Takes the density-independent rates \(R_{di}\) of egg production and returns reduced, density-dependent rates \(R_{dd}\) given as $$R_{dd} = R_{di} \exp{- b R_{di}}$$

RickerRDD(rdi, species_params, ...)

Arguments

rdi

Vector of density-independent reproduction rates \(R_{di}\) for all species.

species_params

A species parameter dataframe. Must contain a column ricker_b holding the coefficient b.

...

Unused

Value

Vector of density-dependent reproduction rates.

See also

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