EarthwormSeason: Population dynamics of earthworms

In gpk: 100 Data Sets for Statistics Education

Description

Earthworms are known to play an important role in farming by improving soil fertility. They enhance physical, chemical and biological aspects of soil fertility. Hence understanding their population dynamics is important. In one of the studies on earthworms in cultivated soils, over 2000 individual worms belonging to 6 species were collected. Samples were collected from three crops for two consecutive years. Questions of interest are: a) How does the worm density change with season? b) How does the worm biomass change with season? c) What is the relationship between density and biomass?

Usage

data(EarthwormSeason)

Format

A data frame with 46 observations on the following 3 variables.

Month

Month

Density

the number of earthworms per square meter

Biomass

biomass, fresh weight per square meter

Details

Try out time series techniques and regression methods.

Source

http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html

Examples

data(EarthwormSeason)

gpk documentation built on May 2, 2019, 12:39 p.m.