Blar i forfatter "Molau, Ulf"

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    • Experimental warming differentially affects vegetative and reproductive phenology of tundra plants 

      Collins, Courtney G.; Elmendorf, Sarah C.; Hollister, Robert D.; Henry, Greg H. R.; Clark, Karin; Bjorkman, Anne D.; Myers-Smith, Isla H.; Prevéy, Janet S.; Ashton, Isabel W.; Assmann, Jakob J.; Alatalo, Juha M.; Carbognani, Michele; Chisholm, Chelsea L.; Cooper, Elisabeth J.; Forrester, Chiara; Jónsdóttir, Ingibjörg Svala; Klanderud, Kari; Kopp, Christopher W.; Livensperger, Carolyn; Mauritz, Marguerite; May, Jeremy L.; Molau, Ulf; Oberbauer, Steven F.; Ogburn, Emily; Panchen, Zoe A.; Petraglia, Alessandro; Post, Eric; Rixen, Christian; Rodenhizer, Heidi; Schuur, Edward A.G.; Semenchuk, Philipp; Smith, Jane G.; Steltzer, Heidi; Totland, Ørjan; Walker, Marilyn D.; Welker, Jeffrey M.; Suding, Katharine N. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-06-11)
      Rapid climate warming is altering Arctic and alpine tundra ecosystem structure and function, including shifts in plant phenology. While the advancement of green up and flowering are well-documented, it remains unclear whether all phenophases, particularly those later in the season, will shift in unison or respond divergently to warming. Here, we present the largest synthesis to our knowledge of ...

    • Plant functional trait change across a warming tundra biome 

      Bjorkman, Anne D.; Myers-Smith, Isla H.; Elmendorf, Sarah C.; Normand, Signe; Rüger, Nadja; Beck, Pieter S. A.; Blach-Overgaard, Anne; Blok, Daan; Cornelissen, J. Hans C.; Forbes, Bruce C.; Georges, Damien; Goetz, Scott J.; Guay, Kevin C.; Henry, Gregory H.R.; HilleRisLambers, Janneke; Hollister, Robert D.; Karger, Dirk N.; Kattge, Jens; Manning, Peter; Prevéy, Janet S.; Rixen, Christian; Schaepman-Strub, Gabriela; Thomas, Haydn J.D.; Vellend, Mark; Wilmking, Martin; Wipf, Sonja; Carbognani, Michele; Hermanutz, Luise; Lévesque, Esther; Molau, Ulf; Petraglia, Alessandro; Soudzilovskaia, Nadejda A.; Spasojevic, Marko J.; Tomaselli, Marcello; Vowles, Tage; Alatalo, Juha M.; Alexander, Heather D.; Anadon-Rosell, Alba; Angers-Blondin, Sandra; te Beest, Mariska; Berner, Logan; Björk, Robert G.; Buchwal, Agata; Buras, Allan; Christie, Katherine; Cooper, Elisabeth J.; Dullinger, Stefan; Elberling, Bo; Eskelinen, Anu; Frei, Esther R.; Grau, Oriol; Grogan, Paul; Hallinger, Martin; Semenschuk, Philipp; Speed, James David Mervyn; Hofgaard, Annika; Collier, Laura S.; Garcia, Maitane I.; Harper, Karen; Heijmans, Monique; Hudson, James; Hülber, Karl; Iversen, Colleen M.; Jaroszynska, Francesca; Johnstone, Jill; Jorgensen, Rasmus H.; Kaarlejärvi, Elina; Klady, Rebecca; Kuleza, Sara; Kulonen, Aino; Lamarque, Laurent J.; Lantz, Trevor; Lavalle, Amanda; Little, Chelsea J.; Speed, James D. M.; Michelsen, Anders; Milbau, Ann; Nabe-Nielsen, Jacob; Nielsen, Sigrid S.; Ninot, Josep M.; Oberbauer, Steve; Olofsson, Johan; Onipchenko, Vladimir G.; Rumpf, Sabine B; Semenchuk, Philipp; Shetti, Rohan; Street, Lorna; Suding, Katharine; Tape, Ken; Trant, Andrew; Treier, Urs; Tremblay, Jean-Pierre; Tremblay, Maxime; Venn, Susanna; Weijers, Stef; Zamin, Tara; Boulanger-Lapointe, Noemie; Gould, William A.; Hik, Dave; Hofgaard, Annika; Jonsdottir, Inga S.; Jorgenson, Janet; Klein, Julia; Magnusson, Borgthor; Tweedie, Craig; Wookey, Philip A.; Bahn, Michael; Blonder, Benjamin; van Bodegom, Peter; Bond-Lamberty, Benjamin; Campetella, Giandiego; Cerabolini, Bruno E. L.; Chapin III, F. Stuart; Cornwell, Will; Craine, Joseph; Dainese, Matteo; de Vries, Franciska T.; Diaz, Sandra; Enquist, Brian J.; Green, Walton; Manning, Peter; Milla, Ruben; Niinemets, Ülo; Onoda, Yusuke; Ordonez, Jenny; Ozinga, Wim A.; Penuelas, Josep; Poorter, Hendrik; Poschlod, Peter; Reich, Peter; Sandel, Brody; Schamp, Brandon; Sheremetev, Serge; Weiher, Evan (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-26)
      The tundra is warming more rapidly than any other biome on Earth, and the potential ramifications are far-reaching because of global feedback effects between vegetation and climate. A better understanding of how environmental factors shape plant structure and function is crucial for predicting the consequences of environmental change for ecosystem functioning. Here we explore the biome-wide relationships ...

