nicheEquivalency

From dismo v1.3-3 by Robert Hijmans

Niche equivalency

Compute niche equivalency for two species following Warren et al. (2009). The statistic ranges from 0 to 1.

Usage

nicheEquivalency(sp1, sp2, predictors, n=99, model=maxent, verbose=TRUE, ...)

Arguments

sp1: coordinates for species 1 (matrix with (x, y) or (lon, lat), or SpatialPoints)
sp2: coordinates for species 2 (matrix with (x, y) or (lon, lat), or SpatialPoints)
predictors: Raster object with environmental variables
n: integer. Number of randomizations
model: function. modeling algorithm to me used
verbose: logical. If TRUE some progress indicators are printed
...: additional arguments (none)

Value

numeric

References

Warren, D.L., R.E. Glor, M. Turelli, 2008. Environmental niche equivalency versus conservatism: quantitative approaches to niche evolution. Evolution 62:2868-2883.

Documentation reproduced from package dismo, version 1.3-3, License: GPL (>= 3)

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