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Numrering	Referens	Omslagsbild	Hitta
1.	Elmendorf, Sarah C., et al. (författare) Plot-scale evidence of tundra vegetation change and links to recent summer warming 2012 Ingår i: Nature Climate Change. - : Nature Publishing Group. - 1758-678X .- 1758-6798. ; 2:6, s. 453-457 Tidskriftsartikel (refereegranskat)abstract Temperature is increasing at unprecedented rates across most of the tundra biome. Remote-sensing data indicate that contemporary climate warming has already resulted in increased productivity over much of the Arctic, but plot-based evidence for vegetation transformation is not widespread. We analysed change in tundra vegetation surveyed between 1980 and 2010 in 158 plant communities spread across 46 locations.We found biome-wide trends of increased height of the plant canopy and maximum observed plant height for most vascular growth forms; increased abundance of litter; increased abundance of evergreen, low-growing and tall shrubs; and decreased abundance of bare ground. Intersite comparisons indicated an association between the degree of summer warming and change in vascular plant abundance, with shrubs, forbs and rushes increasing with warming. However, the association was dependent on the climate zone, the moisture regime and the presence of permafrost. Our data provide plot-scale evidence linking changes in vascular plant abundance to local summer warming in widely dispersed tundra locations across the globe.
2.	Lett, Signe, et al. (författare) Can bryophyte groups increase functional resolution in tundra ecosystems? 2022 Ingår i: Arctic Science. - Ottawa : Canadian Science Publishing. - 2368-7460. ; 8:3, s. 609-637 Tidskriftsartikel (refereegranskat)abstract The relative contribution of bryophytes to plant diversity, primary productivity, and ecosystem functioning increases towards colder climates. Bryophytes respond to environmental changes at the species level, but because bryophyte species are relatively difficult to identify, they are often lumped into one functional group. Consequently, bryophyte function remains poorly resolved. Here, we explore how higher resolution of bryophyte functional diversity can be encouraged and implemented in tundra ecological studies. We briefly review previous bryophyte functional classifications and the roles of bryophytes in tundra ecosystems and their susceptibility to environmental change. Based on shoot morphology and colony organization, we then propose twelve easily distinguishable bryophyte functional groups. To illustrate how bryophyte functional groups can help elucidate variation in bryophyte effects and responses, we compiled existing data on water holding capacity, a key bryophyte trait. Although plant functional groups can mask potentially high interspecific and intraspecific variability, we found better separation of bryophyte functional group means compared with previous grouping systems regarding water holding capacity. This suggests that our bryophyte functional groups truly represent variation in the functional roles of bryophytes in tundra ecosystems. Lastly, we provide recommendations to improve the monitoring of bryophyte community changes in tundra study sites.

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Typ av publikation: tidskriftsartikel (2)

Typ av innehåll: refereegranskat (2)

Författare/redaktör: Dorrepaal, Ellen (2); Michelsen, Anders (2); Klanderud, Kari (2); Lévesque, Esther (2)Ta bort avgränsningen; Henry, Gregory H.R. (2); Hollister, Robert D. (2); visa fler...; Rixen, Christian (2); Cooper, Elisabeth J. (2); Tolvanen, Anne (2); Cornelissen, J. Hans ... (1); Johnstone, Jill F. (1); Keuper, Frida (1); Molau, Ulf, 1951 (1); Oberbauer, Steven F. (1); Welker, Jeffrey M. (1); Alatalo, Juha M. (1); Jägerbrand, Annika K ... (1); Liu, Xin (1); Vandvik, Vigdis (1); Björk, Robert G., 19 ... (1); Rousk, Kathrin (1); Hik, David S. (1); Soudzilovskaia, Nade ... (1); Egelkraut, Dagmar (1); Hofgaard, Annika (1); Jónsdóttir, Ingibjor ... (1); Robroek, Bjorn J. M. (1); Elmendorf, Sarah C. (1); Myers-Smith, Isla H. (1); Wipf, Sonja (1); Carbognani, Michele (1); Petraglia, Alessandr ... (1); Spasojevic, Marko J. (1); Onipchenko, Vladimir ... (1); Boulanger-Lapointe, ... (1); Gould, William A. (1); Jónsdóttir, Ingibjör ... (1); Magnusson, Borgthor (1); Lett, Signe (1); Wahren, Carl-Henrik (1); Ekelund, Flemming (1); Callaghan, Terry (1); Johnson, David R. (1); Koh, Saewan (1); Webber, Patrick J. (1); Troxler, Tiffany (1); Cornelissen, Johanne ... (1); Klein, Julia A (1); Harte, John (1); Tweedie, Craig E. (1); visa färre...

Lärosäte: Umeå universitet (2); Göteborgs universitet (1); Högskolan i Halmstad (1); Högskolan i Gävle (1)

Språk: Engelska (2)

Forskningsämne (UKÄ/SCB): Naturvetenskap (2)

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