Blar i forfatter "Schmidt, Niels Martin"

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    • Arctic terrestrial biodiversity status and trends: A synopsis of science supporting the CBMP State of Arctic Terrestrial Biodiversity Report 

      Taylor, Jason, J.; Lawler, James P.; Aronsson, Mora; Barry, Tom; Bjorkman, Anne D.; Christensen, Tom; Coulson, Stephen J.; Cuyler, Christine; Ehrich, Dorothee; Falk, Knut; Franke, Alastair; Fuglei, Eva; Gillespie, Mark Andrew Kusk; Heidmarsson, Starri; Høye, Toke T.; Jenkins, Liza K.; Ravolainen, Virve; Smith, Paul A.; Wasowicz, Pawel; Schmidt, Niels Martin (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-18)
      This review provides a synopsis of the main findings of individual papers in the special issue <i>Terrestrial Biodiversity in a Rapidly Changing Arctic</i>. The special issue was developed to inform the <i>State of the Arctic Terrestrial Biodiversity Report</i> developed by the Circumpolar Biodiversity Monitoring Program (CBMP) of the Conservation of Arctic Flora and Fauna (CAFF), Arctic Council ...

    • 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 (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-30)
      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, non-resinous shrubs could be more influenced by herbivores than more defended, resinous shrubs. However, sparse field measurements limit our current understanding of how much of the ...

    • A Comparative Study on the Faecal Bacterial Community and Potential Zoonotic Bacteria of Muskoxen (Ovibos moschatus) in Northeast Greenland, Northwest Greenland and Norway 

      Andersen-Ranberg, Emilie; Barnes, Christopher J; Rasmussen, Linett; Salgado-Flores, Alejandro; Grøndahl, Carsten; Mosbacher, Jesper Bruun; Hansen, Anders J.; Sundset, Monica Alterskjær; Schmidt, Niels Martin; Christian, Sonne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-25)
      Muskoxen (<i>Ovibos moschatus</i>) are ruminants adapted to a high-fibre diet. There is increasing interest in the role that gut microbes play in the digestion and utilization of these specialized diets but only limited data available on the gut microbiome of high-Arctic animals. In this study, we metabarcoded the 16S rRNA region of faecal samples from muskoxen of Northeast Greenland, Northwest ...

    • Growth rings show limited evidence for ungulates’ potential to suppress shrubs across the Arctic 

      Vuorinen, Katariina Elsa Maria; Austrheim, Gunnar; Tremblay, Jean-Pierre; Myers-Smith, Isla H.; Hortman, Hans Ivar; Frank, Peter; Barrio, Isabel C.; Dalerum, Fredrik; Björkman, Mats Peter; Björk, Robert G.; Ehrich, Dorothee; Sokolov, Aleksandr; Sokolova, Natalya; Ropars, Pascale; Boudreau, Stephane; Normand, Signe; Prendin, Angela L.; Schmidt, Niels Martin; Pacheco-Solana, Arturo; Post, Eric; John, Christian; Kerby, Jeff; Sullivan, Patrick F.; Le Moullec, Mathilde; Hansen, Brage Bremset; van der Wal, René; Pedersen, Åshild Ønvik; Sandal, Lisa; Gough, Laura; Young, Amanda; Li, Bingxi; Magnusson, Runa I.; Sass-Klaassen, Ute; Buchwal, Agata; Welker, Jeffrey; Grogan, Paul; Andruko, Rhett; Volkovitskiy, Alexander; Terekhina, Alexandra; Speed, James David Mervyn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-22)
      Global warming has pronounced effects on tundra vegetation, and rising mean temperatures increase plant growth potential across the Arctic biome. Herbivores may counteract the warming impacts by reducing plant growth, but the strength of this effect may depend on prevailing regional climatic conditions. To study how ungulates interact with temperature to influence growth of tundra shrubs across ...

    • Shrub expansion in tundra ecosystems : dynamics, impacts and research priorities 

      Myers-Smith, Isla; Forbes, Bruce C.; Wilmking, Martin; Hallinger, Martin; Lantz, Trevor; Blok, Daan; Tape, Ken D; Ravolainen, Virve; Macias-Fauria, Marc; Sass-Klaassen, Ute; Levesque, Esther; Boudreau, Stephane; Ropars, Pascale; Hermanutz, Luise; Trant, Andrew; Collier, Laura Siegwart; Weijers, Niels Martin; Rozema, Jelte; Rayback, Shelly A; Schmidt, Niels Martin; Schaepman-Strub, Gabriela; Wipf, Sonja; Rixen, Christian; Menard, Cecile B; Venn, Susanna; Goetz, Scott; Andreu-Hayles, Laia; Elmendorf, Sarah; Welker, Jeffrey; Grogan, Paul; Epstein, Howard E.; Hik, David S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems. Here, we (1) synthesize these findings, (2) present a conceptual framework that identifies mechanisms and constraints on shrub increase, (3) explore causes, feedbacks and implications of the increased shrub cover in tundra ...

    • 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 ...