dlogistic {primer}R Documentation

Discrete Logistic Growth

Description

Lotka-Volterra single species discrete population growth.

Usage

dlogistic(alpha = 0.01, rd = 1, N0 = 2, t = 15)

Arguments

alpha per capita negative density dependence (a positive value will result in the usual negative effect)
rd discrete growth increment
N0 initial population size
t end time point

Details

Of the form,

N[t+1] = N[t] + r[d] N[t] (1 - alpha N[t])

Value

Returns a vector of population sizes from N[0] to N[t], for integer time points.

Author(s)

Hank Stevens (HStevens@muohio.edu)

References

Stevens. M.H.H. 2009. A Primer of Ecology with R. Use R! Series. Springer.

See Also

clogistic, dlvcomp2

Examples

time <- 20
Ns <- dlogistic(t=20)
plot(0:time, Ns)

[Package primer version 0.1 Index]