Now showing items 628-647 of 679

    • 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 ...
    • Time series analysis reveals synchrony and asynchrony between conflict management effort and increasing large grazing bird populations in northern Europe 

      Cusack, Jeremy J.; Duthie, Brad; Rakotonarivo, Sarobidy; Pozo, Rocio A.; Mason, Tom H. E.; Månsson, Johan; Nilsson, Lovisa; Tombre, Ingunn M.; Tombre, Ingunn; Eythórsson, Einar; Madsen, Jesper; Tulloch, Ayesha; Hearn, Richard D.; Redpath, Steve; Bunnefeld, Nils (Journal article; Peer reviewed, 2018)
      The management of conflicts between wildlife conservation and agricultural practices often involves the implementation of strategies aimed at reducing the cost of wildlife impacts on crops. Vital to the success of these ...
    • Time series analysis reveals synchrony and asynchrony between conflict management effort and increasing large grazing bird populations in northern Europe 

      Cusack, Jeremy J.; Duthie, Brad; Rakotonarivo, Sarobidy; Pozo, Rocio A.; Mason, Tom H.E.; Månsson, Johan; Nilsson, Lovisa; Tombre, Ingunn; Eythórsson, Einar; Madsen, Jesper; Tulloch, Ayesha; Hearn, Richard D.; Redpath, Steve; Bunnefeld, Nils (Peer reviewed, 2018)
      The management of conflicts between wildlife conservation and agricultural practices often involves the implementation of strategies aimed at reducing the cost of wildlife impacts on crops. Vital to the success of these ...
    • Timing and pattern of annual silver eel migration in two European watersheds are determined by similar cues 

      Sandlund, Odd Terje; Diserud, Ola Håvard; Poole, Russell; Bergesen, Knut Aanestad; Dillane, Mary; Rogan, Gerard; Durif, Caroline; Thorstad, Eva Bonsak; Vøllestad, Leif Asbjørn (Journal article; Peer reviewed, 2017)
      Many animals perform long-distance migrations in order to maximize lifetime reproductive success. The European eel migrates several thousand kilometers between their feeding habitats in continental waters (fresh-,brackish, ...
    • Timing is everything: Survival of Atlantic salmon Salmo salar postsmolts during events of high salmon lice densities 

      Bøhn, Thomas; Gjelland, Karl Øystein; Serra-Llinares, Rosa Maria; Finstad, Bengt; Primicerio, Raul; Nilsen, Rune; Karlsen, Ørjan; Sandvik, Anne Dagrun; Skilbrei, Ove Tommy; Elvik, Kristine Marit Schrøder; Skaala, Øystein; Bjørn, Pål Arne (Journal article, 2020)
      1. Atlantic salmon in aquaculture act as reservoir hosts and vectors of parasites like salmon lice and this parasite is shown to harm wild salmonid populations. 2. In this study, n = 29,817 tagged Atlantic salmon were ...
    • Towards a systematics of ecodiversity: The EcoSyst framework 

      Halvorsen, Rune; Skarpaas, Olav; Bryn, Anders; Bratli, Harald; Erikstad, Lars; Simensen, Trond; Lieungh, Eva (Journal article, 2020)
      Background Although a standard taxonomy of organisms has existed for nearly 300 years, no consensus has yet been reached on principles for systematization of ecological diversity (i.e., the co‐ordinated variation of abiotic ...
    • Towards an Urban Resilience Index: A Case Study in 50 Spanish Cities 

      Suárez, Marta; Gomez-Baggethun, Erik; Benayas, Javier; Tilbury, Daniella (Peer reviewed, 2016)
      Urbanization is a major driver of land use change and global environmental decline. With accelerated urbanization worldwide, it is essential to put in place new policies to conserve urban ecosystems, species and the services ...
    • 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 ...
    • Trans-Equatorial Migration Routes, Staging Sites and Wintering Areas of a High-Arctic Avian Predator: The Long-tailed Skua (Stercorarius longicaudus) 

      Gilg, Olivier; Moe, Børge; Hanssen, Sveinn Are; Schmidt, Niels Martin; Sittler, Benoit; Hansen, Jannik; Reneerkens, Jeroen; Sabard, Brigitte; Chastel, Olivier; Moreau, Jérôme; Phillips, Richard A.; Oudman, Thomas; Biersma, Elisabeth M.; Fenstad, Anette; Lang, Johannes; Bollache, Loïc (Peer reviewed, 2013)
      The Long-tailed Skua, a small (,300 g) Arctic-breeding predator and seabird, is a functionally very important component of the Arctic vertebrate communities in summer, but little is known about its migration and winter ...
    • 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 ...
    • Transmission dynamics of the monogenean Gyrodactylus salaris under seminatural conditions 

