Blar i Norsk institutt for naturforskning på tittel

Viser treff 1754-1773 av 4307

    • Increasing water temperatures exacerbate the potential for density dependence in juvenile steelhead 

      Myrvold, Knut Marius; Kennedy, Brian Patrick (Journal article; Peer reviewed, 2017)
      We study the potential effects of predicted climate change on the energetic demands of juvenile steelhead (Oncorhynchus mykiss) and their consequences for local population size and structure in Idaho, USA. Projected increases ...

    • Index Measuring Land Use Intensity—A Gradient‐Based Approach 

      Erikstad, Lars; Simensen, Trond; Bakkestuen, Vegar; Halvorsen, Rune (Journal article, 2023)
      To monitor the changes in the landscape, and to relate these to ecological processes, we need robust and reproducible methods for quantifying the changes in landscape patterns. The main aim of this study is to present, ...

    • The Index-Based Ecological Condition Assessment (IBECA) - Technical protocol, version 1.0 

      Töpper, Joachim; Jakobsson, Simon (NINA Report;1967, Research report, 2021)
      Töpper J. & Jakobsson S. 2021. The Index-Based Ecological Condition Assessment (IBECA) - Technical protocol, version 1.0. NINA Report 1967. Norwegian Institute for Nature Research. Planet Earth experiences substantial and ...

    • Indikatorer for økologisk tilstand i våtmark, semi-naturlig mark og naturlig åpne områder under skoggrensa 

      Nybø, Signe; Kolstad, Anders; Sandvik, Hanno; Bakkestuen, Vegar; Evju, Marianne; Framstad, Erik; Grainger, Matthew; Jepsen, Jane; Nater, Chloé; Speed, James D.M.; Töpper, Joachim; Venter, Zander; Åström, Jens; Åström, Sandra C.H.; Bargmann, Tessa B.; Silvennoinen, Hanna M.; Sydenham, Markus A.K. (NINA Rapport;2336, Research report, 2023)
      Nybø, S., Kolstad, A.L., Sandvik, H., Bakkestuen, V., Evju, M., Framstad, E., Grainger, M., Jepsen, J.U., Nater, C.R., Speed, J.D.M., Töpper, J.P., Venter, Z., Åström, J., Åström, S.C.H., Bargmann, T., Silvennoinen, H.M. ...

    • Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds 

      Merkel, Benjamin; Descamps, Sebastien; Yoccoz, Nigel; Grémillet, David; Daunt, Francis; Erikstad, Kjell E; Ezhov, Aleksey V.; Harris, Mike P.; Gavrilo, Maria; Lorentsen, Svein Håkon; Reiertsen, Tone Kristin; Steen, Harald; Systad, Geir Helge Rødli; Þórarinsson, Þorkell Lindberg; Wanless, Sarah; Strøm, Hallvard (Peer reviewed; Journal article, 2020)
      Abstract Aim: In migratory species, individuals often use fixed and individual-specific migration strategies, which we term individual migration strategy fidelity (IMSF). Our goal was to test if guillemots have flexible ...

    • Individual Movement - Sequence Analysis Method (IM-SAM): characterizing spatio-temporal patterns of animal habitat use across landscapes 

      De Groeve, Johannes; Cagnacci, Francesca; Ranc, Nathan; Bonnot, Nadège C.; Gehr, Benedikt; Heurich, Marco; Hewison, A.J. Mark; Kroeschel, Max; Linnell, John Durrus; Morellet, Nicolas; Mysterud, Atle; Sandfort, Robin; Van De Weghe, Nico (Peer reviewed; Journal article, 2019)
      We present methodological advances to a recently developed framework to study sequential habitat use by animals using a visually-explicit and tree-based Sequence Analysis Method (SAM), derived from molecular biology and ...

    • Individual Movement - Sequence Analysis Method (IM-SAM): characterizing spatio-temporal patterns of animal habitat use across landscapes 

      De Groeve, Johannes; Cagnacci, Francesca; Ranc, Nathan; Bonnot, Nadège C.; Gehr, Benedikt; Heurich, Marco; Hewison, A.J. Mark; Kroeschel, Max; Linnell, John Durrus; Morellet, Nicolas; Mysterud, Atle; SAndfort, Robin; Van De Weghe, Nico (Peer reviewed; Journal article, 2019)
      We present methodological advances to a recently developed framework to study sequential habitat use by animals using a visually-explicit and tree-based Sequence Analysis Method (SAM), derived from molecular biology and ...

    • Individual phenotypic plasticityexplains seasonal variation in sperm morphology in a passerine bird 

      Schmoll, Tim; Kleven, Oddmund; Rusche, Maria (Peer reviewed; Journal article, 2018)
      Background: Spermatozoa display impressive variation in size and form among and within animal species. In birds, comparative evidence suggests that post-copulatory sexual selection resulting from extra-pair copulations is ...

    • Individual recognition of Atlantic Salmon using iris biometry 

      Foldvik, Anders; Jakobsen, Frank; Ulvan, Eva Marita (Peer reviewed; Journal article, 2020)
      Traditional tagging methods for fishes can have issues relating to both animal welfare and economic costs. Biometric data such as iris patterns can be captured via digital cameras, which allows for non-invasive tagging and ...

