakes as messengers of Atlantification in the Arctic 

      Vihtakari, Mikko; Welcker, Jorg; Moe, Børge; Chastel, Olivier; Tartu, Sabrina; Hop, Haakon; Bech, Claus; Descamps, Sébastien; Gabrielsen, Geir W. (Journal article; Peer reviewed, 2018)
      Climate warming is rapidly altering marine ecosystems towards a more temperate state on the European side of the Arctic. However, this “Atlantification” has rarely been confirmed, as long-term datasets on Arctic marine ...
    • Cardiac adaptation in hibernating, free-ranging Scandinavian Brown Bears (Ursus arctos 

      Jørgensen, Peter Godsk; Evans, Alina; Kindberg, Jonas; Olsen, Lisbeth Høier; Galatius, Søren; Fröbert, Ole (Journal article; Peer reviewed, 2020)
      During six months of annual hibernation, the brown bear undergoes unique physiological changes to adapt to decreased metabolic rate. We compared cardiac structural and functional measures of hibernating and active bears ...
    • Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer 

      Arnold, Walter; Ruf, Thomas; Loe, Leif Egil; Irvine, R. Justin; Ropstad, Erik; Veiberg, Vebjørn; Albon, Steve D. (Journal article; Peer reviewed, 2018)
      Studies of locomotor activity in Svalbard reindeer reported the temporary absence of diel rhythms under Arctic photic conditions. However, using Lomb-Scargle periodogram analyses with high statistical power we found diel ...
    • Computer vision enables short- and long-term analysis of Lophelia pertusa polyp behaviour and colour from an underwater observatory 

      Osterloff, Jonas; Nilssen, Ingunn; Järnegren, Johanna; Van Engeland, Tom; Buhl-Mortensen, Pål; Nattkemper, Tim W. (Peer reviewed, 2019)
      An array of sensors, including an HD camera mounted on a Fixed Underwater Observatory (FUO) were used to monitor a cold-water coral (Lophelia pertusa) reef in the Lofoten-Vesterålen area from April to November 2015. ...
    • Defining animal welfare standards in hunting: body mass determines thresholds for incapacitation time and flight distance 

      Stokke, Sigbjørn; Arnemo, Jon M.; Brainerd, Scott Michael; Söderberg, Arne; Kraabøl, Morten; Ytrehus, Bjørnar (Journal article; Peer reviewed, 2018)
    • Eurasian lynx fitness shows little variation across Scandinavian human-dominated landscapes 

      López-Bao, José Vicente; Aronsson, Malin; Linnell, John Durrus; Odden, John; Persson, Jens; Andrén, Henrik (Peer reviewed, 2019)
      Despite extensive research on the ecology and behavioural adaptations of large carnivores in humandominated landscapes, information about the fitness consequences of sharing landscapes is still limited. We assessed the ...
    • European catfsh (Silurus glanis) as a freshwater apex predator drives ecosystem via its diet adaptability 

      Vejřík, Lukáš; Vejříková, Ivana; Blabolil, Petr; Eloranta, Antti; Kočvara, Luboš; Peterka, Jiří; Sajdlová, Zuzana; The Chung, Son Hoang; Šmejkal, Marek; Kiljunen, Mikko; Cech, Martin (Journal article; Peer reviewed, 2017)
      Apex predators play a key role in ecosystem stability across environments but their numbers in general are decreasing. By contrast, European catfish (Silurus glanis), the European freshwater apex predator, is on the increase. ...
    • Fine-scale behavioural differences distinguish resource use by ecomorphs in a closed ecosystem 

      Hawley, Kate L.; Rosten, Carolyn; Christensen, Guttorm; Lucas, Martyn C. (Journal article, 2016)
      Temporal differences in habitat use and foraging specialisms between ecomorphs represent aspects of behavioural phenotype that are poorly understood with regard to the origin and maintenance of ecological diversity. We ...
    • High prevalence of vaterite in sagittal otoliths causes hearing impairment in farmed fish 

      Reimer, T.; Dempster, T.; Warren-Myers, F.; Jensen, Arne Johan; Swearer, S.E. (Peer reviewed, 2016)
    • Human behaviour can trigger large carnivore attacks in developed countries 

      Penteriani, Vincenzo; del Mar Delgado, Maria; Pinchera, Francesco; Naves, Javier; Fernández-Gil, Alberto; Kojola, Ilpo; Härkönen, Sauli; Norberg, Harri; Frank, Jens; Fedriani, José María; Sahlèn, Veroncia; Støen, Ole-Gunnar; Swenson, Jon; Wabakken, Petter; Pellegrini, Mario; Herrero, Stephen; López-Bao, José Vicente (Peer reviewed, 2016)
      The media and scientific literature are increasingly reporting an escalation of large carnivore attacks on humans in North America and Europe. Although rare compared to human fatalities by other wildlife, the media often ...
    • Integrating data from different survey types for population monitoring of an endangered species: the case of the Eld’s deer 

