Now showing items 624-643 of 950

    • New tools to evaluate plastic ingestion by northern fulmars applied to North Sea monitoring data 2002–2018 

      van Franeker, Jan A.; Kühn, Susanne; Anker-Nilssen, Tycho; Edwards, Ewan W.J.; Gallien, Fabrice; Guse, Nils; Kakkonen, Jenni E.; Mallory, Mark L.; Miles, Will; Olsen, Kåre Olav; Pedersen, John; Provencher, Jennifer; Roos, Mervyn; Stienen, Eric; Turner, Daniel M.; van Loon, Willem M.G.M. (Peer reviewed; Journal article, 2021)
      Monitoring plastic in stomachs of beached northern fulmars for OSPAR’s Ecological Quality Objectives (EcoQOs) has been incorporated into the European Marine Strategy Framework Directive (MSFD). This paper aims to provide ...
    • Non-native vascular flora of the Arctic: Taxonomic richness, distribution and pathways 

      Wasowicz, Pawel; Sennikov, Alexander N.; Westergaard, Kristine Bakke; Spellman, Katie; Carlson, Matthew; Gillespie, Lynn J.; Saarela, Jeffery M.; Seefeldt, Steven S.; Bennett, Bruce; Bay, Christian; Ickert-Bond, Stefanie; Väre, Henry (Journal article, 2020)
      We present a comprehensive list of non-native vascular plants known from the Arctic, explore their geographic distribution, analyze the extent of naturalization and invasion among 23 subregions of the Arctic, and examine ...
    • Non-native vascular flora of the Arctic: Taxonomic richness, distribution and pathways 

      Wasowicz, Pawel; Sennikov, Alexander N.; Spellman, Katie; Carlson, Matthew; Gillespie, Lynn J.; Saarela, Jeffery M.; Seefeldt, Steven S.; Bennett, Bruce; Bay, Christian; Ickert-Bond, Stefanie; Väre, Henry (Peer reviewed, 2019)
      We present a comprehensive list of non-native vascular plants known from the Arctic, explore their geographic distribution, analyze the extent of naturalization and invasion among 23 subregions of the Arctic, and examine ...
    • Non-stationary Response of Tree Growth to Climate Trends Along the Arctic Margin 

      Hofgaard, Annika; Ols, Clementine; Drobyshev, Igor; Kirchhefer, Andreas J.; Sandberg, Staffan; Söderström, Lars (Journal article; Peer reviewed, 2018)
      Climate change modulates cold-marginal forest ecosystems through changing growth constraints. Understanding spatiotemporal variations in climate– growth relationships is essential to project forest ecosystem dynamics, and ...
    • 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 ...
    • Northward range expansion in spring‐staging barnacle geese is a response to climate change and population growth, mediated by individual experience 

      Tombre, Ingunn; Oudman, Thomas; Shimmings, Paul; Griffin, Larry; Prop, Larry (Peer reviewed, 2019)
      All long‐distance migrants must cope with changing environments, but species differ greatly in how they do so. In some species, individuals might be able to adjust by learning from individual experiences and by copying ...
    • Norway's Wolf Policy and the Bern Convention on European Wildlife: Avoiding the “Manifestly Absurd” 

      Trouwborst, Arie; Fleurke, Floor M.; Linnell, John Durrus (Journal article; Peer reviewed, 2017)
      In Norway, as in many other countries, a government-sponsored campaign against large carnivores was waged well into the twentieth century and eventually led to the disappearance of gray wolves (Canis lupus) from the country.1 ...
    • Novel microsatellite markers for Dalechampia scandens (Euphorbiaceae) and closely related taxa:application to studying a species complex 

      Falahati-Anbaran, Mohsen; Stenøien, Hans K.; Bolstad, Geir Hysing; Hansen, Thomas F; Pérez‐Barrales, Rocio; Armbruster, William Scott; Pelabon, Christophe (Journal article; Peer reviewed, 2016)
    • Novel tools and methods for designing and wrangling multifunctional, machine‑readable evidence synthesis databases 

      Haddaway, Neal R.; Gray, Charles T.; Grainger, Matthew (Peer reviewed; Journal article, 2021)
      One of the most important steps in the process of conducting a systematic review or map is data extraction and the production of a database of coding, metadata and study data. There are many ways to structure these data, ...
    • Nuclear and mitochondrial markers suggest new 

      Ferrer-Suay, Mar; Staverløkk, Arnstein; Selfa, Jesús; Pujade-Villar, Juli; Naik, Suresh; Ekrem, Torbjørn (Journal article, 2018)
      Due to their small size and smooth body, members of the figitid genus Alloxysta can be notoriously difficult to identify based on morphology alone. Moreover, several species are suspected to contain brachypterous variants ...
    • Numerical responses of saproxylic beetles to rapid increases in dead wood availability following geometrid moth outbreaks in sub-arctic mountain birch forest 

