Blar i NTNU Open på forfatter "Olofsson, Johan"
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Background invertebrate herbivory on dwarf birch (Betula glandulosa-nana complex) increases with temperature and precipitation across the tundra biome
Barrio, Isabel C.; Lindén, Elin; te Beest, Mariska; Olofsson, Johan; Rocha, Adrian; Soininen, Eeva M; Alatalo, Juha M.; Andersson, Tommi; Asmus, Ashley; Boike, Julia; Bråthen, Kari Anne; Bryant, John P.; Buchwal, Agata; Bueno, C. Guillermo; Christie, Katherine S.; Denisova, Yulia V.; Egelkraut, Dagmar; Ehrich, Dorothee; Fishback, LeeAnn; Forbes, Bruce C.; Gartzia, Maite; Grogan, Paul; Hallinger, Martin; Heijmans, Monicque M.P.D.; Hik, David S.; Hofgaard, Annika; Holmgren, Milena; Høye, Toke T.; Huebner, Diane C.; Jonsdottir, Ingibjørg; Kaarlejärvi, Elina; Kumpula, Timo; Lange, Cynthia Y.M.J.G.; Lange, Jelena; Lévesque, Esther; Limpens, Juul; Macias-Fauria, Marc; Myers-Smith, Isla; Van Nieukerken, Erik J.; Normand, Signe; Post, Eric S.; Schmidt, Niels Martin; Sitters, Judith; Skoracka, Anna; Sokolov, Alexander; Sokolova, Natalya; Speed, James David Mervyn; Street, Lorna E.; Sundqvist, Maja K.; Suominen, Otso; Tananaev, Nikita; Tremblay, Jean-Pierre; Urbanowicz, Christine; Uvarov, Sergey A.; Watts, David; Wilmking, Martin; Wookey, Philip A.; Zimmermann, Heike H.; Zverev, Vitali; Kozlov, Mikhail V. (Journal article; Peer reviewed, 2017)Chronic, low intensity herbivory by invertebrates, termed background herbivory, has been understudied in tundra, yet its impacts are likely to increase in a warmer Arctic. The magnitude of these changes is however hard to ... -
Circum-Arctic distribution of chemical anti-herbivore compounds suggests biome-wide trade-off in defence strategies in Arctic shrubs
Lindén, Elin; te Beest, Mariska; Aubreu, Ilka; Moritz, Thomas; Sundqvist, Maja K.; Barrio, Isabel C.; Boike, Julia; Bryant, John P.; Bråthen, Kari Anne; Buchwal, Agata; Bueno, C. Guillermo; Currier, Alain; Egelkraut, Dagmar Dorothea; Forbes, Bruce C.; Hallinger, Martin; Heijmans, Monique; Hermanutz, Luise; Hik, David S.; Hofgaard, Annika; Holmgren, Milena; Huebner, Diane C.; Høye, Toke T.; Jónsdóttir, Ingibjörg S.; Kaarlejärvi, Elina; Kissler, Emilie; Kumpula, Timo; Limpens, Juul; Myers-Smith, Isla H.; Normand, Signe; Post, Eric; Rocha, Adrian V.; Schmidt, Niels Martin; Skarin, Anna; Soininen, Eeva M; Sokolov, Aleksandr; Sokolova, Natalia; Speed, James David Mervyn; Street, Lorna E.; Tananaev, Nikita; Tremblay, Jean-Pierre; Urbanowicz, Christine; Watts, David A.; Zimmermann, Heike H.; Olofsson, Johan (Peer reviewed; Journal article, 2022)Spatial variation in plant chemical defence towards herbivores can help us understand variation in herbivore top–down control of shrubs in the Arctic and possibly also shrub responses to global warming. Less defended, ... -
Hiding in the background: community-level patterns in invertebrate herbivory across the tundra biome
Rheubottom, Sarah I.; Barrio, Isabel C.; Kozlov, Mikhail V.; Alatalo, Juha M.; Andersson, Tommi; Asmus, Ashley L.; Baubin, Capucine; Brearley, Francis Q.; Egelkraut, Dagmar; Ehrich, Dorothee; Gauthier, Gilles; Jonsdottir, Ingibjørg; Konieczka, Sophia; Lévesque, Esther; Olofsson, Johan; Prevéy, Janet S.; Slevan-Tremblay, Guillaume; Sokolov, Aleksandr; Sokolova, Natalia; Sokovnina, Svetlana; Speed, James David Mervyn; Suominen, Otso; Zverev, Vitali; Hik, David S. (Journal article; Peer reviewed, 2019)Invertebrate herbivores depend on external temperature for growth and metabolism. Continued warming in tundra ecosys-tems is proposed to result in increased invertebrate herbivory. However, empirical data about how current ... -
