ClostExp {primer}R Documentation

Closterium population data

Description

Data set from an experiment testing whether trophic heterogeneity influences long term population sizes.

Usage

data(ClostExp)

Format

A data frame with 144 observations on the following 5 variables.

Nutrients
a factor with levels high low
No.per.ml
a numeric vector
Day
a numeric vector
rep
a factor with levels a b c d
ID
an ordered factor with levels a.low < d.low < c.low < b.low < c.high < a.high < d.high < b.high

Source

Stevens, M. H. H. and C. E. Steiner. 2006. Effects of predation and nutrient enrichment on a food web with edible and inedible prey. Freshwater Biology 51:666–671.

References

Stevens, M.H.H. 2009. A Primer of Ecology with R. Use R! Series. Springer.

Examples

data(ClostExp)
library(lattice)
xyplot(log10(No.per.ml) ~ Day|Nutrients, data=ClostExp, groups=rep, type='l')

[Package primer version 0.1 Index]