User Tools

Site Tools


This is an old revision of the document!

Experimental data from randomized complete blocks

Data source

Example data, coming with the book of Šmilauer & Lepš (2014), originally published in Špačková et al. (1998)

Description of dataset

Experimental data studying the effect of dominant species, plant litter and moss on species composition of wet meadow plant community, with special focus on seedling recruitment. The experiment was established in four randomised complete blocks, the treatment had four levels, and the community composition was measured once. The experiment was established in March 1994, shortly after snowmelt. Each of the four randomized blocks contained four plots, each with a different treatment: (1) control plot, where the vegetation remained undisturbed, (2) a plot with the removal of litter, (3) a plot with the removal of dominant species Nardus stricta, and (4) a plot with the removal of litter and mosses (to remove only mosses without litter was not technically possible).


Experiment was conducted in experimental wet meadow Ohrazení, located around 10 km SE of Ceske Budejovice, Czech Republic. The vegetation can be classified into alliances Molinion and Violion caninae.

Environmental variables

Name of variableDescription
MOWINGMowing (each year in June or July)
FERTILFertilized (65g NPK/m2)
REMOVDominant removal (Molinia caerulea) using screw-driver (conducted the first year and repeated every year if necessary)
YEARYear of observation (0 = 1994, i.e. before the experiment started, 1-3 = 1995-1997)
Yr0-Yr3Year of observation (dummy variable)
P1-P24Plot code (can be used as covariable)

Download data

  • Seedl.xlsx - MS Excel format file, containing species data, environmental variables, description of experimental design and other information (this file comes with the book of Šmilauer & Lepš (2014), Chapter 15, Case study 4)

Script for importing data into R

ohrazeni.spe <- read.delim ('', row.names = 1)
ohrazeni.env <- read.delim ('', row.names = 1)


  • Špačková, I., Kotorová, I. & Lepš, J. (1998) Sensitivity of seedling recruitment to moss, litter and dominant removal in an oligotrophic wet meadow. Folia Geobotanica, 33“ 17-30. pdf
  • Šmilauer, P. & Lepš, J. (2014) Multivariate Analysis of Ecological Data using Canoco 5. Second Edition. Cambridge University Press, Cambridge, UK. (website with example data)
en/data/removal_experiment.1428013192.txt.gz · Last modified: 2017/10/11 20:36 (external edit)