• Climatic and biotic extreme events moderate long-term responses of above- and belowground sub-Arctic heathland communities to climate change 

      Bokhorst, Stef; Phoenix, Gareth K.; Berg, Matty P.; Callaghan, Terry V.; Kirby-Lambert, Christopher; Bjerke, Jarle W. (Journal article; Peer reviewed, 2015)
      Climate change impacts are not uniform across the Arctic region because interacting factors causes large variations in local ecosystem change. Extreme climatic events and population cycles of herbivores occur simultaneously ...
    • Complexity revealed in the greening of the Arctic 

      Myers-Smith, Isla H.; Kerby, Jeffrey T.; Phoenix, Gareth K.; Bjerke, Jarle W.; Epstein, Howard E.; Assmann, Jakob J.; John, Christian; Andreu-Hayles, Laia; Angers-Blondin, Sandra; Beck, Pieter S. A.; Berner, Logan T.; Bhatt, Uma S.; Bjorkman, Anne D.; Blok, Daan; Bryn, Anders; Christiansen, Casper Tai; Cornelissen, J. Hans C.; Cunliffe, Andrew M.; Elmendorf, Sarah C.; Forbes, Bruce C.; Goetz, Scott J.; Hollister, Robert D.; de Jong, Rogier; Loranty, Michael M.; Macias-Fauria, Marc; Maseyk, Kadmiel; Normand, Signe; Olofsson, Johan; Parker, Thomas C.; Parmentier, Frans-Jan W.; Post, Eric; Schaepman-Strub, Gabriela; Stordal, Frode; Sullivan, Patrick F.; Thomas, Haydn J.D.; Tømmervik, Hans; Treharne, Rachael; Tweedie, Craig E.; Walker, Donald A.; Wilmking, Martin; Wipf, Sonja (Journal article; Peer reviewed, 2020)
      As the Arctic warms, vegetation is responding, and satellite measures indicate widespread greening at high latitudes. This ‘greening of the Arctic’ is among the world’s most important large-scale ecological responses to ...
    • Ecosystem change and stability over multiple decades in the Swedish subarctic: complex processes and multiple drivers 

      Callaghan, Terry V.; Jonasson, Christer; Thierfelder, Tomas; Yang, Zhenlin; Hedenås, Henrik; Johansson, Margareta; Molau, Ulf; Van Bogaert, Rik; Michelsen, Anders; Olofsson, Johan; Gwynn-Jones, Dylan; Bokhorst, Stef; Phoenix, Gareth K.; Bjerke, Jarle Werner; Tømmervik, Hans; Christensen, Torben R.; Hanna, Edward; Koller, Eva K.; Sloan, Victoria L. (Journal article; Peer reviewed, 2013)
      The subarctic environment of northernmost Sweden has changed over the past century, particularly elements of climate and cryosphere. This paper presents a unique geo-referenced record of environmental and ecosystem ...
    • Ecosystem response to climatic change: the importance of the cold season 

      Bokhorst, Stef; Bjerke, Jarle Werner; Tømmervik, Hans; Preece, Catherine; Phoenix, Gareth K. (Journal article; Peer reviewed, 2012)
      Winter climate and snow cover are the important drivers of plant community development in polar regions. However, the impacts of changing winter climate and associated changes in snow regime have received much less attention ...
    • Extreme event impacts on CO2 fluxes across a range of high latitude, shrub-dominated ecosystems 

      Treharne, Rachael; Bjerke, Jarle W.; Tømmervik, Hans; Phoenix, Gareth K. (Peer reviewed; Journal article, 2020)
      The Arctic is experiencing an increased frequency of extreme events which can cause landscape-scale vegetation damage. Extreme event-driven damage is an important driver of the decline in vegetation productivity (termed ...
    • Impact of Multiple Ecological Stressors on a Sub-Arctic Ecosystem: No Interaction Between Extreme Winter Warming Events, Nitrogen Addition and Grazing 

      Bokhorst, Stef; Berg, atty P.; Edvinsen, Guri K.; Ellers, Jacintha; Heitman, Amber; Jaakola, Laura; Mæhre, Hanne K.; Phoenix, Gareth K.; Tømmervik, Hans; Bjerke, Jarle W. (Peer reviewed, 2018)
      Climate change is one of many ongoing human-induced environmental changes, but few studies consider interactive effects between multiple anthropogenic disturbances. In coastal sub-arctic heathland, we quantified the ...
    • The missing pieces for better future predictions in subarctic ecosystems: A Tornetra¨sk case study 

      Pascual, Didac; Åkerman, Jonas; Becher, Marina; Callaghan, Terry V.; Christensen, Torben R.; Dorrepaal, Ellen; Emanuelsson, Urban; Giesler, Reiner; Hammarlund, Dan; Hanna, Edward; Hofgaard, Annika; Jin, Hongxiao; Johansson, Cecilia; Jonasson, Christer; Klaminder, Jonatan; Karlsson, Jan; Lundin, Erik; Michelsen, Anders; Olefeldt, David; Persson, Andreas; Phoenix, Gareth K.; Ra˛czkowska, Zofia; Rinnan, Riikka; Ström, Lena; Tang, Jing; Varner, Ruth K.; Wookey, Philip; Johansson, Margareta (Peer reviewed; Journal article, 2020)
      Arctic and subarctic ecosystems are experiencing substantial changes in hydrology, vegetation, permafrost conditions, and carbon cycling, in response to climatic change and other anthropogenic drivers, and these changes ...
    • Persistent reduction of segment growth and photosynthesis in a widespread and important sub-Arctic moss species after cessation of three years of experimental winter warming 

      Bjerke, Jarle W.; Bokhorst, Stef; Callaghan, Terry V.; Phoenix, Gareth K. (Journal article; Peer reviewed, 2017)
      1. Winter is a period of dormancy for plants of cold environments. However, winter climate is changing, leading to an increasing frequency of stochastic warm periods (winter warming events) and concomitant reductions in ...
    • Stress-induced secondary leaves of a boreal deciduous shrub (Vaccinium myrtillus) overwinter then regain activity the following growing season 

      Bjerke, Jarle W.; Wierzbinski, Grzegorz; Tømmervik, Hans; Phoenix, Gareth K.; Bokhorst, Stef (Journal article; Peer reviewed, 2018)
      The ericoid shrub Vaccinium myrtillus is one of several deciduous boreal plants that respond to larval defoliation by compensatory production of a new set of leaves within the same growing season soon after defoliation. ...