Browsing Vitenskapelige artikler by Title

Now showing items 542-561 of 1416

    • Forage yield and quality estimation by means of UAV and hyperspectral imaging 

      Geipel, Jakob; Bakken, Anne Kjersti; Jørgensen, Marit; Korsaeth, Audun (Peer reviewed; Journal article, 2021-03-18)
      This study investigated the potential of in-season airborne hyperspectral imaging for the calibration of robust forage yield and quality estimation models. An unmanned aerial vehicle (UAV) and a hyperspectral imager were ...

    • Forest Carbon Gain and Loss in Protected Areas of Uganda: Implications to Carbon Benefits of Conservation 

      Gizachew, Belachew; Solberg, Svein; Puliti, Stefano (Journal article; Peer reviewed, 2018-11-16)
      Uganda designated 16% of its land as Protected Area (PA). The original goal was natural resources, habitat and biodiversity conservation. However, PAs also offer great potential for carbon conservation in the context of ...

    • Forest harvest effects on mercury in streams and biota in Norwegian boreal catchments 

      de Wit, Heleen; Granhus, Aksel; Lindholm, Markus; Kainz, Martin J.; Lin, Yan; Braaten, Hans Fredrik Veiteberg; Blaszczak, Joanna (Journal article; Peer reviewed, 2014-04-19)

    • Forest Parameter Prediction Using an Image-Based Point Cloud: A Comparison of Semi-ITC with ABA 

      Rahlf, Johannes; Breidenbach, Johannes; Solberg, Svein; Astrup, Rasmus Andreas (Journal article; Peer reviewed, 2015)
      Image-based point clouds obtained using aerial photogrammetry share many characteristics with point clouds obtained by airborne laser scanning (ALS). Two approaches have been used to predict forest parameters from ALS: the ...

    • Forest pasturing of livestock in Norway: effects on spruce regeneration 

      Hjeljord, Olav; Histøl, Trond; Wam, Hilde K (Journal article; Peer reviewed, 2014-05-07)
      Forest pasturing of free-roaming livestock is a common practice in many parts of the world, but knowledge on how it affects tree regeneration in boreal forests is lacking. We mapped tree density, livestock site use and ...

    • Forewarned is forearmed: harmonized approaches for early detection of potentially invasive pests and pathogens in sentinel plantings 

      Morales-Rodríguez, Carmen; Anslan, Sten; Auger-Rozenberg, Marie-Anne; Augustin, Sylvie; Baranchikov, Yuri; Bellahirech, Amani; Burokienė, Daiva; Čepukoit, Dovilė; Çota, Ejup; Davydenko, Kateryna; Lehtijärvi, H. Tuğba Doğmuş; Drenkhan, Rein; Drenkhan, Tiia; Eschen, René; Franić, Iva; Glavendekić, Milka; de Groot, Maarten; Kacprzyk, Magdalena; Kenis, Marc; Kirichenko, Natalia; Matsiakh, Iryna; Musolin, Dmitry L.; Nowakowska, Justyna A.; O’Hanlon, Richard; Prospero, Simone; Roques, Alain; Santini, Alberto; Talgø, Venche; Tedersoo, Leho; Uimari, Anne; Vannini, Andrea; Witzell, Johanna; Woodward, Steve; Zambounis, Antonios; Cleary, Michelle (Journal article; Peer reviewed, 2019-06-21)
      The number of invasive alien pest and pathogen species affecting ecosystem functioning, human health and economies has increased dramatically over the last decades. Discoveries of invasive pests and pathogens previously ...

    • Forsiktige forskere, engasjerte journalister 

      Dalen, Lars Sandved (Peer reviewed; Journal article, 2020-12-05)
      Enkeltforskere har snakket om sammenhengen mellom CO₂-utslipp og klimaoppvarming i 150 år. Fra 1950-tallet økte interessen for fenomenet. I hvilken grad var denne innsikten en del av offentlig norsk debatt, og hvordan ble ...

    • A Framework for Assessing Food System Governance in Six Urban and Peri-Urban Regions in Sub-saharan Africa 

      Chen, Qiuzhen; Knickel, Karlheinz; Tesfai, Mehreteab; Sumelius, John; Turinawe, Alice; Isoto, Rosemary Emegu; Medyna, Galyna (Peer reviewed; Journal article, 2021-11-30)
      An important goal across Sub-Saharan Africa (SSA), and globally, is to foster a healthy nutrition. A strengthening of the diversity, sustainability, resilience and connectivity of food systems is increasingly seen as a key ...

    • Frequent export of pig slurry for outside storage reduced methane but not ammonia emissions in cold and warm seasons 

      Ma, Chun; Guldberg, Lise Bonne; Hansen, Michael Jørgen; Feng, Lu; Petersen, Søren O. (Peer reviewed; Journal article, 2023-07-15)
      Manure management is a significant source of methane (CH4) and ammonia (NH3), and there is an urgent need for strategies to reduce these emissions. More frequent export of manure for outside storage can lower gaseous ...

    • Freshwater wetland plants respond nonlinearly to inundation over a sustained period 

      Zhao, Junbin; Malone, Sparkle L.; Staudhammer, Christina L.; Starr, Gregory; Hartmann, Henrik; Oberbauer, Steven. F. (Peer reviewed; Journal article, 2021-10-07)
      Premise Wetland plants regularly experience physiological stresses resulting from inundation; however, plant responses to the interacting effects of water level and inundation duration are not fully understood. Methods We ...

