Data from: Competitor or facilitator? The ambiguous role of alpine grassland for the early establishment of tree seedlings at treeline

Loranger H, Zotz G, Bader MY

Date Published: May 3, 2017

DOI: http://dx.doi.org/10.5061/dryad.ff574

 

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Title Seedling emergence and survival_Loranger2017
Downloaded 2 times
Description Emergence and survival_Loranger2017.csv = Comma-delimited CSV. Emergence of tree seedlings from seeds and subsequent survival through the first growing season at alpine treeline elevation in the French Alps. Seeds were sown in autumn 2013 and emergence and survival/mortality were registered weekly throughout the growing season in 2014. Date = date of monitoring FreeDays = number of days after snowmelt Block = experimental block Treat = treatments: C = Control = bare-ground plots; Sh = shading = covered by shade roofs; V = full vegetation, V2 = intermediate vegetation. Species: Lar = Larix decidua; Pic = Picea abies; Sor = Sorbus aucuparia; Pinc = Pinus cembra; Pinu = Pinus uncinata Row = row in plot Sown = number of seeds sown Dead = number of dead seedlings Alive = number of surviving seedlings Germ_All = number of germinated seedlings (including subsequently dead ones)
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Title Carbohydrates and Biomass_Loranger2017
Downloaded 3 times
Description Carbohydrates and Biomass_Loranger2017.txt = Tab-delimited text file. Non-structural carbohydrate concentrations and biomass of plant parts (roots, stems, leaves) of tree seedlings at alpine treeline elevation in the French Alps. Seedlings were planted in spring 2013 and harvested in autumn 2013 and spring 2014. ID = Sample ID from carbohydrate extraction Season = sampling season: S13 = September 2013, M14 = May 2014 Block = experimental block Treat = treatments: C = Control = bare-ground plots; Sh = shading = covered by shade roofs; V = full vegetation, V2 = intermediate vegetation Species: Lar = Larix decidua; Pic = Picea abies; Sor = Sorbus aucuparia; Pin = Pinus cembra; Pinu = Pinus uncinata Ind = seedling number in the plot Part = seedling part: L = leaves, S = stem, R = roots MassSm = mass of extraction sample (mg) MassPt = mass of seedling part (mg) Glu = glucose concentration (mg/g) Fru = fructose concentration (mg/g) Sac = saccharose concentration (mg/g) Mal = maltose concentration (mg/g) Total_SC = total soluble sugar concentration (mg/g) Starch = starch concentration (mg/g) Total_NSC = total non-structural carb. Concentration (mg/g)
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Title Mortality_Loranger2017_13-14
Downloaded 1 time
Description Mortality_Loranger2017_13-14.csv = Comma-delimited CSV. Seedling mortality in tree seedlings at alpine treeline elevation in the French Alps. Seedlings were planted in spring 2013 and mortality was registered in September 2013 and April-May 2014, after snowmelt. The first registration was April 16th in Block 1, in the other blocks the registration was later, as snow melted later. Season = grouping of data collections into two seasons: May14 = Spring (16 April to late May) 2014, Sept 13 = 2 Sept 2013 Block = experimental block Treat = treatments: C = Control = bare-ground plots; Sh = shading = covered by shade roofs; V = full vegetation, V2 = intermediate vegetation. Species: Lar = Larix decidua; Pic = Picea abies; Sor = Sorbus aucuparia; Pin = Pinus cembra; Pinu = Pinus uncinata Planted = number of seedlings planted DeadOn = number of dead seedlings not counting those damaged by breakage or herbivory DeadAl = number of dead seedlings
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When using this data, please cite the original publication:

Loranger H, Zotz G, Bader MY (2017) Competitor or facilitator? The ambiguous role of alpine grassland for the early establishment of tree seedlings at treeline. Oikos, online in advance of print. http://dx.doi.org/10.1111/oik.04377

Additionally, please cite the Dryad data package:

Loranger H, Zotz G, Bader MY (2017) Data from: Competitor or facilitator? The ambiguous role of alpine grassland for the early establishment of tree seedlings at treeline. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.ff574
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