• Arctic greening from warming promotes declines in caribou populations 

      Fauchald, Per; Park, Taejin; Tømmervik, Hans; Myneni, Ranga B.; Hausner, Vera Helene (Journal article; Peer reviewed, 2017)
      Themigratory tundra caribou herds in North America follow decadal population cycles, and browsing from abundant caribou could be expected to counteract the current climate-driven expansion of shrubs in the circumpolar ...
    • Combined effects of long-term feeding, population density and vegetation green-up on reindeer demography 

      Ballesteros, Manuel; Bårdsen, Bård-Jørgen; Fauchald, Per; Langeland, Knut; Stien, Audun; Tveraa, Torkild (Peer reviewed; Journal article, 2013)
      Abstract. Large herbivores living in seasonal environments are generally food-limited through density dependence and climatic factors. This may result in starvation and increased mortality in winter and reduced fecundity ...
    • Effects of human-induced disturbances and weather on herbivore movement 

      Leclerc, Martin; Tarroux, Arnaud; Fauchald, Per; Stien, Audun; Tveraa, Torkild; St-Laurent, Martin-Hugues (Journal article, 2019)
      Human-caused habitat disturbances and climate change are leading threats to biodiversity. Studying the impacts of human activities on wildlife from a behavioral perspective is a relevant starting point to understand the ...
    • Efficient sampling for ecosystem service supply assessment at a landscape scale 

      Murguzur, Francisco Javier Ancin; Munoz, Lorena; Monz, Christopher; Fauchald, Per; Hausner, Vera Helene (Journal article; Peer reviewed, 2019)
      Decision makers and stakeholders need high-quality data to manage ecosystem services (ES) efficiently. Landscape-level data on ES that are of sufficient quality to identify spatial tradeoffs, co-occurrence and hotspots ...
    • Environmental variation as a driver of predator-prey interactions 

      Tablado, Zulimo; Fauchald, Per; Mabille, Geraldine; Stien, Audun; Tveraa, Torkild (Peer reviewed; Journal article, 2014)
      Animals often face the trade-off of optimizing foraging while limiting predation. In variable and seasonal environments the availability of resources changes spatially and temporally, forcing animals to adapt their spatial ...
    • Foraging tactics in dynamic sea-ice habitats affect individual state in a long-ranging seabird 

      Tarroux, Arnaud; Cherel, Yves; Fauchald, Per; Kato, Akiko; Love, Oliver P.; Ropert-Coudert, Yan; Spreen, Gunnar; Varpe, Øystein; Weimerskirch, Henri; Yoccoz, Nigel; Zahn, Sandrine; Descamps, Sebastien (Peer reviewed; Journal article, 2020)
      1. Individual heterogeneity in diet and foraging behaviour is common in wild animal populations, and can be a strong determinant of how populations respond to environmental changes. Within populations, variation in ...
    • Light-level geolocators reveal spatial variations in interactions between northern fulmars and fisheries 

      Dupuis, Benjamin; Amélineau, Françoise; Tarroux, Arnaud; Bjørnstad, Oskar; Bråthen, Vegard Sandøy; Danielsen, Jóhannis; Descamps, Sebastien; Fauchald, Per; Hallgrimsson, Gunnar Thor; Hansen, Erpur Snær; Helberg, Morten; Helgason, Halfdan Helgi; Jónsson, Jón Einar; Kolbeinsson, Yann; Lorentzen, Erlend; Thompson, Paul; Thórarinsson, Thorkell Lindberg; Strøm, Hallvard (Peer reviewed; Journal article, 2021)
      Seabird−fishery interactions are a common phenomenon of conservation concern. Here, we highlight how light-level geolocators provide promising opportunities to study these interactions. By examining raw light data, it ...
    • Local land use associated with socio-economic development in six arctic regions 

      Ehrich, Dorothee; Thuestad, Alma Elizabeth; Tømmervik, Hans; Fauchald, Per; Hausner, Vera Helene (Journal article; Peer reviewed, 2018)
      The socioeconomic causes of land use change are complex. They are highly context dependent, but most often studied through case studies. Here, we use a quasi-experimental paired block design to investigate whether better ...
    • Long-term tracking of an Arctic-breeding seabird indicates high fidelity to pelagic wintering areas 

      Léandri-Breton, Don-Jean; Tarroux, Arnaud; Elliott, Kyle H.; Legagneux, Pierre; Angelier, Frédéric; Blévin, Pierre; Bråthen, Vegard Sandøy; Fauchald, Per; Goutte, Aurélie; Jouanneau, William; Tartu, Sabrina; Moe, Børge; Chastel, Olivier (Peer reviewed; Journal article, 2021)
      Site fidelity is driven by predictable resource distributions in time and space. However, intrinsic factors related to an individual’s physiology and life-history traits can contribute to consistent foraging behaviour and ...
    • Multi-colony tracking of two pelagic seabirds with contrasting flight capability illustrates how windscapes shape migratory movements at an ocean-basin scale 

