do.invasion: Implement invasion in MetaComeSE model

In akeyel/spatialdemography: A Spatially Explicit Metacommunity Model

Description

Manage invasion in the model. A certain number of species (num.invaders) are chosen to invade a certain number of cells in the landscape (cells.to.invade) at a particular propagule pressure (related to the species' reproductive rates).

Usage

do.invasion(nt1a.lst, spe, p, S, SpTraits, num.invaders = 1,
  cells.to.invade = 5, repro.proportion = 1)

Arguments

nt1a.lst	A list giving the locations of each species in each cell
spe	The number of species in the regional species pool
p	The number of cells in the landscape
S	The number of stages in the population model (= 4)
SpTraits	A dataframe containing the species traits
num.invaders	The number of species to have invade the landscape
cells.to.invade	The number of cells in the landscape to be invaded
repro.proportion	The proportion of a species' normal reproduction to assign to the landscape. E.g., if a species normally makes 1000 seeds, and repro.proportion is set to 0.5, 500 seeds will be assigned to each invaded cell. Similarly, a repro.proportion of 1.5 would lead to 1500 seeds.

Value

An updated n0.lst to include the invaders

akeyel/spatialdemography documentation built on May 12, 2019, 4:43 a.m.