mizer (version 2.0.0)

SheperdRDD: Sheperd function to calculate density-dependent reproduction rate

Description

Takes the density-independent rates \(R_p\) of egg production and returns reduced, density-dependent rates \(R\) as $$R = \frac{R_p}{1+(b\ R_p)^c}$$

Usage

SheperdRDD(rdi, species_params, ...)

Arguments

rdi

Vector of density-independent reproduction rates \(R_p\) for all species.

species_params

A species parameter dataframe. Must contain columns sheperd_b and sheperd_c with the parameters b and c.

...

Unused

Value

Vector of density-dependent reproduction rates.

See Also

Other functions calculating density-dependent reproduction rate: BevertonHoltRDD(), RickerRDD(), constantRDD(), noRDD()