TSA (version 0.99)

veilleux: An experimental prey-predator time series

Description

A data frame consisting of bivariate time series from an experiment for studying prey-predator dynamics. The first time series consists of the numbers of prey individuals (Didinium natsutum) per ml measured every twelve hours over a period of 35 days; the second time series consists of the corresponding number of predators (Paramecium aurelia) per ml.

Usage

data(veilleux)

format

The format is: mts [1:71, 1:2] 15.7 53.6 73.3 93.9 115.4 ... - attr(*, "dimnames")=List of 2 ..$ : NULL ..$ : chr [1:2] "Didinium" "Paramecium" - attr(*, "tsp")= num [1:3] 0 35 2 - attr(*, "class")= chr [1:2] "mts" "ts"

source

http://www-personal.buseco.monash.edu.au/~hyndman/TSDL/

References

Veilleux (1976) "The analysis of a predatory interaction between Didinium and Paramecium", Masters thesis, University of Alberta. Jost & Ellner (2000) "Testing for predator dependence in predator-prey dynamics: a non-parametric approach", Proceedings of the Royal Society of London B, 267, 1611-1620.

Examples

data(veilleux)
## maybe str(veilleux) ; plot(veilleux) ...