      Bowler, DIana E.; Nilsen, Erlend B.; Bischof, Richard; O'Hara, Robert B.; Yu, Thin Thin; Oo, Tun; Aug, Myint; Linnell, John D.C. (Peer reviewed, 2019)
      Despite its value for conservation decision-making, we lack information on population abundances for most species. Because establishing large-scale monitoring schemes is rarely feasible, statistical methods that combine ...
    • Longest terrestrial migrations and movements around the world 

      Joly, Kyle; Gurarie, Eliezer; Sorum, Mathew S.; Kaczensky, Petra; Cameron, Matthew D.; Jakes, Andrew F .; Borg, Bridget L.; Nandintsetseg, Dejid; Hopcraft, J. Grant C.; Buuveibaatar, Bayarbaatar; Jones, Paul F.; Mueller, Thomas; Walzer, Chris; Olson, Kirk A.; Payne, John C.; Yadamsuren, Adiya; Hebblewhite, Mark (Peer reviewed, 2019)
      Long-distance terrestrial migrations are imperiled globally. We determined both round-trip migration distances (straight-line measurements between migratory end points) and total annual movement (sum of the distances ...
    • Match between soaring modes of black kites and the fine-scale distribution of updrafts 

      Santos, Carlos D.; Hanssen, Frank Ole; Muñoz, Antonio-Román; Onrubia, Alejandro; Wikelski, Martin; May, Roelof Frans; Silva, João P. (Journal article; Peer reviewed, 2017)
      Understanding how soaring birds use updrafts at small spatial scales is important to identify ecological constraints of movement, and may help to prevent conflicts between wind-energy development and the conservation of ...
    • Ocean predation and mortality of adult Atlantic salmon 

      Strøm, John Fredrik; Rikardsen, Audun; Campana, Steven E.; Righton, David; Carr, Jonathan; Aarestrup, Kim; Stokesbury, Michael J.W.; Gargan, Patrick; Caballero Javierre, Pablo; Thorstad, Eva B. (Peer reviewed, 2019)
    • 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 ...
    • Positioning of aquatic animals based on time-of-arrival and random walk models using YAPS (Yet Another Positioning Solver) 

      Baktoft, Henrik; Gjelland, Karl Øystein; Økland, Finn; Thygesen, Uffe Høgsbro (Journal article; Peer reviewed, 2017)
      Aquatic positional telemetry offers vast opportunities to study in vivo behaviour of wild animals, but there is room for improvement in the data quality provided by current procedures for estimating positions. Here we ...
    • Stable isotopes reveal diet shift from pre-extinction to reintroduced Przewalski's horses 

      Kaczensky, Petra; Šturm, Martina Burnik; Sablin, Mikhail V.; Voigt, Christian C.; Smith, Steve; Ganbaatar, Oyunsaikhan; Balint, Boglarka; Walzer, Chris; Spasskaya, Natalia N. (Journal article; Peer reviewed, 2017)
      The Przewalski’s horse (Equus ferus przewalskii), the only remaining wild horse within the equid family, is one of only a handful of species worldwide that went extinct in the wild, was saved by captive breeding, and has ...
    • Territory location and quality, together with climate, affect the timing of breeding in the whitethroated dipper 

      Nilsson, Anna; Slagsvold, Tore; Røstad, Ole Wiggo; Knudsen, E.; Jerstad, Kurt; Cadahia, Luis; Reitan, Trond; Helberg, Morten; Walseng, Bjørn; Stenseth, Nils Christian (Journal article; Peer reviewed, 2019)
      Recent climate change has led to advanced spring phenology in many temperate regions. The phenological response to variation in the local environment, such as the habitat characteristics of the territories birds occupy, ...
    • The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout 

      Fjørtoft, Helene Børretzen; Besnier, Francois; Stene, Anne; Nilsen, Frank; Bjørn, Pål Arne; Tveten, Ann-Kristin; Finstad, Bengt; Aspehaug, Vidar; Glover, Kevin (Journal article; Peer reviewed, 2017)
      The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout ...
    • Tracking neighbours promotes the coexistence of large carnivores 

      López-Bao, José Vicente; Mattisson, Jenny; Persson, Jens; Aronsson, Malin; Andrén, Henrik (Peer reviewed, 2016)
      The study of competition and coexistence among similar interacting species has long been considered a cornerstone in evolutionary and community ecology. However, understanding coexistence remains a challenge. Using two ...