- species.1
An enmtools.species object
- species.2
An enmtools.species object
- env
A set of environmental layers
- nreps
The number of pseudoreplicates to perform
- layers
A vector of length 2 containing the names of the layers to be used. If no layer names are provided and there are more than two layers in env, enmtools will perform a pca and use the top two layers from that.
- test.type
Symmetric or asymmetric test. An asymmetric test is bguivalent to the "one.sided" option in the ecospat documentation, while a symmetric one would be two-sided.
- th.sp
Quantile of species densities used as a threshold to exclude low species density values. See documentation for ecospat.grid.clim.dyn.
- th.env
Quantile of environmental densities across study sites used as threshold to exclude low
environmental density values. See documentation for ecospat.grid.clim.dyn.
- R
Resolution of the grid. See documentation for ecospat.grid.clim.dyn.
- nback
Number of background points to use for density calculations.
- bg.source
Source for drawing background points. If "points", it just uses the background points that are already in the species object. If "range", it uses the range raster. If "env", it draws points at randome from the entire study area outlined by the first environmental layer.
- verbose
Controls printing of various messages progress reports. Defaults to FALSE.
- ...
Further arguments to be passed to check.bg