net.reproductive.rate {popbio}

Net reproductive rate

Description

Calculates the net reproductive rate of a stage classified matrix using the dominant eigenvalue of the matrix R

Usage

net.reproductive.rate(A, ...)

Arguments

A

projection matrix

...

additional items are passed to splitA and are used to split A into T and F matrices

Value

Net reproductive rate. If the transition matrix is singular, then NA is returned.

Author(s)

Chris Stubben

References

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

See Also

see fundamental.matrix and generation.time for other age-specific traits

Examples

net.reproductive.rate(whale)
## fertilities in last column
net.reproductive.rate(teasel, r=1:6, c=6)
## Plot 3 from Calathea - values are not the same as p. 105 in Caswell.
sapply(calathea[9:12], net.reproductive.rate)