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Isle Royale Wolf-Moose Predator-Prey Simulation (Wrapper Shell)

isle_royale_sim.Rd

Backward-compatible wrapper for initializing, running, and visualizing the Isle Royale wolf-moose spatial predator-prey model using the generalized `ecosystem_sim` engine.

Usage

init_isle_royale_sim(
  year = 1980,
  n_moose = NULL,
  n_wolves = NULL,
  hex_diameter = 0.01,
  datafile = "",
  features_rds = NULL,
  landmarks_rds = NULL
)

run_isle_royale_sim(sim_obj, nstep = 1000, refresh = 10, ...)

ggplot_isle_royale_sim(x, ...)

Arguments

year

Target baseline year from `wolf_moose.csv` (1980-2019, default: 1980).

n_moose

Initial number of moose individuals (default: looked up from `wolf_moose.csv`).

n_wolves

Initial number of wolf individuals (default: looked up from `wolf_moose.csv`).

hex_diameter

Diameter of hexagonal substrate mesh (default: 0.01 degrees).

datafile

Optional custom datafile directory path.

features_rds

Optional path or `sf` object for custom site habitat features.

landmarks_rds

Optional path or `sf` object for custom site landmarks.

sim_obj

An object of class `isle_royale_sim` or `ecosystem_sim`.

nstep

Number of simulation steps to run (default: 1000).

refresh

Refresh step interval (default: 10).

...

Additional plot options.

x

An object of class `isle_royale_sim`.

Value

`init_isle_royale_sim`: An S3 object of class `c("isle_royale_sim", "ecosystem_sim", "ewing")`.

Updated simulation object.

A `ggplot` visualization.