leslie {epimdr2}

A function to calculate asymptotic growth, sensitivity and elasticity for age-structured populations

Description

A function to calculate asymptotic growth, sensitivity and elasticity for age-structured populations

Usage

leslie(L)

Arguments

L

the Leslie matrix

Value

A list consisting of the following components:

lambda

the dominant eigen value of the Leslie matrix.

right.eigenvector

the dominant right eigen vector of the Leslie matrix, proportional to the stable age-distribution.

left.eigenvector

the dominant left eigen vector of the Leslie matrix representing the age-specific reproductive values.

elasticity

the elasticities.

sensitivity

the sensitivities.

References

Caswell, H. 2001. Matrix Population Models: Construction, Analysis, and Interpretation. 2nd edn Sinauer Associates Inc., Sunderland, MA,

Examples

fa<-c(0, 0.5, 1.2)
sa<-c(0.8, 0.8, 0)
L<-matrix(0, nrow=3, ncol=3)
#inserting fa vector in first row
L[1,]<-fa
#inserting sa in the subdiagonal:
L[row(L)==col(L)+1] <-sa[1:2]
leslie(L)