Now showing items 1-3 of 3

    • Contrasting sensitivity to extreme winter warming events of dominant sub-Arctic heathland bryophyte and lichen species 

      Bjerke, Jarle W.; Bokhorst, Stef; Zielke, Matthias; Callaghan, Terry V.; Bowles, Francis W.; Phoenix, Gareth K. (2010-12)
      Climate change in northern high latitudes is predicted to be greater in winter rather than summer, yet little is known about the effects of winter climate change on northern ecosystems. Among the unknowns are the effects ...
    • Impacts of extreme winter warming events on litter decomposition in a sub-Arctic heathland 

      Bokhorst, Stef; Bjerke, Jarle W.; Melillo, Jerry M.; Callaghan, Terry V.; Phoenix, Gareth K. (2009-12-17)
      Arctic climate change is expected to lead to a greater frequency of extreme winter warming events. During these events, temperatures rapidly increase to well above 0ºC for a number of days, which can lead to snow melt ...
    • Plant community responses to experimental warming across the tundra biome 

      Walker, Marilyn D.; Wahren, C. Henrik; Hollister, Robert D.; Henry, Greg H. R.; Ahlquist, Lorraine E.; Alatalo, Juha M.; Bret-Harte, M. Syndonia; Calef, Monika P.; Callaghan, Terry V.; Carroll, Amy B.; Epstein, Howard E.; Jonsdottir, Ingibjorg S.; Klein, Julia A.; Magnusson, Borgbor; Molau, Ulf; Oberbauer, Steven F.; Rewa, Steven P.; Robinson, Clare H.; Shaver, Gaius R.; Suding, Katharine N.; Thompson, Catharine C.; Tolvanen, Anne; Totland, Orjan; Turner, P. Lee; Tweedie, Craig E.; Webber, Patrick J.; Wookey, Philip A. (National Academy of Sciences of the USA, 2006-01-20)
      Recent observations of changes in some tundra ecosystems appear to be responses to a warming climate. Several experimental studies have shown that tundra plants and ecosystems can respond strongly to environmental change, ...