abd (version 0.1-21)

Earthworms: Earthworm Diversity and Soil Nitrogen Levels

Description

Number of earthworm species and total nitrogen content in the soil in 39 hardwood forest plots.

Usage

data(Earthworms)

source

Gundale, M.J., W.M. Jolly, and T.H. Deluca. 2005. Susceptibility of a northern hardwood forest to exotic earthworm invasion. Conservation Biology 19: 1075-1083.

References

http://www3.interscience.wiley.com/journal/118701215/abstract

Examples

data(Earthworms)
str(Earthworms)
xyplot(nitrogen ~ worm.species, Earthworms)