Blar i NTNU Open på forfatter "Finstad, Anders Gravbrøt"

Viser treff 1-20 av 48

    • Alien plants, animals, fungi and algae in Norway: an inventory of neobiota 

      Sandvik, Hanno; Dolmen, Dag; Elven, Reidar; Falkenhaug, Tone; Forsgren, Elisabet; Hansen, Haakon; Hassel, Kristian; Husa, Vivian; Kjærstad, Gaute; Ødegaard, Frode; Pedersen, Hans Christian; Solheim, Halvor; Stokke, Bård Gunnar; Åsen, Per Arvid; Åström, Sandra Charlotte Helene; Brandrud, Tor Erik; Elven, Hallvard; Endrestøl, Anders; Finstad, Anders Gravbrøt; Fredriksen, Stein; Gammelmo, Øivind; Gjershaug, Jan Ove; Gulliksen, Bjørn; Hamnes, Inger Sofie; Hatteland, Bjørn Arild; Hegre, Hanne; Hesthagen, Trygve H.; Jelmert, Anders; Jensen, Thomas Correll; Johnsen, Stein Ivar; Karlsbakk, Egil; Magnusson, Christer; Nedreaas, Kjell Harald; Nordén, Björn; Oug, Eivind; Pedersen, Oddvar; Pedersen, Per Anker; Sjøtun, Kjersti; Skei, Jon Kristian; Solstad, Heidi; Sundheim, Leif; Swenson, Jon; Syvertsen, Per Ole; Talgø, Venche; Vandvik, Vigdis; Westergaard, Kristine Bakke; Wienerroither, Rupert; Ytrehus, Bjørnar; Hilmo, Olga; Henriksen, Snorre; Gederaas, Lisbeth (Journal article; Peer reviewed, 2019)
      We present the results of an inventory and status assessment of alien species in Norway. The inventory covered all known multicellular neobiota, 2496 in total, 1039 of which were classified as naturalised. The latter ...

    • Alien species in Norway: results from quantitative ecological impact assessments 

      Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article, 2020)
      1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ...

    • Amphibian recovery after a decrease in acidic precipitation 

      Dolmen, Dag; Finstad, Anders Gravbrøt; Skei, John K. (Journal article, 2017)
      We here report the first sign of amphibian recovery after a strong decline due to acidic precipitation over many decades and peaking around 1980–90. In 2010, the pH level of ponds and small lakes in two heavily acidified ...

    • Beyond ecological opportunity: prey diversity rather than abundance shapes predator niche variation 

      Sanchez-Hernandez, Javier; Finstad, Anders Gravbrøt; Arnekleiv, Jo Vegar; Kjærstad, Gaute; Amundsen, Per-Arne (Peer reviewed; Journal article, 2021)
      Ecological opportunity (i.e. the diversity of available resources) has a pivotal role in shaping niche variation and trophic specialisation of animals. However, ecological opportunity can be described with regard to both ...

    • Catchment vegetation and temperature mediating trophic interactions and production in plankton communities 

      Finstad, Anders Gravbrøt; Nilsen, Erlend Birkeland; Hendrichsen, Ditte Katrine; Schmidt, Niels M. (Journal article; Peer reviewed, 2017)
      Climatic factors influence the interactions among trophic levels in an ecosystem in multiple ways. However, whereas most studies focus on single factors in isolation, mainly due to interrelation and correlation among drivers ...

    • Clavis: An open and versatile identification key format 

      Koch, Wouter; Elven, Hallvard; Finstad, Anders Gravbrøt (Journal article; Peer reviewed, 2022)

    • Community structure affects trophic ontogeny in a predatory fish 

      Sanchez-Hernandez, Javier; Eloranta, Antti; Finstad, Anders Gravbrøt; Amundsen, Per-Arne (Journal article; Peer reviewed, 2017)
      While most studies have focused on the timing and nature of ontogenetic niche shifts, information is scarce about the effects of community structure on trophic ontogeny of top predators. We investigated how community ...

    • Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data 

      Speed, James David Mervyn; Bendiksby, Mika; Finstad, Anders Gravbrøt; Hassel, Kristian; Kolstad, Anders Lorentzen; Prestø, Tommy (Journal article; Peer reviewed, 2018)
      Species occurrence data records the location and time of an encounter with a species, and is valuable for many aspects of ecological and evolutionary analyses. A key distinction within species occurrence data is between ...

    • Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data 

      Speed, James David Mervyn; Bendiksby, Mika; Finstad, Anders Gravbrøt; Hassel, Kristian; Kolstad, Anders Lorentzen; Prestø, Tommy (Journal article; Peer reviewed, 2018)
      Species occurrence data records the location and time of an encounter with a species, and is valuable for many aspects of ecological and evolutionary analyses. A key distinction within species occurrence data is between ...

    • DNA Metabarcoding of Preservative Ethanol Reveals Changes in Invertebrate Community Composition Following Rotenone Treatment 

      Kjærstad, Gaute; Majaneva, Markus; Falahati-Anbaran, Mohsen; Topstad, Lasse; Finstad, Anders Gravbrøt; Arnekleiv, Jo Vegar; Ekrem, Torbjørn (Peer reviewed; Journal article, 2022)
      The botanical compound rotenone is extensively used to eradicate populations and reduce the negative impacts of freshwater invasive animals. The method is controversial as non-target organisms often are negatively affected, ...

