Teasel: Population dynamics model transition matrix of teasel

Description

Transition matrix of the population dynamics model of teasel (Dipsacus sylvestris), a European perennial weed, as discussed in Caswell (2001), and in Soetaert and Herman, (2009)

The life cycle of teasel can be described by six stages:

dormant seeds < 1yr (DS 1yr)
dormant seeds 1-2yr (DS 2yr)
small rosettes <2.5cm (R small)
medium rosettes 2.5-18.9 cm (R medium)
large rosettes >19 cm (R large)
flowering plants (F)

The matrix contains the transition probabilities from one compartment (column) to another (row).

Usage

Teasel

Arguments

Format

matrix with transition probabilities, where element ij denotes transition from compartment j to i

rownames and columnames are the component names

References

Caswell, H. 2001. Matrix population models: construction, analysis, and interpretation. Second edition. Sinauer, Sunderland, Mass.

Karline Soetaert and Peter Herman. 2009. A practical guide to ecological modelling. Using R as a simulation platform. Springer.

Examples

Run this code

# NOT RUN {
curves <- matrix(nrow = ncol(Teasel), ncol = ncol(Teasel), 0)
curves[3,1] <- curves[1,6] <- -0.35
curves[4,6] <- curves[6,4] <- curves[5,6] <- curves[6,5] <- 0.08
curves[3,6] <- 0.35
  
plotmat(Teasel, pos = c(3, 2, 1), curve = curves, lwd = 1, box.lwd = 2,
        cex.txt = 0.8, box.cex = 0.8, box.size = 0.08, arr.length = 0.5,
        box.type = "circle", box.prop = 1, shadow.size = 0.01,
        self.cex = 0.6, my = -0.075, mx = -0.01, relsize = 0.9,
        self.shifty = 0, self.shiftx = c(0, 0, 0.125, -0.12, 0.125, 0),
        main = "Dispsacus sylvestris")
# }