Blar i Vitenskapelige artikler på emneord "VDP::Landbruks- og Fiskerifag: 900::Landbruksfag: 910::Skogbruk: 915"

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    • An enhanced forest classification scheme for modeling vegetation–climate interactions based on national forest inventory data 

      Majasalmi, Titta; Eisner, Stephanie; Astrup, Rasmus Andreas; Fridman, Jonas; Bright, Ryan M. (Journal article; Peer reviewed, 2018-01-18)
      Forest management affects the distribution of tree species and the age class of a forest, shaping its overall structure and functioning and in turn the surface–atmosphere exchanges of mass, energy, and momentum. In order ...

    • Bark Beetle Population Dynamics in the Anthropocene: Challenges and Solutions 

      Biedermann, Peter H.W.; Müller, Jörg; Grégoire, Jean-Claude; Gruppe, Axel; Hagge, Jonas; Hammerbacher, Almuth; Hofstetter, Richard W.; Kandasamy, Dineshkumar; Kolarik, Miroslav; Kostovcik, Martin; Krokene, Paal; Sallé, Aurélien; Six, Diana L.; Turrini, Tabea; Vanderpool, Dan; Wingfield, Michael J.; Bässler, Claus (Journal article; Peer reviewed, 2019)
      Tree-killing bark beetles are the most economically important insects in conifer forests worldwide. However, despite >200 years of research, the drivers of population eruptions and crashes are still not fully understood ...

    • Complex responses of global insect pests to climate warming 

      Lehmann, Philipp; Ammunet, Tea; Barton, Madeleine; Battisti, Andrea; Eigenbrode, Sanford D.; Jepsen, Jane Uhd; Kalinkat, Gregor; Neuvonen, Seppo; Niemela, Pekka; Terblanche, John s.; Økland, Bjørn; Björkman, Christer (Peer reviewed; Journal article, 2020-02-03)
      Although it is well known that insects are sensitive to temperature, how they will be affected by ongoing global warming remains uncertain because these responses are multifaceted and ecologically complex. We reviewed the ...

    • Convergent evolution of semiochemicals across Kingdoms: bark beetles and their fungal symbionts 

      Zhao, Tao; Ganji, Suresh; Schiebe, Christian; Bohman, Björn; Weinstein, Philip; Krokene, Paal; Borg-Karlson, Anna-Karin; Unelius, C. Rikard (Journal article; Peer reviewed, 2019-02-15)
      Convergent evolution of semiochemical use in organisms from different Kingdoms is a rarely described phenomenon. Tree-killing bark beetles vector numerous symbiotic blue-stain fungi that help the beetles colonize healthy ...

    • Cyclic small rodents in boreal forests and the effects of even-aged forest management: Patterns and predictions from a long-term study in southeastern Norway 

      Wegge, Per; Rolstad, Jørund (Journal article; Peer reviewed, 2018-04-12)
      Small mammals, especially microtine rodents, play an important role in the dynamics of boreal forest ecosystems. Even-aged forest management, in which old, semi-natural forests are converted to clear-cuts and culturally ...

    • Deforestation and Forest Degradation as an Environmental Behavior: Unpacking Realities Shaping Community Actions 

      Duguma, Lalisa A.; Atela, Joanes; Minang, Peter A.; Ayana, Alemayehu N.; Gizachew, Belachew; Nzyoka, Judith M.; Bernard, Florence (Journal article; Peer reviewed, 2019-01-29)
      Deforestation and forest degradation (D&D) in the tropics have continued unabated and are posing serious threats to forests and the livelihoods of those who depend on forests and forest resources. Smallholder farmers are ...

    • 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 ...

    • The GenTree Dendroecological Collection, tree-ring and wood density data from seven tree species across Europe 

