net.reproductive.rate: Net reproductive rate

Description Usage Arguments Details Value Note Author(s) References See Also Examples

View source: R/net.reproductive.rate.R

Description

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

Usage

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Arguments

A

projection matrix

...

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

Details

see section 5.3.4 in Caswell (2001).

Value

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

Note

Previous versions required separate T and F matrices as input

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

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

popbio documentation built on May 4, 2018, 1:04 a.m.