Study ID 479

ITEX Dataset 1 - Abisko (Wet, Dry, Peatland), Kanger (Bashful, Dopey, Sneezy) and Kilpisjarvi

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Realm: Terrestrial
Climate: Polar
Biome: Tundra
Central latitude: 68.120719
Central longitude: -3.822305
Duration: 9 years, from 1999 to 2008

2553 records

75 distinct species

Across the time series Betula nana is the most frequently occurring species

Citation(s):

Elmendorf, S.C. (2012) Global Tundra Vegetation Change –30 years of plant abundance data from unmanipulated and experimentally-warmed plots. Available at: http://www.polardata.ca, accessed 2017. CCIN reference number 10786.Elmendorf, S.C., Henry, G.H., Hollister, R.D., Björk, R.G., Bjorkman, A.D., Callaghan, T.V., Collier, L.S., Cooper, E.J., Cornelissen, J.H. & Day, T.A. (2012a) Global assessment of experimental climate warming on tundra vegetation: heterogeneity over space and time. Ecology letters, 15, 164–175.Elmendorf, S.C., Henry, G.H., Hollister, R.D., Björk, R.G., Boulanger-Lapointe, N., Cooper, E.J., Cornelissen, J.H., Day, T.A., Dorrepaal, E. & Elumeeva, T.G. (2012b) Plot-scale evidence of tundra vegetation change and links to recent summer warming. Nature Climate Change, 2, 453–457.Elmendorf, S.C., Henry, G.H., Hollister, R.D., Fosaa, A.M., Gould, W.A., Hermanutz, L., Hofgaard, A., Jónsdóttir, I.S., Jorgenson, J.C. & Lévesque, E. (2015) Experiment, monitoring, and gradient methods used to infer climate change effects on plant communities yield consistent patterns. Proceedings of the National Academy of Sciences, 112, 448–452.Rinnan, R., Stark, S. & Tolvanen, A. (2009) Responses of vegetation and soil microbial communities to warming and simulated herbivory in a subarctic heath. Journal of Ecology, 97, 788–800.Ylänne, H., Stark, S. & Tolvanen, A. (2015) Vegetation shift from deciduous to evergreen dwarf shrubs in response to selective herbivory offsets carbon losses: evidence from 19 years of warming and simulated herbivory in the subarctic tundra. Global Change Biology, 21, 3696–3711.

Methods

Vegetation biomass is estimated using a 0.25m2 point frame with 20 pin hits per frame. All encounters with the lowered pin are recorded until substrate is hit. Point frame using ITEX protocol. [VASC 2004]: Point frame 2 (50x50cm, 270 holes, 30 holes/row, 9 rows, needle diameter<0.5mm). Frame 2 calibrated with frame 1 so unitsin databasearethe same.2. The Abundance units:Point frame hits, [VASC]all hits, except Empetrum/Andromeda: one hit per branch; [Crypt]firsthit