Blar i NIBIO Brage på forfatter "Voolma, Kaljo"

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    • Biotic threats for 23 major non-native tree species in Europe 

      Pötzelsberger, Elisabeth; Gossner, Martin M.; Beenken, Ludwig; Gazda, Anna; Petr, Michal; Ylioja, Tiina; La Porta, Nicola; Avtzis, Dimitrios N.; Bay, Elodie; De Groot, Maarten; Drenkhan, Rein; Duduman, Mihai-Leonard; Enderle, Rasmus; Georgieva, Margarita; Hietala, Ari Mikko; Hoppe, Björn; Jactel, Herve; Jarni, Kristjan; Keren, Srđan; Keseru, Zsolt; Koprowski, Marcin; Kormuťák, Andrej; Lombardero, María Josefa; Lukjanova, Aljona; Marozas, Vitas; Mauri, Edurad; Monteverdi, Maria Cristina; Nygaard, Per Holm; Ogris, Nikica; Olenici, Nicolai; Orazio, Christophe; Perny, Bernhard; Pinto, Glória; Power, Michael; Puchalka, Radoslaw; Ravn, Hans Peter; Sevillano, Ignacio; Stroheker, Sophie; Taylor, Paul; Tsopelas, Panagiotis; Urban, Josef; Voolma, Kaljo; Westergren, Marjana; Witzell, Johanna; Zborovska, Olga; Zlatkovic, Milica (Peer reviewed; Journal article, 2021-08-06)
      For non-native tree species with an origin outside of Europe a detailed compilation of enemy species including the severity of their attack is lacking up to now. We collected information on native and non-native species ...

    • 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 ...