loadDispersalPathogen: Load a pathogen dispersal matrix
Description
It loads one of the five built-in vectorised dispersal matrices of rust fungi associated with the
five built-in landscapes. Landscape and DispersalPathogen ID must be the same.
Usage
loadDispersalPathogen(id = 1)
Value
a vectorised dispersal matrix.
Arguments
id
a matrix ID between 1 to 5 (must match the ID of the landscape loaded with
loadLandscape).
Details
landsepi includes built-in dispersal matrices to represent rust dispersal in the
five built-in landscapes. These have been computed from a power-law dispersal kernel:
\( g(d) = ((b-2)*(b-1) / (2*pi*a^2)) * (1 + d/a)^(-b) \)
with a=40 the scale parameter and b=7 a parameter related to the width of the dispersal kernel.
The expected mean dispersal distance is given by 2*a/(b-3)=20 m.