      Hendrichsen, Ditte Katrine; Kristoffersen, Roar; Gjelland, Karl Øystein; Knudsen, Rune; Kusterle, Stefan; Rikardsen, Audun H.; Henriksen, Eirik Haugstvedt; Smalås, Aslak; Olstad, Kjetil (Journal article; Peer reviewed, 2015)
    • Transplanting turfs to facilitate recovery in a low-alpine environment — What matters? 

      Mehlhoop, Anne Catriona; Evju, Marianne; Hagen, Dagmar (Journal article; Peer reviewed, 2018)
      Questions: Restoration of disturbed alpine ecosystems is difficult due to harsh environmental conditions. Transplanting of vegetation turfs into disturbed areas has been used as a restoration method in disturbed alpine ...
    • Trawling disturbance on megabenthos and sediment in the Barents Sea: Chronic effects on density, diversity, and composition 

      Buhl-Mortensen, Lene; Ellingsen, Kari Elsa; Buhl-Mortensen, Pål; Skaar, Kristian Landmark; Gonzalez-Mirelis, Genoveva (Journal article; Peer reviewed, 2016)
      Bottom-trawl fisheries are expanding into deeper habitats and higher latitudes, but our understanding of their effects in these areas is limited. The ecological importance of habitat-forming megabenthos and their vulnerability ...
    • Trees enhance soil carbon sequestration and nutrient cycling in a silvopastoral system in south-western Nicaragua 

      Hoosbeek, Marcel R.; Remme, Roy P.; Rusch, Graciela (Journal article; Peer reviewed, 2016)
      Tree occurrence in silvopastoral systems of Central America has been under pressure for various reasons including attempts to improve grassland productivity and the need for wood. However, scattered isolated trees are ...
    • Trends in the start of the growing season in Fennoscandia 1982–2011 

      Høgda, Kjell Arild; Tømmervik, Hans; Karlsen, Stein Rune (Journal article; Peer reviewed, 2013)
      Global temperature is increasing, and this is affecting the vegetation phenology in many parts of the world. In Fennoscandia, as well as Northern Europe, the advances of phenological events in spring have been recorded in ...
    • Trophic ecology of piscivorous Arctic charr (Salvelinus alpinus (L.)) in subarctic lakes with contrasting food-web structures 

      Kahilainen, Kimmo Kalevi; Thomas, Stephen; Harrod, Chris; Hayden, Brian; Eloranta, Antti (Journal article; Peer reviewed, 2018)
      The trophic ecology of piscivorous Arctic charr (Salvelinus alpinus (L.); charr) in the food webs of large subarctic lakes is not well understood. We assessed charr diets, parasites, growth, maturity, and stable isotope ...
    • Trophic niche similarity among sea trout Salmo trutta in Central Norway investigated using different time-integrated trophic tracers 

      Davidsen, Jan Grimsrud; Knudsen, Rune; Power, Michael; Sjursen, Aslak Darre; Rønning, Lars; Hårsaker, Karstein; Næsje, Tor; Arnekleiv, Jo Vegar (Journal article; Peer reviewed, 2017)
      From 2011 to 2013, anadromous brown trout Salmo trutta (213−730 mm, total body length, LT) were collected during or shortly after their marine feeding migration at 7 different localities in central Norway. The mean volume ...
    • 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)
    • Tundra greenness 

      Epstein, H.; Bhatt, U.S.; Raynolds, M.K.; Walker, D.A.; Forbes, B.C.; Phoenix, G.K.; Bjerke, Jarle W.; Tømmervik, Hans; Karlsen, Stein Rune; Myneni, R.; Park, T.; Goetz, S.; Jia, G. (Peer reviewed, 2019)
    • Twenty species of bitunicate ascomycetes new to Norway 

      Nordén, Björn; Jäntti, Mari; Jordal, John Bjarne; Læssøe, Thomas; Voglmayr, Hermann; Jaklitsch, Walter (Journal article; Peer reviewed, 2018)
      We here report the following 20 species of non-lichenized bitunicate ascomycetes as new to Norway: Antealophiotrema brunneosporum, Botryosphaeria corticola, Capronia munkii, Capronia normandinae, Capronia parasitica, ...