DispersalSimulator: Global function to simulate evolution on a sphere

In laurasoul/dispeRse: Models For Paleobiogeography

Description

Global function to generate simulated continents and clades on a sphere

Usage

DispersalSimulator(
  N_steps = 1000,
  organism_multiplier = 5,
  N_continents = 7,
  radius = 2000,
  start_configuration = "random separate",
  squishiness = 0.25,
  stickiness = 0.95,
  continent_speed_mean = 5,
  continent_speed_sd = 2,
  organism_step_sd = 100,
  organism_step_shape = 1,
  b = 0.1,
  d = 0.05,
  sweepstakes = 0,
  EarthRad = 6367.4447,
  polar = FALSE
)

Arguments

N_steps	The number of time steps in the simulation.
organism_multiplier	The number of organism time steps to be taken per continent time step.
N_continents	The (maximum) number of individual continents.
radius	The radius of each circular continent.
start_configuration	One of "random separate", "random overlap", "supercontinent", or "max separate".
squishiness	A value from 0 (continents can never overlap) to 1 (continents can overlap completely).
stickiness	Probability of two conjoined continents remaining conjoined in the next time step.
continent_speed_mean	Mean continent speed (kilometers per time step).
continent_speed_sd	Standard deviation of continent speed (kilometers per time step).
organism_step_sd	Standard deviation used for random walk draws for organisms.
organism_step_shape	Shape parameter to use for drawing bearings for organisms.
b	Per-lineage birth (speciation) rate.
d	Per-lineage death (extinction) rate.
sweepstakes	The probability of a sweepstakes dispersal occuring each time an organism hits the coast.
EarthRad	Radius of the Earth in kilometres.
polar	Whether continents are allowed to exist exactly at the poles.

Details

Nothing yet.

Value

A magic table of awesomeness.

Author(s)

Laura C. Soul [e-mail] and Graeme T. Lloyd [e-mail]

Examples

#DispersalSimulator(N_steps = 100, organism_multiplier = 5, N_continents = 2, radius = 2000,
#  start_configuration = "random separate", squishiness = 0.25, stickiness = 0.95,
#  continent_speed_mean = 5, continent_speed_sd = 2, organism_step_sd = 100, sweepstakes = 0, 
#  b = 0.1, d = 0.05, EarthRad = 6367.4447,  polar = FALSE)

laurasoul/dispeRse documentation built on May 25, 2021, 4:50 a.m.