    • Drivers of diet patterns in a globally distributed freshwater fish species 

      Javier, Sánchez-Hernández; Finstad, Anders Gravbrøt; Arnekleiv, Jo Vegar; Kjærstad, Gaute; Amundsen, Per-Arne (Journal article; Peer reviewed, 2018)
      We analysed data of a globally distributed model organism (brown trout) in an attempt to understand relationships among biogeography, prey communities and climate on diet composition at regional spatial scales (Scandinavia), ...

    • The effects of nutritional state, sex and body size on the marine migration behaviour of sea trout 

      Eldøy, Sindre Håvarstein; Bordeleau, Xavier; Lawrence, M. J.; Thorstad, Eva B.; Finstad, Anders Gravbrøt; Whoriskey, Frederick G.; Crossin, Glenn T; Cooke, Steven J.; Aarestrup, Kim; Rønning, Lars; Sjursen, Aslak Darre; Davidsen, Jan Grimsrud (Peer reviewed; Journal article, 2021)
      The sea trout (anadromous brown trout Salmo trutta) displays extensive among-individual variation in marine migration behaviour. We studied the migration behaviour of 286 sea trout (27-89 cm) tagged with acoustic transmitters ...

    • The eradication of invasive species using rotenone and its impact on freshwater macroinvertebrates 

      Kjærstad, Gaute (Doctoral theses at NTNU;2022:97, Doctoral thesis, 2022)
      Norsk sammendrag Hvordan påvirkes bunndyr når fremmede arter utryddes med rotenon? Fremmede arter er arter som tilsiktet eller utilsiktet spres av mennesker til nye områder der de ikke naturlig hører hjemme. Noen av ...

    • Ferskvandsfiskenes utbredelse og indvandring i Norge med et tillæg om krebsen – 100 år i 2018! 

      Sandlund, Odd Terje; Finstad, Anders Gravbrøt; Hesthagen, Trygve H. (Journal article; Peer reviewed, 2018)
      I 2018 er det 100 år siden et grunnleggende arbeid om innvandring og forekomst av ferskvannsfiskene våre ble utgitt. Hartvig Huitfeldt-Kaas la gjennom banebrytende forskning et solid grunnlag for mange av de temaene som ...

    • Forecasting the future establishment of invasive alien freshwater fish species 

      Perrin, Sam; Bærum, Kim Magnus; Helland, Ingeborg Palm; Finstad, Anders Gravbrøt (Peer reviewed; Journal article, 2021)
      1. Invasive alien species constitute a major threat to the world’s freshwater ecosystems. Human translocations as well as rising temperatures have allowed freshwater fish species to expand their distribution into novel ...

    • From greening to browning: Catchment vegetation development and reduced S-deposition promote organic carbon load on decadal time scales in Nordic lakes 

      Finstad, Anders Gravbrøt; Andersen, Tom; Larsen, Søren; Tominaga, Koji; Blumentrath, Stefan; de Wit, Heleen; Tømmervik, Hans; Hessen, Dag Olav (Journal article; Peer reviewed, 2016)
      Increased concentrations of dissolved organic carbon (DOC), often labelled “browning”, is a current trend in northern, particularly boreal, freshwaters. The browning has been attributed to the recent reduction in sulphate ...

    • Generic Ecological Impact Assessment of Alien Species (GEIAA): the third generation of assessments in Norway 

      Sandvik, Hanno; Hilmo, Olga; Finstad, Anders Gravbrøt; Hegre, Hanne; Moen, Toril Loennechen; Rafoss, Trond; Skarpaas, Olav; Elven, Reidar; Sandmark, Helge; Gederaas, Lisbeth (Journal article; Peer reviewed, 2019)
      The Generic Ecological Impact Assessment of Alien Species (GEIAA) is described. It comprises a set of criteria and an assessment procedure. The set of criteria consists of three criteria that quantify invasion potential, ...

    • Historical abundance and spatial distributions of spawners determine juvenile habitat accessibility in salmon: implications for population dynamics and management targets 

      Finstad, Anders Gravbrøt; Sættem, Leif Magnus; Einum, Sigurd (Journal article; Peer reviewed, 2013)
      Spatial distribution of spawning may have important ramifications for population dynamics in species where early life stages suffer from low mobility and high density-dependent mortality. Here, we use time series of spatial ...

    • Holocene extinctions of a top predator—Effects of time, habitat area and habitat subdivision 

      Englund, Göran; Öhlund, Gunnar; Olajos, Fredrik; Finstad, Anders Gravbrøt; Bellard, Celine; Hugueny, Bernard (Peer reviewed; Journal article, 2020)
      Loss of habitat and changes in the spatial configuration of habitats are major drivers of species extinctions, but the responses to these drivers differ between organisms. To advance theory on how extinction risk from ...

    • Hydropower impacts on reservoir fish populations are modified by environmental variation 

      Eloranta, Antti; Finstad, Anders Gravbrøt; Helland, Ingeborg Palm; Ugedal, Ola; Power, Michael (Journal article; Peer reviewed, 2018)
      Global transition towards renewable energy production has increased the demand for newand more flexible hydropower operations. Beforemanagement and stakeholders can make informed choices on potential mitigations, it is ...