Description Usage Arguments Value Author(s) References
Compute niche equivalency for two species following Warren et al. (2009). The statistic ranges from 0 to 1.
1 2 |
nicheEquivalency(sp1, sp2, predictors, n=99, model=maxent, verbose=TRUE, ...)
|
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 |
... |
additional arguments (none) |
numeric
Brian Anacker. Based on a similar function in by Christoph Heibl in the phyloclim package
Warren, D.L., R.E. Glor, M. Turelli, 2008. Environmental niche equivalency versus conservatism: quantitative approaches to niche evolution. Evolution 62:2868-2883.
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