    • A review of open top chamber (OTC) performance across the ITEX Network 

      Hollister, Robert D.; Elphinstone, Cassandra; Henry, Greg H.R.; Bjorkman, Anne D.; Klanderud, Kari; Björk, Robert G.; Björkman, Mats P.; Bokhorst, Stef; Carbognani, Michele; Cooper, Elisabeth; Dorrepaal, Ellen; Elmendorf, Sarah C.; Fetcher, Ned; Gallois, Elise C.; Gudmundsson, Jon Steinar; Healey, Nathan C.; Jonsdottir, Ingibjorg Svala; Klarenberg, Ingeborg J.; Oberbauer, Steven F.; Macek, Petr; May, Jeremy L.; Mereghetti, Alessandro; Molau, Ulf; Petraglia, Alessandro; Rinnan, Riikka; Rixen, Christian; Wookey, Philip A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-19)
      Open top chambers (OTCs) were adopted as the recommended warming mechanism by the International Tundra Experiment (ITEX) network in the early 1990’s. Since then, OTCs have been deployed across the globe. Hundreds of papers have reported the impacts of OTCs on the abiotic environment and the biota. Here we review the impacts of the OTC on the physical environment, with comments on the appropriateness ...

    • The tundra phenology database: more than two decades of tundra phenology responses to climate change 

      Prevéy, Janet; Elmendorf, Sarah; Cooper, Elisabeth; Bjorkman, Anne; Alatalo, Juha M.; Ashton, Isabel; Björk, Mats P.; Assmann, Jakob J.; Björk, Robert G.; Björkman, Mats P.; Cannone, Nicoletta; Carbognani, Michele; Chisholm, Chelsea; Clark, Karin; Collins, Courtney G.; Elberling, Bo; Frei, Esther R.; Henry, Gregory R.H.; Hollister, Robert D.; Høye, Toke Thomas; Jonsdottir, Ingibjörg Svala; Kerby, Jeffrey T.; Klanderud, Kari; Kopp, Christopher; Levesque, Esther; Mauritz, Marguerite; Molau, Ulf; Myers-smith, Isla H.; Natali, Susan M.; Oberbauer, Steven F.; Panchen, Zoe; Petraglia, Alessandro; Post, Eric; Rixen, Christian; Rodenhizer, Heidi; Rumpf, Sabine B.; Schmidt, Niels Martin; Schuur, Ted; Semenchuk, Philipp; Smith, Jane Griffin; Suding, Katharine; Totland, Ørjan; Troxler, Tiffany; Wahren, Henrik; Welker, Jeffrey M.; Wipf, Sonja; Yang, Yue (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-11)
      Observations of changes in phenology have provided some of the strongest signals of the effects of climate change on terrestrial ecosystems. The International Tundra Experiment (ITEX), initiated in the early 1990s, established a common protocol to measure plant phenology in tundra study areas across the globe. Today, this valuable collection of phenology measurements depicts the responses of ...

    • 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; Tidsskriftartikkel; Peer reviewed, 2018-10-22)
      <p><i>Motivation</i>: 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 questions about plant strategy and trade‐offs, trait–environment relationships and environmental filtering, and trait variation across spatial scales, to validate satellite ...