Hiding in the background: community-level patterns in invertebrate herbivory across the tundra biome
Rheubottom, Sarah I.; Barrio, Isabel C.; Kozlov, Mikhail V.; Alatalo, Juha M.; Andersson, Tommi; Asmus, Ashley L.; Baubin, Capucine; Brearley, Francis Q.; Egelkraut, Dagmar; Ehrich, Dorothee; Gauthier, Gilles; Jonsdottir, Ingibjørg; Konieczka, Sophia; Lévesque, Esther; Olofsson, Johan; Prevéy, Janet S.; Slevan-Tremblay, Guillaume; Sokolov, Aleksandr; Sokolova, Natalia; Sokovnina, Svetlana; Speed, James David Mervyn; Suominen, Otso; Zverev, Vitali; Hik, David S. (Journal article; Peer reviewed, 2019)Invertebrate herbivores depend on external temperature for growth and metabolism. Continued warming in tundra ecosystems is proposed to result in increased invertebrate herbivory. However, empirical data about how current ... -
The impact of thermal seasonality on terrestrial endotherm food web dynamics: a revision of the Exploitation Ecosystem Hypothesis
Oksanen, Tarja Maarit; Oksanen, Lauri; Vuorinen, Katariina; Wolf, Christopher; Mäkynen, Aurelia; Olofsson, Johan; Ripple, William J.; Virtanen, Risto; Utsi, Tove Aagnes (Peer reviewed; Journal article, 2020)Many terrestrial endotherm food webs constitute three trophic level cascades. Others have two trophic level dynamics (food limited herbivores; plants adapted to tackle intense herbivory) or one trophic level dynamic ... -
Tundra Trait Team: A database of plant traits spanning the tundra biome
Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Thomas, Haydn J.D.; Alatalo, Juha M.; Alexander, Heather; Anadon-Rosell, Alba; Angers-Blondin, Sandra; Bai, Yang; Baruah, Gaurav; te Beest, Mariska; Berner, Logan; Björk, Robert G.; Blok, Daan; Bruelheide, Helge; Buchwal, Agata; Buras, Allan; Carbognani, Michele; Christie, Katherine; Collier, Laura Siegwart; Cooper, Elisabeth J.; Cornelissen, J. Hans C.; Dickinson, Katharine J.M.; Dullinger, Stefan; Elberling, Bo; Eskelinen, Anu; Forbes, Bruce C.; Frei, Esther R.; Iturrate-Garcia, Maitane; Good, Megan K.; Grau, Oriol; Green, Peter; Greve, Michelle; Grogan, Paul; Haider, Sylvia; Hájek, Tomáš; Hallinger, Martin; Happonen, Konsta; Harper, Karen A.; Heijmans, Monicque M.P.D.; Henry, Gregory H.R.; Hermanutz, Luise; Hewitt, Rebecca E.; Hollister, Robert D.; Hudson, James; Hülber, Karl; Iversen, Colleen M.; Jaroszynska, Francesca; Jiménez-Alfaro, Borja; Johnstone, Jill; Jørgensen, Rasmus Halfdan; Kaarlejärvi, Elina; Klady, Rebecca; Klimešová, Jitka; Korsten, Annika; Kuleza, Sara; Kulonen, Aino; Lamarque, Laurent J.; Lantz, Trevor; Lavalle, Amanda; Lembrechts, Jonas J.; Lévesque, Esther; Little, Chelsea J.; Luoto, Miska; Macek, Petr; Mack, Michelle C.; Mathakutha, Rabia; Michelsen, Anders; Milbau, Ann; Molau, Ulf; Morgan, John W.; Mörsdorf, Martin Alfons; Nabe-Nielsen, Jacob; Nielsen, Sigrid Schøler; Ninot, Josep M.; Oberbauer, Steven F.; Olofsson, Johan; Onipchenko, Vladimir G.; Petraglia, Alessandro; Pickering, Catherine; Prevéy, Janet S.; Rixen, Christian; Rumpf, Sabine Bettina; Schaepman-Strub, Gabriela; Semenchuk, Philipp; Shetti, Rohan; Soudzilovskaia, Nadejda A.; Spasojevic, Marko J.; Speed, James David Mervyn; Street, Lorna E.; Suding, Katharine; Tape, Ken D.; Tomaselli, Marcello; Trant, Andrew; Treier, Urs A.; Tremblay, Jean-Pierre; Tremblay, Maxime; Venn, Susanna; Virkkala, Anna-Maria; Vowles, Tage; Weijers, Stef; Wilmking, Martin; Wipf, Sonja; Zamin, Tara (Journal article; Peer reviewed, 2018)Motivation The Tundra Trait Team (TTT) database includes field‐based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical ...