Browsing Institutt for naturhistorie by Title

Now showing items 681-700 of 1214

    • Long-distance plant dispersal to North Atlantic islands: colonization routes and founder effect 

      Alsos, Inger Greve; Ehrich, Dorothee; Eidesen, Pernille Bronken; Solstad, Heidi Merethe; Westergaard, Kristine Bakke; Schonswetter, Peter; Tribsch, Andreas; Birkeland, Siri; Elven, Reidar; Brochmann, Christian (Journal article; Peer reviewed, 2015)
      Long-distance dispersal (LDD) processes influence the founder effect on islands.We use genetic data for 25 Atlantic species and similarities among regional floras to analyse colonization, and test whether the genetic founder ...

    • Long-distance plant dispersal to North Atlantic islands:colonization routes and founder effect 

      Alsos, Inger Greve; Ehrich, Dorothee; Eidesen, Pernille Bronken; Solstad, Heidi Merethe; Westergaard, Kristine Bakke; Schonswetter, Peter; Tribsch, Andreas; Birkeland, Siri; Elven, Reidar; Brochmann, Christian (Journal article; Peer reviewed, 2015)
      Long-distance dispersal (LDD) processes influence the founder effect on islands.We use genetic data for 25 Atlantic species and similarities among regional floras to analyse colonization, and test whether the genetic ...

    • Long-term changes in northern large-herbivore communities reveal differential rewilding rates in space and time 

      Speed, James David Mervyn; Austrheim, Gunnar; Kolstad, Anders Lorentzen; Solberg, Erling Johan (Journal article; Peer reviewed, 2019)
      Herbivores have important impacts on ecological and ecosystem dynamics. Population density and species composition are both important determinants of these impacts. Large herbivore communities are shifting in many parts ...

    • Long-term effects of nutrient enrichment controlling plant species and functional composition in a boreal rich fen 

      Øien, Dag-Inge; Pedersen, Bård; Kozub, Łukasz; Goldstein, Klara; Wilk, Mateusz (Journal article; Peer reviewed, 2018)
      Questions: How does long-term increase in nutrient availability affect species composition, species diversity and functional composition in boreal rich fens, and how does this differ from short-term effects? What are the ...

    • Long-Term Increase in Aboveground Carbon Stocks Following Exclusion of Grazers and Forest Establishment in an Alpine Ecosystem 

      Speed, James David Mervyn; Martinsen, Vegard; Mysterud, Atle; Mulder, Jan; Holand, Øystein; Austrheim, Gunnar (Journal article; Peer reviewed, 2014)
      Ecosystem stores of carbon are a key component in the global carbon cycle. Many studies have examined the impact of climate change on ecosystem carbon storage, but few have investigated the impact of land-use change and ...

    • Long-term land-use and landscape dynamics in Budalen, central Norway 

      Solem, Thyra Lise; Aune, Egil Ingvar; Daverdin, Marc; Hassel, Kristian; Sjøgren, Per Johan E; Stenvik, Lars; Tretvik, Aud Mikkelsen; Øien, Dag-Inge; Austrheim, Gunnar (Journal article; Peer reviewed, 2012)
      Humans have used resources in mountain landscapes for thousands of years, but the intensity and continuity of different land uses and the corresponding landscape changes are not well understood. This study examined long-term ...

    • Long-term responses of benthic invertebrates to rotenone treatment 

      Kjærstad, Gaute; Arnekleiv, Jo Vegar; Velle, Gaute; Finstad, Anders Gravbrøt (Peer reviewed; Journal article, 2021)
      Biological invasions are regarded as one of the largest threats to native biodiversity. The eradication of alien invasive fish or parasites by culling of hosts is a controversial conservation strategy, particularly when ...

    • Lophozia lantratovae Bakalin new to northern Europe 

      Söderström, Lars; Hassel, Kristian; Prestø, Tommy (Journal article; Peer reviewed, 2022)

    • Low Prevalence of Lactase Persistence in Bronze Age Europe Indicates Ongoing Strong Selection over the Last 3,000 Years 

      Burger, Joachim; Link, Vivian; Blöcher, Jens; Schulz, Anna; Sell, Christian; Pochon, Zoé; Diekmann, Yoan; Zegarac, Aleksandra; Hofmanová, Zuzana; Winkelbach, Laura; Reyna-Blanco, Carlos S.; Bieker, Vanessa Carina; Orschiedt, Jörg; Brinker, Ute; Scheu, Amelie; Leuenberger, Christoph; Bertino, Thomas S.; Bollongino, Ruth; Lidke, Gundula; Stefanovic, Sofija; Jantzen, Detlef; Kaiser, Elke; Terberger, Thomas; Thomas, Mark G.; Veeramah, Krishna R.; Wegmann, Daniel (Peer reviewed; Journal article, 2020)
      Lactase persistence (LP), the continued expression of lactase into adulthood, is the most strongly selected single gene trait over the last 10,000 years in multiple human populations. It has been posited that the primary ...

    • Macroalgal browsing on a heavily degraded, urbanized equatorial reef system 

      Bauman, Andrew G; Hoey, Andrew; Dunshea, Glenn; Feary, David A.; Low, Jeffery; Todd, Peter A. (Peer reviewed; Journal article, 2017)
      The removal of macroalgal biomass is critical to the health of coral reef ecosystems. Previous studies on relatively intact reefs with diverse and abundant fish communities have quantified rapid removal of macroalgae by ...