      Martínez-Sancho, Elisabet; Slámová, Lenka; Morganti, Sandro; Grefen, Claudio; Carvalho, Barbara; Dauphin, Benjamin; Rellstab, Christian; Gugerli, Felix; Opgenoorth, Lars; Heer, Katrin; Knutzen, Florian; Arx, Georg von; Valladares, Fernando; Cavers, Stephen; Fady, Bruno; Alía, Ricardo; Aravanopoulos, Filippos; Avanzi, Camilla; Bagnoli, Francesca; Barbas, Evangelos; Bastien, Catherine; Benavides, Raquel; Bernier, Frédéric; Bodineau, Guillaume; Bastias, Cristina C.; Charpentier, Jean-paul; Climent, José M.; Corréard, Marianne; Courdier, Florence; Danusevičius, Darius; Farsakoglou, Anna-Maria; Barrio, José M. García del; Gilg, Olivier; González-Martínez, Santiago C.; Gray, Alan; Hartleitner, Christoph; Hurel, Agathe; Jouineau, Arnaud; Kärkkäinen, Katri; Kujala, Sonja T.; Labriola, Mariaceleste; Lascoux, Martin; Lefebvre, Marlène; Lejeune, Vincent; Le-Provost, Grégoire; Liesebach, Mirko; Malliarou, Ermioni; Mariotte, Nicolas; Myking, Tor; Tollefsrud, Mari Mette (Peer reviewed; Journal article, 2020-01-02)
      The dataset presented here was collected by the GenTree project (EU-Horizon 2020), which aims to improve the use of forest genetic resources across Europe by better understanding how trees adapt to their local environment. ...

    • A global view of aspen: Conservation science for widespread keystone systems 

      Rogers, Paul C.; Pinno, Bradley D.; Sebesta, Jan; Albrectsen, Benedicte R.; Li, Guoqing; Ivanova, Natalya; Kusbach, Antonín; Kuuluvainen, Timo; Landhäusser, Simon M.; Liu, Hongyan; Myking, Tor; Pulkkinen, Pertti; Wen, Zhongming; Kulakowski, Dominik (Peer reviewed; Journal article, 2019-10-31)
      Across the northern hemisphere, six species of aspen (Populus spp.) play a disproportionately important role in promoting biodiversity, sequestering carbon, limiting forest disturbances, and providing other ecosystem ...

    • Harmonisation of stem volume estimates in European National Forest Inventories 

      Gschwantner, Thomas; Alberdi, Iciar; Balázs, András; Bauwens, Sébastien; Bender, Susann; Borota, Dragan; Bosela, Michal; Bouriaud, Olivier; Cañellas, Isabel; Donis, Jānis; Freudenschuß, Alexandra; Hervé, Jean-Christophe; Hladnik, David; Jansons, Jurģis; Kolozs, László; Korhonen, Kari T.; Kucera, Milos; Kulbokas, Gintaras; Kuliešis, Andrius; Lanz, Adrian; Lejeune, Philippe; Lind, Torgny; Marin, Gheorghe; Morneau, François; Nagy, Dóra; Nord-Larsen, Thomas; Nunes, Leónia; Pantić, Damjan; Paulo, Joana A.; Pikula, Tomas; Redmond, John; Rego, Francisco Castro; Riedel, Thomas; Saint-André, Laurent; Šebeň, Vladimír; Sims, Allan; Skudnik, Mitja; Solti, György; Tomter, Stein Michael; Twomey, Mark; Westerlund, Bertil; Zell, Jürgen (Journal article; Peer reviewed, 2019-02-28)
      Key message Volume predictions of sample trees are basic inputs for essential National Forest Inventory (NFI) estimates. The predicted volumes are rarely comparable among European NFIs because of country-specific dbh-thresholds ...

    • High-pruning of European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L.): work efficiency for target pruning as a function of tree species, pruning height, branch characteristics, pole saw type and operator 

      Skovsgaard, Jens Peter; Markmann, Jacob Johan Mohr; Attocchi, Giulia; Talbot, Bruce (Journal article; Peer reviewed, 2018-02-27)
      The objective of this study was to establish an operational model of productive work time per tree (work efficiency) for high-pruning of young European beech and pedunculate oak depending on tree species, pruning height, ...

    • Imprints of management history on hemiboreal forest ecosystems in the Baltic States 

      Jogiste, Kalev; Frelich, Lee E.; Laarmann, Diana; Vodde, Floortje; Baders, Endijs; Donis, Janis; Jansons, Aris; Kangur, Ahto; Korjus, Henn; Köster, Kajar; Kusmin, Jürgen; Kuuluvainen, Timo; Marozas, Vitas; Metslaid, Marek; Metslaid, Sandra; Polyachenko, Olga; Poska, Anneli; Rebane, Sille; Stanturf, John A. (Journal article; Peer reviewed, 2018-11-15)
      In the Baltic States region, anthropogenic disturbances at different temporal and spatial scales mostly determine dynamics and development phases of forest ecosystems. We reviewed the state and condition of hemiboreal ...

