CreateCompositeDispersalMatrix: Create the composite dispersal matrix
In akeyel/spatialdemography: A Spatially Explicit Metacommunity Model

Description Usage Arguments Details Value Note Author(s) References

Create a composite dispersal matrix for the dispersal portion of the model

1	CreateCompositeDispersalMatrix(DispersalProbabilities, p, S, M_sub)

`DispersalProbabilities`	The dispersal probabilities from each cell to every other cell in the landscape
`p`	Number of cells in the landscape
`S`	Number of life-stages in the model (currently needs to be 4)
`M_sub`	A template matrix of the appropriate dimensions to fill in.

This matrix consists of S*S submatrices of dimension p x p describing the dispersal probability between patches: Where p is the number of patches, S is the number of stages (here 4). Only diagonal submatrixes, which describe spatial movement of individuals of a given stage between patches, can contain non-zero matrix entries. We assume that only individuals of stage 1 (mobile seeds) move between patches, therefore only the submatrix M1<-1 contains non-zero off-diagonal matrix entries! The off-diagonal entries of M1<-1 describe the probability of seed movement between patches of the landscape. The diagonal entries describe the probability that mobile seeds stay in the local patch, which is 1-u (seed dispersal ratio). All other diagonal submatrices are identity matrices (ones in the diagonal) as all individuals of these stages stay put. 0<-0 O O O O 1<-1 O O O O 2<-2 O O O O 3<-3

returns a dispersal matrix for controlling seed dispersal.

WARNING While S is an input, this function will ONLY work for S = 4.

Jakob Gerstenlauer and Alexander "Sasha" Keyel

Hunter, C.M. & Caswell, H. (2005). The use of the vec-permutation matrix in spatial matrix population models. Ecological modelling, 188, 15-21.

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