      Amelineau, Francoise; Tarroux, Arnaud; Lacombe, Simon; Bråthen, Vegard Sandøy; Descamps, Sebastien; Ekker, Morten; Fauchald, Per; Johansen, Malin; Moe, Børge; Anker-Nilssen, Tycho; Bogdanova, Maria I.; Bringsvor, Ingar S.; Chastel, Olivier; Christensen-Dalsgaard, Signe; Daunt, Francis; Dehnhard, Nina; Erikstad, Kjell E.; Ezhov, Aleksey; Gavrilo, Maria; Hansen, Erpur S.; Harris, Mike P.; Helgason, Halfdan Helgi; Langset, Magdalene; Léandri-Breton, Don-Jean; Lorentsen, Svein-Håkon; Merkel, Benjamin; Newell, Mark; Olsen, Bergur; Reiertsen, Tone Kristin; Systad, Geir Helge Rødli; Thorarinsson, Thorkell L.; Åström, Jens; Strøm, Hallvard (Peer reviewed; Journal article, 2023)
      Migration is a common trait among many animals allowing the exploitation of spatiotemporally variable resources. It often implies high energetic costs to cover large distances, for example between breeding and wintering ...
    • Multiple stakeholders’ perspectives of marine social ecological systems, a case study on the Barents Sea 

      Mikkelsen, Nina; Planque, Benjamin; Arneberg, Per; Skern-Mauritzen, Mette; Hansen, Cecilie; Fauchald, Per; Holsman, Kirstin K.; Haynie, Alan C.; Ottersen, Geir (Peer reviewed; Journal article, 2023)
      The Barents Sea ecosystem components and services are under pressure from climate change and other anthropogenic impacts. Following an Ecosystem-based management approach, multiple simultaneous pressures are addressed ...
    • North Atlantic winter cyclones starve seabirds 

      Clairbaux, Manon; Mathewson, Paul; Porter, Warren; Fort, Jérôme; Strøm, Hallvard; Moe, Børge; Fauchald, Per; Descamps, Sebastien; Helgason, Halfdan Helgi; Bråthen, Vegard Sandøy; Merkel, Benjamin; Anker-Nilssen, Tycho; Bringsvor, Ingar Støyle; Chastel, Olivier; Christensen-Dalsgaard, Signe; Danielsen, Jóhannis; Daunt, Francis; Dehnhard, Nina; Erikstad, Kjell E.; Ezhov, Alexey V.; Gavrilo, Maria; Krasnov, Yuri V.; Langset, Magdalene; Lorentsen, Svein-Håkon; Newell, Mark; Olsen, Bergur; Reiertsen, Tone Kristin; Systad, Geir Helge Rødli; Thórarinsson, Thorkell L; Baran, Mark; Diamond, Tony; Fayet, Annette L.; Fitzsimmons, Michelle G.; Frederiksen, Morten; Gilchrist, Hugh G.; Guilford, Tim; Huffeldt, Nicholas P.; Jessopp, Mark; Johansen, Kasper L.; Kouwenberg, Amy-Lee; Linnebjerg, Jannie F.; Major, Heather L.; Tranquilla, Laura McFarlane; Mallory, Mark; Merkel, Flemming R.; Montevecchi, William A.; Mosbech, Anders; Petersen, Aevar; Grémillet, David (Peer reviewed; Journal article, 2021)
      Each winter, the North Atlantic Ocean is the stage for numerous cyclones, the most severe ones leading to seabird mass-mortality events called ‘‘winter wrecks.’’ During these, thousands of emaciated seabird carcasses are ...
    • 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. ...
    • Population densities, vegetation green-up, and plant productivity: impacts on reproductive success and juvenile body mass in reindeer 

      Tveraa, Torkild; Stien, Audun; Bårdsen, Bård-Jørgen; Fauchald, Per (Peer reviewed; Journal article, 2013)
      Global warming is expected to cause earlier springs and increased primary productivity in the Arctic. These changes may improve food availability for Arctic herbivores, but may also have negative effects by generating a ...
    • Spring phenology shapes the spatial foraging behavior of Antarctic petrels 

      Fauchald, Per; Tarroux, Arnaud; Tveraa, Torkild; Cherel, Yves; Ropert-Coudert, Yan; Kato, Akiko; Love, Oliver P.; Varpe, Øystein; Descamps, Sébastien (Journal article; Peer reviewed, 2017)
      In polar seas, the seasonal melting of ice triggers the development of an open-water ecosystem characterized by short-lived algal blooms, the grazing and development of zooplankton, and the influx of avian and mammalian ...
    • Temporal changes in the relative abundance of anadromous Arctic charr, brown trout, and Atlantic salmon in northern Europe: Do they reflect changing climates? 

      Svenning, Martin; Falkegård, Morten; Dempson, J. Brian; Power, Michael; Bårdsen, Bård-Jørgen; Guðbergsson, Gudni; Fauchald, Per (Peer reviewed; Journal article, 2021)
      1. Warming temperatures resulting from climate change may alter the distribution and abundance of many freshwater fish species, especially those in northern latitudes. Owing to interspecific differences in temperature ...
    • Transitions of social-ecological subsistence systems in the Arctic 

      Fauchald, Per; Hausner, Vera Helene; Schmidt, Jennifer Irene; Clark, Douglas A. (Journal article; Peer reviewed, 2017)
      Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development ...
    • Tundra greenness 

      Epstein, Howard E.; Bhatt, U.S.; Raynolds, M.; Walker, D.; Pinzon, J.; Tucker, C.J.; Forbes, B.C.; Horstkotte, T.; Macias-Fauria, M.; Martin, A.; Phoenix, G.; Bjerke, Jarle W.; Tømmervik, Hans; Fauchald, Per; Vickers, H.; Myneni, R.; Park, T.; Dickerson, C. (Journal article; Peer reviewed, 2018)