Beverton-Holt function

Arguments

R

a numeric vector of species growth rates

N

a numeric vector of species population sizes

alpha

the competition coefficient see alphaterm() for its computation

Details

$$N_{t+1, i, x} = \frac{R_{i, x} \times N_{t, i, x}}{1 + A \times \alpha}$$ where t is time, i is the species of interest and x the patch it occupies.