palaeoSig (version 2.0-3)

abundances: Generates abundances

Description

Generates species abundances based on species response functions and environmental variables.

Usage

abundances(env, spp, nc)

Arguments

env

Environmental variables. Usually generated by make.env. Users may as well supply own environemntal variables.

spp

Species parameters. Usually generated by species.

nc

Number of counts to be simulated. If omitted no simulation of the counting process is carried out.

Value

spp

Data frame containing species abundances.

env

Data frame containing environmental variables.

%% ...

References

Minchin, P.R. (1987) Multidimensional Community Patterns: Towards a Comprehensive Model. Vegetatio, 71, 145-156.

See Also

make.env, species

Examples

# NOT RUN {
spec <- species(nspp = 30,ndim = 10,Amax = runif,fun = runif, xpar = c(-50,150),
    srange = 200, alpha = 4, gamma = 4)
env.var <- make.env(100,elen =rep(100,10),emean = rep(50,10), edistr ='uniform',
    ndim = 10)
spec.abun <- abundances(env.var,spec,200)
# }