ClostExp {primer}

Closterium Population Data

Description

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

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 Steiner, C. E. (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)
#lattice::xyplot(log10(No.per.ml) ~ Day|Nutrients, data=ClostExp, groups=rep, type='l')