Calculate bird density maps using the distance-decay function used in SeabORD, via users specifying "proportion of UD lying within the foraging range"
Usage
calc_birddensmap_dd_pinfr(dmap, fr, pinfr, dmin = 1)
Arguments
- dmap
A raster containing the distance by sea from each grid cell to the population of interest
- fr
Foraging range, in kilometres
- pinfr
The proportion of the UD that is assumed to lie within a distance fr of the population: a numeric value between 0 and 1
Value
A raster containing the distance-decay map
20 Oct 2023: added "dmin" argument