Batcapture {gpk}

Understanding seasonality and species composition of bat population

Description

Scientists studied Bat community on Barro Colorado island in Panama in late 70's. Bats were captured on many nights regularly throughout the year to understand species composition of the bat community and its dynamics through the year. Following questions are of interest: a) For a given species, do capture proportions change with season? If yes, how? b) Are capture proportions over months similar across species? If not, what are the salient differences? c) Consider the variable, average number caught per night in a month. Does it depend on number of nights/month/ species?

Usage

data(Batcapture)

Format

A data frame with 8 observations on the following 23 variables.

Species

The type of species

Jan.Netting.nights

The January Netting nights

Jan.Number.caught

The January number count

Feb.Netting.nights

The February netting nights

Feb.Number.caught

The February number count

Mar.Netting.nights

The March netting nights

Mar.Number.caught

The March number count

Apr.Netting.nights

The April netting nights

Apr.Number.caught

The April number count

May.Netting.nights

The May netting nights

May.Number.caught

The May number count

Jun.Netting.nights

The June netting nights

Jun.Number.caught

The June number caught

Sep.Netting.nights

The September netting nights

Sep.Number.caught

The September number count

Oct.Netting.nights

The October netting nights

Oct.Number.caught

The October number count

Nov.Netting.nights

The November netting nights

Nov.Number.caught

The November number count

Dec.Netting.nights

The December netting nights

Dec.Number.caught

The December number caught

Total.Netting.nights

The total netting nights

Total.Number.caught

The total number count

Details

Try out Time trends, contingency tables and regression, and comment.

Source

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

Examples

data(Batcapture)