    • From Hazard to Risk 

      Sillmann, Jana; Russo, Simone; Sippel, Sebastian; Alnes, Kristina (Journal article; Peer reviewed, 2018-09-06)

    • From leaf to continent: The multi-scale distribution of an invasive cryptic pathogen complex on oak 

      Desprez-Loustau, Marie-Laure; Massot, Marie; Toïgo, Maude; Fort, Tania; Kaya, Ayse Gülden Aday; Boberg, Johanna; Braun, Uwe; Capdevielle, Xavier; Cech, Thomas; Chandelier, Anne; Christova, Petya; Corcobado, Tamara; Dogmus, Tugba; Dutech, Cyril; Fabreguettes, Olivier; Faivre d'Arcier, Julie; Gross, Andrin; Jung, Marilia Horta; Iturritxa, Eugenia; Jung, Thomas; Junker, Corina; Kiss, Levente; Kostov, Kaloyan; Lehtijarvi, Asko; Lyubenova, Aneta; Marçais, Benoit; Oliva, Jonas; Oskay, Funda; Pastirčák, Martin; Pastircakova, Katarína; Piou, Dominique; Saint-Jean, Gilles; Sallafranque, Arnaud; Slavov, Slavtcho; Stenlid, Jan; Talgø, Venche; Takamatsu, Susumu; Tack, Ayco JM. (Journal article; Peer reviewed, 2018-09-12)
      The spatial distribution and niche differentiation of three closely related species (Erysiphe alphitoides, Erysiphe quercicola and Erysiphe hypophylla) causing oak powdery mildew was studied at scales ranging from the ...

    • Fumonisins in African Countries 

      Yli-Mattila, Tapani; Sundheim, Leif (Peer reviewed; Journal article, 2022-06-19)
      Maize and other cereals are the commodities most contaminated with fumonisins. The maize acreage is increasing in Africa, and the maize harvest provides important foods for humans and feeds for domestic animals throughout ...

    • Functional characterization of Pseudoidium neolycopersici photolyase reveals mechanisms behind the efficacy of nighttime UV on powdery mildew suppression 

      Pathak, Ranjana; Ergon, Åshild; Stensvand, Arne; Gislerød, Hans Ragnar; Solhaug, Knut Asbjørn; Cadle-Davidson, Lance; Suthaparan, Aruppillai (Peer reviewed; Journal article, 2020-05-29)
      Powdery mildews can be controlled by brief exposure to ultraviolet (UV) radiation with devastating effect on their developmental stages including conidia germination. The treatment effect can be impaired by subsequent ...

    • Functional diversity and invasive species influence soil fertility in experimental grasslands 

      Teixeira, Leonardo H.; Yannelli, Florencia A.; Ganade, Gislene; Kollmann, Johannes (Peer reviewed; Journal article, 2020-01-01)
      Ecosystem properties can be positively affected by plant functional diversity and compromised by invasive alien plants. We performed a community assembly study in mesocosms manipulating different functional diversity levels ...

    • Functional growth analysis of ‘Sonata’ strawberry plants grown under controlled temperature and daylength conditions 

      Sønsteby, Anita; Solhaug, Knut Asbjørn; Heide, Ola M. (Journal article; Peer reviewed, 2016-08-17)
      In order to investigate the relationship between environmental conditions and vegetative growth and reproductive development in the strawberry, freshly rooted runner plants of the cultivar ‘Sonata’ were grown in a phytotron ...

    • Functional phenomics for improved climate resilience in Nordic agriculture 

      Roitsch, Thomas; Himanen, Kristiina; Chawade, Aakash; Jaakola, Laura; Nehe, Ajit; Alexandersson, Erik (Peer reviewed; Journal article, 2022-09-03)
      The five Nordic countries span the most northern region for field cultivation in the world. This presents challenges per se, with short growing seasons, long days, and a need for frost tolerance. Climate change has ...

    • Functionality of Embryo Sacs in Pear Cultivars ‘Ingeborg’ and ‘Celina’ as Related to Fruit Set under Nordic Climate 

      Cerovic, Radosav; Akšic, Milica Fotiric; Dordevic, Milena; Meland, Mekjell (Peer reviewed; Journal article, 2020-12-05)
      Since the European pear (Pyrus communis L.) is a self-incompatible fruit species, synchrony and compatibility between female parts of the mother plant and male gametes from the pollen donor must be fulfilled. Besides ...

    • Fundamental resource specialization of herbivorous butterflies decreases towards lower latitudes 

      Nakadai, Ryosuke; Nyman, Tommi; Hashimoto, Koya; Iwasaki, Takaya; Valtonen, Anu (Peer reviewed; Journal article, 2021-08-17)
      Aim It is generally assumed that the degree of resource specialization in herbivorous insects increases towards lower latitudes. However, latitudinal patterns in herbivore diet breadth at large spatial scales remain poorly ...

    • Fungal associates of the tree-killing bark beetle, Ips typographus, vary in virulence, ability to degrade conifer phenolics and influence bark beetle tunneling behavior 

      Zhao, Tao; Kandasamy, Dineshkumar; Krokene, Paal; Chen, Jingyuan; Gershenzon, Jonathan; Hammerbacher, Almuth (Journal article; Peer reviewed, 2018-07-20)
      The bark beetle Ips typographus carries numerous fungi that could be assisting the beetle in colonizing live Norway spruce (Picea abies) trees. Phenolic defenses in spruce phloem are degraded by the beetle's major tree-killing ...