dispersal: Generate dispersal kernel functions

In mstrimas/metacapa: Metapopulation Capacity-based Conservation Prioritization

Description

Generate linear or negative exponential dispersal kernel functions, taking a distance, d, and returning the probability density of dispersing that distance.

Usage

dispersal_linear(dmax)

dispersal_negexp(alpha)

Arguments

dmax	numeric; maximum dispersal distance.
alpha	numeric; exponential decay rate parameter, equal to the inverse of the mean dispersal distance.

Details

The available dispersal kernel functions are:

• dispersal_linear: decays linearly from 1 and d = 0 to 0 at d = dmax.

• dispersal_negexp: decays exponentially with rate parameter alpha.

Value

A dispersal kernel function.

Examples

dl <- dispersal_linear(10)
dne <- dispersal_negexp(1/5)
dl(5)
dne(5)

mstrimas/metacapa documentation built on Dec. 3, 2019, 3:16 p.m.