Study ID 486

ITEX Dataset 8 - Valbercla (Alpine)

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Realm: Terrestrial
Climate: Temperate
Biome: Temperate coniferous forest
Central latitude: 46.475800
Central longitude: 9.584200
Duration: 3 years, from 1994 to 2009

761 records

47 distinct species

Across the time series Bartsia alpina 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.

Methods

Vegetation 1. Estimation of cover/abundance follows the method of Braun-Blanquet (Kent & Coker 1992). 2. Scale for estimate: r = 1-3 individuals; + = <1% few individuals; 1 = 1-5% / many individuals; 2 = 6-25% / large number of individuals; 3 = 26-50%; 4 = 51-75%. Data were transformed into mean values of classes. 3. Plot size: 0.8 m2 4. Approx subsite area: c. 20 m x 15 m = 300 m2 5. Missing taxa and year: No acro- and pleurocarpous bryophytes (XXXacrocarpousmoss, XXXpleurocarpousmoss) and lichen CETISL in 1994 and 1996. [At the moment, data does not contain 2009 bryophyte data] 6. Description of warming treatment if applicable: hexagonal OTCs during 1994-1996 and 2009-2010. No OTCs 1997-2008.