    • Inferring Surface Albedo Prediction Error Linked to Forest Structure at High Latitudes 

      Bright, Ryan M.; Eisner, Stephanie; Lund, Marianne Tronstad; Majasalmi, Titta; Myhre, Gunnar; Astrup, Rasmus Andreas (Journal article; Peer reviewed, 2018-05-17)
      Predicting the surface albedo of a forest of a given species composition or plant functional type is complicated by the wide range of structural attributes it may display. Accurate characterizations of forest structure are ...

    • Interferometric SAR DEMs for Forest Change in Uganda 2000–2012 

      Solberg, Svein; May, Johannes; Bogren, Wiley Steven; Breidenbach, Johannes; Torp, Torfinn; Gizachew, Belachew (Journal article; Peer reviewed, 2018-02-02)
      Monitoring changes in forest height, biomass and carbon stock is important for understanding the drivers of forest change, clarifying the geography and magnitude of the fluxes of the global carbon budget and for providing ...

    • Multiplex real-time PCR assays for the detection and identification of Heterobasidion species attacking conifers in Europe 

      Ioos, R.; Chrétien, P.; Perrault, J.; Jeandel, C.; Dutech, C.; Gonthier, P.; Sillo, F.; Hietala, Ari Mikko; Solheim, Halvor; Hubert, J. (Peer reviewed; Journal article, 2019-07-11)
      Four species of the destructive forest pathogen Heterobasidion annosum sensu lato (s.l.) are present in Europe: H. annosum sensu stricto (s.s.), H. abietinum and H. parviporum are native species, while H. irregulare is a ...

    • Predicting delay factors when chipping wood at forest roadside landings 

      Belbo, Helmer; Vivestad, Henriette (Journal article; Peer reviewed, 2018-05-15)
      Chipping of bulky biomass assortments at roadside landings is a common and costly step in the biomass-to-energy supply chain. This operation normally involves one chipping unit and one or several transport trucks working ...

    • Range expansion of the small spruce bark beetle Ips amitinus: a newcomer in northern Europe 

      Økland, Bjørn; Flø, Daniel; Schroeder, Martin; Zach, Peter; Cocos, Dragos; Martikainen, Petri; Siitonen, Juha; Mandelshtam, Michail Y.; Musolin, Dmitry L.; Neuvonen, Seppo; Vakula, Jozef; Nikolov, Christo; Lindelöw, Åke; Voolma, Kaljo (Journal article; Peer reviewed, 2019)
      1 Ips amitinus arrived in Northern Europe at the beginning of 1900s, although its recent expansions to the northernmost conifers have been rapid. 2 Analyses of recent records, MaxEnt models and regional population size ...

    • Remote sensing and forest inventories in Nordic countries - roadmap for the future 

      Kangas, Annika; Astrup, Rasmus Andreas; Breidenbach, Johannes; Fridman, Jonas; Gobakken, Terje; Korhonen, Kari T.; Maltamo, Matti; Nilsson, Mats; Nord-Larsen, Thomas; Næsset, Erik; Olsson, Håkan (Journal article; Peer reviewed, 2018-01-18)
      The Nordic countries have long traditions in forest inventory and remote sensing (RS). In sample-based national forest inventories (NFIs), utilization of aerial photographs started during the 1960s, satellite images during ...

    • The red wood ant Formica aquilonia (Hymenoptera : Formicidae) may affect both local species richness and composition at multiple trophic levels in a boreal forest ecosystem 

      Thunes, Karl H; Gjerde, Ivar; Skartveit, John (Journal article; Peer reviewed, 2018)
      In temperate forests, red wood ants (Formica aquilonia) are considered ecosystem engineers affecting ecosystem properties and functions. Possible effects of F. aquilonia ants on species communities of invertebrates and ...

    • Thinning regimes and initial spacing for Eucalyptus plantations in Brazil 

      Filho, Antonio Carlos Ferraz; Mola-Yudego, Blas; González-Olabarria, José Ramón; Scolforo, José Roberto Soares (Journal article; Peer reviewed, 2018)
      This study focuses on the effects of different thinning regimes on clonal Eucalyptus plantations growth. Four different trials, planted in 1999 and located in Bahia and Espírito Santo States, were used. Aside from thinning, ...