    • Mamiellophyceae shift in seasonal predominance in the Baltic Sea 

      Majaneva, Markus; Enberg, Sara; Autio, Riitta; Blomster, Jaanika; Rintala, Janne-Markus (Journal article; Peer reviewed, 2019)
      The green algae Mamiellophyceae are a group of marine picoeukaryotes. We studied the succession of Mamiellophyceae in the Baltic Sea water column and ice from autumn to summer, using the hypervariable V4 region of the 18S ...

    • Mammal mitogenomics from invertebrate-derived DNA 

      Danabalan, Renita; Merkel, Kevin; Bærholm Schnell, Ida; Arandjelovic, Mimi; Boesch, Christophe; Brazzola, Gregory; Dieguez, Paula; Dupain, Jef; Kambale-Vyalengerera, Magloire; Kühl, Hjalmar S.; Hoffmann, Constanze; Lapuente, Juan; Ngoc Thinh, Van; Zimmermann, Fee; Leendertz, Fabian H.; Gilbert, Marcus Thomas Pius; Roos, Christian; Mazzoni, Camila; Gogarten, Jan F.; Calvignac-Spencer, Sébastien (Journal article; Peer reviewed, 2023)

    • Mapping and Estimating Aboveground Biomass in an Alpine Treeline Ecotone under Model-Based Inference 

      Mukhopadhyay, Ritwika; Næsset, Erik; Gobakken, Terje; Mienna, Ida Marielle; Candelas Bielza, Jaime; Austrheim, Gunnar; Persson, Henrik Jan; Ørka, Hans Ole; Roald, Bjørn-Eirik; Bollandsås, Ole Martin (Peer reviewed; Journal article, 2023)
      Due to climate change, treelines are moving to higher elevations and latitudes. The estimation of biomass of trees and shrubs advancing into alpine areas is necessary for carbon reporting. Remotely sensed (RS) data have ...

    • Mapping of marine benthic invertebrates in the Oslofjord and the Skagerrak: sampling data of museum collections from 1950–1955 and from recent investigations 

      Oug, Eivind; Christiansen, Marit Ellen; Dobbe, Kristine; Rønning, Ann-Helen; Bakken, Torkild; Kongsrud, Jon Anders (Journal article; Peer reviewed, 2015)
      Data from large sampling programmes for the mapping of marine invertebrates in the Oslofjord, Norway, and the Skagerrak, spanning more than six decades, are compiled and digitized to provide easy access in modern data ...

    • Marine depth use of sea trout Salmo trutta in fjord areas of Central Norway 

      Eldøy, Sindre Håvarstein; Davidsen, Jan Grimsrud; Thorstad, Eva Bonsak; Whoriskey, Frederick G.; Aarestrup, Kim; Næsje, Tor; Rønning, Lars; Sjursen, Aslak Darre; Rikardsen, Audun H.; Arnekleiv, Jo Vegar (Journal article; Peer reviewed, 2017)
      The vertical behaviour of 44 veteran sea trout Salmo trutta (275–580 mm) in different marine fjord habitats (estuary, pelagic, near shore with and without steep cliffs) was documented during May–February by acoustic ...

    • Marine habitat use and feeding ecology of introduced anadromous brown trout at the colonization front of the sub-Antarctic Kerguelen archipelago 

      Davidsen, Jan Grimsrud; Bordeleau, Xavier; Eldøy, Sindre Håvarstein; Whoriskey, Frederick G.; Power, Michael John; Crossin, Glenn T; Buhariwalla, Colin; Gaudin, Philippe (Journal article; Peer reviewed, 2021)
      In 1954, brown trout were introduced to the Kerguelen archipelago (49°S, 70°E), a pristine, sub-Antarctic environment previously devoid of native freshwater fishes. Trout began spreading rapidly via coastal waters to ...

    • Marine migration and habitat use of anadromous brown trout Salmo trutta 

      Eldøy, Sindre Håvarstein; Davidsen, Jan Grimsrud; Thorstad, Eva Bonsak; Whoriskey, F.; Aarestrup, K.; Næsje, Tor; Rønning, Lars; Sjursen, Aslak Darre; Rikardsen, Audun H.; Arnekleiv, Jo Vegar (Journal article, 2015)
      The biology and ecology of anadromous brown trout (Salmo trutta) at sea is poorly understood. This study provided information on spatial and temporal distribution of sea trout in the ocean. The behaviour of 115 individuals ...

    • Marine trophic niche-use and life history diversity among Arctic charr Salvelinus alpinus in southwestern Greenland 

      Davidsen, Jan Grimsrud; Power, Michael; Knudsen, Rune; Sjursen, Aslak Darre; Rønning, Lars; Kjærstad, Gaute; Arnekleiv, Jo Vegar (Journal article; Peer reviewed, 2020)
      Life history strategies and potential marine niche use of Arctic charr Salvelinus alpinus (n = 237, 84–652 mm, total body length, LT) were determined during the ice‐free season (2012) at three different watercourses in ...

    • Marine vandringer og områdebruk hos sjøørret og sjørøye i Tosenfjorden 

      Davidsen, Jan Grimsrud; Eldøy, Sindre Håvarstein; Sjursen, Aslak Darre; Rønning, Lars; Bordeleau, Xavier; Daverdin, Marc; Bårdsen, Marthe Tangvold; Whoriskey, Frederick G.; Koksvik, Jan Ivar (NTNU Vitenskapsmuseet naturhistorisk rapport;, Research report, 2018)

    • Maximizing citizen scientists’ contribution to automated species recognition 

      Koch, Wouter; Hogeweg, Laurens; Nilsen, Erlend Birkeland; Finstad, Anders Gravbrøt (Peer reviewed; Journal article, 2022)
      Technological advances and data availability have enabled artificial intelligence-driven tools that can increasingly successfully assist in identifying species from images. Especially within citizen science, an emerging ...