Table of Contents
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).
Locality
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 variable | Description |
|---|---|
| treatment | Name of the treatment: Cont = control, Litter = litter removed, Nardus = dominant species removed, Li+Mo - litter + mosses removed |
| block | Block number |
| seedlsum | Total number of seedlings per plot |
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
seedlings.spe <- read.delim ('https://raw.githubusercontent.com/zdealveindy/anadat-r/master/data/seedl-spe.txt', row.names = 1) seedlings.env <- read.delim ('https://raw.githubusercontent.com/zdealveindy/anadat-r/master/data/seedl-env.txt', row.names = 1)
References
- 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)