| landscape {steps} | R Documentation |
Create a landscape object.
Description
A landscape object is used to store spatially-explicit information on population, habitat suitability, carrying_capacity and miscellaneous landscape information.
Usage
landscape(population, suitability = NULL, carrying_capacity = NULL, ...)
Arguments
population |
a raster stack (grid cell-based) with one layer for each life stage. |
suitability |
an optional raster layer or stack (multiple layers) containing habitat suitability values for all cells in a landscape. Note, using a raster stack assumes that the user has provided a layer for each intended timestep in a simulation. |
carrying_capacity |
an optional raster layer specifying carrying capacity values for all cells in a landscape or a function defining how carrying capacity is determined by habitat suitability. |
... |
named raster objects representing different aspects of the landscape used to modify the landscape object in a simulation. Note, this is intended to store objects that are accessed by dynamic functions and used to modify the landscape in a simulation. Also, further arguments passed to or from other methods. |
Details
A landscape object is modified in each timestep of a simulation. During a simulation, population, habitat suitability or carrying capacity in a landscape object are changed based on dynamic functions selected or created by the user.
Value
An object of class landscape
Examples
# Example of setting up a landscape object.
## Not run:
ls <- landscape(population = egk_pop, suitability = egk_hab, carrying_capacity = egk_k)
pd <- population_dynamics(change = growth(egk_mat))
simulation(landscape = ls, population_dynamics = pd, habitat_dynamics = NULL, timesteps = 20)
## End(Not run)