bd: basic one-species continuous-time population model

In bbolker/bio3ss3: R stuff for Biology 3SS3 @ McMaster

Description

show plots of demographic parameters or time dynamics

Usage

bd(b0 = 1, bDD = NULL, bAllee = NULL, d0 = 0.5, dDD = NULL,
  dAllee = NULL, N0 = 0, logScale = FALSE, timeMax = 20, steps = 100,
  popMax = 100, popSteps = 100, reportPcTotal = "b", reportDiff = FALSE,
  title = "", tlab = "Time (years)", plab = "Population size (number)",
  fontSize = 1, legendSize = 1, printPlots = TRUE, plotType = "ggplot")

Arguments

timeMax	maximum time for dynamics plot [time]
steps	number of steps for dynamics plot
popMax	maximum population for demographic parameter plot [number]
popSteps	number of steps for demographic parameter plot
b0	per capita birth rate at zero density [1/time]
bDD	characteristic density for exponential decrease in per capita birth rate with increasing population density [number]
bAllee	characteristic scale for Allee effect in birth rate [number]
d0	per capita death rate at zero density [1/time]
dDD	characteristic density for exponential increase in per capita death rate with increasing population density [number]
dAllee	characteristic scale for Allee effect in death rate [number]
N0	initial population size for dynamics plot [number]: if N0=0, simulations of time dynamics will not be run nor plotted
reportPcTotal	whether to plot per capita rates ("p"), total rates ("t"), both ("b"), or neither ("n")
reportDiff	whether to plot the overall growth rate (birth-death) rather than birth and death separately
fontSize	scaled font size
legendSize	scaled legend size (base plots only)
title	plot title
tlab	label for time axis
plab	label for population size axis
printPlots	print plots (alternatively, return a list of plots)?
plotType	"ggplot2" or "base"
logScale	make y-axis logarithmic (for time dynamics only)?

Examples

bd()     ## basic plot
## set initial population size to something other than 0
## in order to get a dynamics plot
bd(N0=1)

bbolker/bio3ss3 documentation built on May 11, 2019, 9:28 p.m.