    • Individual shark profiling: An innovative and environmentally 

      Clua, Eric E.G.; Linnell, John D.C. (Peer reviewed; Journal article, 2018)
      Most shark-induced human fatalities are followed by widespread and unselective culling campaigns that have limited effectiveness and may have high ecological costs for threatened species. The blanket culling strategy ...

    • Individual-Level Memory is Sufficient to Create Spatial Segregation Among Neighboring Colonies of Central Place Foragers 

      Aarts, Geert; Mul, Evert; Fieberg, John; Brasseur, Sophie; van Gils, Jan A.; Matthiopoulos, Jason; Riotte-Lambert, Louise (Peer reviewed; Journal article, 2021)
      Marine Spatial Planning (MSP) is a relatively new approach to ocean management and has been widely implemented worldwide. Ideally, MSP should be established as a public process that analyzes and distributes human activities ...

    • Infection by the cestodes Triaenophorus crassus and Diphyllobothrium spp. in a polymorphic whitefish population 

      Sandlund, Odd Terje; Næsje, Tor; Diserud, Ola Håvard (Peer reviewed; Journal article, 2021)
      The whitefish (Coregonus lavaretus s.l.) stock in Lake Femunden, Norway, includes three morphs: deepwater spawning (D-), river spawning (R-) and shallow water spawning (S-) whitefish. Infections by Diphyllobothrium spp. ...

    • Influence of gear switching on recapture of Atlantic salmon (Salmo salar) in catch-and- release fisheries 

      Lennox, Robert J.; Diserud, Ola Håvard; Cooke, Steven J.; Thorstad, Eva Bonsak; Whoriskey, Frederick G.; Solem, Øyvind; Havn, Torgeir Børresen; Uglem, Ingebrigt (Journal article; Peer reviewed, 2016)
      Anglers that release Atlantic salmon (Salmo salar) in recreational fisheries do so with the intention that the fish will survive and contribute to succeeding generations. In some instances, salmon that are released may be ...

    • Influences of migration phenology on survival are size-dependent in juvenile Atlantic salmon (Salmo salar) 

      Jonsson, Bror; Jonsson, Marius; Jonsson, Nina (Journal article; Peer reviewed, 2017)
      Long-distance migratory species can reduce mortality risks by synchronizing the migration event and create confusion by swamping predators with high densities. To reduce confusion, predators are known to primarily select ...

    • Influencia de los árboles en la vegetación herbácea de sistemas ganaderos del trópico seco de Nicaragua 

      Zapata, Piedad; Rusch, Graciela; Ibrahim, Muhammad; DeClerk, Fabrice; Casanoves, Fernando; Beer, John (Journal article; Peer reviewed, 2013)
      Se estudiaron las características estructurales de tres especies forestales y su efecto sobre la productividad primaria neta aérea y la composición florística de pastizales naturales en el trópico seco de Nicaragua. Las ...

    • «Innendørs blir fantasien innestengt»: Om nærnaturens betydning i barns hverdagsliv 

      Wold, Line C.; Skår, Margrete; Gundersen, Vegard (Journal article; Peer reviewed, 2016)
      The goal of this study is to gain more knowledge about children's uses and experiences when playing and spending time in nearby nature, without adult presence. The study is based on fieldwork among 26 children aged 12-13 ...

    • Inngrep i reinbeiteland. Biologi, jus og strategier i utbyggingssaker 

      Vistnes, Ingunn; Nellemann, Christian; Bull, Kirsti Strøm (NINA Temahefte;26, Book, 2004)
      Vistnes, I., Nellemann, C., & Strøm Bull, K. 2004. Inngrep i reinbeiteland. Biologi, jus og strategier i utbyggingssaker. - NINA Temahefte 26. 67pp

    • Inngrepseffekter på reindrifta i Troms. Kunnskapsgrunnlag for regionalt planarbeid 

      Riseth, Jan Åge; Johansen, Bernt (Journal article, 2022)
      Som et grunnlagsarbeid for det regionale planarbeidet for reindrifta i Troms gjennomførte Norut (som ble fusjonert inn i NORCE i 2019) på oppdrag for Troms fylkeskommune en inngrepsanalyse. Formålet med arbeidet var å gi ...

    • Innkrysning av rømt oppdrettslaks i Sognefjorden 

      Karlsson, Sten; Diserud, Ola H.; Sægrov, Harald; Ugedal, Ola (NINA Rapport;1387, Research report, 2017)
      Karlsson, S., Diserud, O. H., Sægrov, H. Ugedal, O. 2017. Innkrysning av rømt oppdrettslaks i Sognefjorden. – NINA Rapport 1387. 13 s. Vitenskapelig råd for lakseforvaltning har vurdert rømt oppdrettslaks som den største ...

    • Innkryssing av rømt oppdrettslaks ovenfor og nedenfor Målselvfossen 

      Svenning, Martin-A.; Diserud, Ola; Karlsson, Sten (NINA Rapport;1971, Research report, 2021)
      Svenning, M-A., Diserud, O. & Karlsson, S. 2021. Innkryssing av rømt oppdrettslaks ovenfor og nedenfor Målselvfossen. Norsk institutt for naturforskning. I henhold til kvalitetsnormen for ville bestander av atlantisk ...