make.twosex.pop: Create population comprised of animals of 2 types (sexes)

In DistanceDevelopment/WiSP: Wildlife Simulation Package (wisp)

Description

A generic population is created that consists of 2 types of individuals. There is no explicit spatial organization to the population.

Usage

make.twosex.pop(abund = 100, prop.male = 0.5)

Arguments

abund	Specify the number of individuals (in groups of size=1) in the population
prop.male	Proportion of the generated population that is male

Details

This function has no provision for setting dispersion, group size, nor exposure heterogeneity for the population begin generated. This function is intended to be used in conjunction with two.samp.cir and its derivatives to examine the behavior of the change-in-ratio (CIR) estimator.

Value

Population object as described in setpars.population

Warning

More versatility in the attributes of the population created can be obtained by explicit calls to the functions that are called by make.twosex.pop, i.e., setpars.population.

Author(s)

Eric Rexstad, RUWPA [e-mail]

References

Borchers, Buckland, and Zucchini (2002), Estimating animal abundance: closed populations. Chapter 5 http://www.ruwpa.st-and.ac.uk/estimating.abundance

See Also

two.samp.cir, sim.cir.2, setpars.population

Examples

library(wisp)
example <- make.twosex.pop(abund=200, prop.male=0.4)
plot(example, title="Population constructed using make.twosex.pop")

DistanceDevelopment/WiSP documentation built on Sept. 18, 2020, 2:55 p.m.