      Laksforsmo Vindstad, Ole Petter; Schultze, Sabrina; Jepsen, Jane Uhd; Biuw, Erik Martin; Kapari, Lauri Teemu; Sverdrup-Thygeson, Anne; Ims, Rolf Anker (Peer reviewed, 2014)
      Saproxylic insects play an important part in decomposing dead wood in healthy forest ecosystems, but little is known about their role in the aftermath of large-scale forest mortality caused by pest insect outbreaks. We ...
    • Nutritional state variations in a tropical seabird throughout its breeding season 

      Lerma, Miriam; Dehnhard, Nina; Castillo‑Guerrero, José Alfredo; Fernández, Guillermo (Peer reviewed; Journal article, 2022)
      Individual body condition is frequently used to explain differences in foraging and breeding ecology in seabirds. However, little is known about the covariations of body mass with the nutritional state of animals as measured ...
    • Nyfunn av hvit skogfrue Cephalanthera longifolia i Tysnes, Hordaland, samt litt om artens økologi og skjøtselsbehov 

      Fadnes, Per; Brandrud, Tor Erik (Journal article; Peer reviewed, 2016)
      Cephalanthera longifolia is redlisted as near threatened (NT) in the Norwegian Red list (2015), and is one oftotally 13 protected orchids in Norway. In South-Western Norway only a few localities with only a few plants of ...
    • Occupancy versus colonization–extinction models for projecting population trends at different spatial scales 

      Nordén, Jenni; Harrison, Philip J.; Mair, Louise; Siitonen, Juha; Lundström, Anders; Kindvall, Oskar; Snäll, Tord (Peer reviewed, 2020)
      Understanding spatiotemporal population trends and their drivers is a key aim in population ecology. We further need to be able to predict how the dynamics and sizes of populations are affected in the long term by changing ...
    • Occupancy-based monitoring of ungulate prey species in Thailand indicates population stability, but limited recovery 

      Phumanee, Worrapan; Steinmetz, Robert; Phoonjampa, Rungnapa; Bejraburnin, Thawatchai; Grainger, Matthew; Savini, Tomaso (Peer reviewed; Journal article, 2020)
      Longitudinal studies of wildlife are urgently needed in South-East Asia to understand population responses to the high poaching pressure that characterizes this region. We monitored population trends and habitat use of ...
    • Occurrence of the European eel in lakes in the northern part of its distribution area is limited to low-altitude coastal areas, likely due to topographical conditions 

      Foldvik, Anders; Ulvan, Eva M.; Thorstad, Eva B.; Hesthagen, Trygve (Peer reviewed, 2019)
      With the decline of the European eel, protection measures in all parts of the eel’s distribution area may be increasingly important. Norway has a vast coastline (58°–71°N), but the distribution of eel has been largely ...
    • Ocean climate and egg investment in the black-legged kittiwake Rissa tridactyla 

      Barrett, Robert T; Erikstad, Kjell E; Reiertsen, Tone (Journal article; Peer reviewed, 2017)
      Birds allocate substantial resources to their eggs during the laying period, resources also needed for other concurrent costly processes such as mate acquisition, nest building and site defence. Egg and clutch sizes may ...
    • 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)
    • Ocean-wide drivers of migration strategies and their influence on population breeding performance in a declining seabird 

      Fayet, Annette L.; Freeman, Robin; Anker-Nilssen, Tycho; Diamond, Antony; Erikstad, Kjell E; Fifield, Dave; Fitzsimmons, Michelle G; Hansen, Erpur Snær; Harris, Mike P.; Jessopp, Mark; Kouwenberg, Amy-Lee; Kress, Steve; Mowat, Stephen; Perrins, Chris M.; Petersen, Aevar; Petersen, Ib K.; Reiertsen, Tone; Robertson, Gregory J.; Shannon, Paula; Sigurðsson, Ingvar A.; Shoji, Akiko; Wanless, Sarah; Guilford, Tim (Journal article; Peer reviewed, 2017)
      Which factors shape animals’ migration movements across large geographical scales, how different migratory strategies emerge between populations, and how these may affect population dynamics are central questions in ...
    • Offshore oil rigs – a breeding refuge for Norwegian Black-legged Kittiwakes Rissa tridactyla? 

      Christensen-Dalsgaard, Signe; Langset, Magdalene; Anker-Nilssen, Tycho (Peer reviewed; Journal article, 2020)
      In recent decades, the population of Black-legged Kittiwake Rissa tridactyla has declined substantially in most parts of the North Atlantic. Concurrently, there has been an increased urbanisation of the species, with ...