I am doing some simulations and would like to
create UDs directly as rasters (as opposed to
simulating point locations and then using a
kernel to create the UD). The most simple example
would be a bivariat-normal UD. I would then like
to calculate contour lines on those UDs using the
standard functions in adehabitat. However, I
realized that I don't know how the raster values
of the UD are scaled. I thought that this was a
probability surface and that they would sum to 1,
but that does not seem to be the case. So right
now my volume calculations and therefore my
contour lines are off. Any suggestions on how to
scale my UD rasters in order to get correct results?
Thanks a lot,
Mathias
Mathias Tobler, Ph.D.
Senior Researcher, Applied Animal Ecology
San Diego Zoo Institute for Conservation Research
15600 San Pasqual Valley Road
Escondido, California 92027-7000
Phone: ++1 (760) 747 8702 ext: 5759
www.zooconservation.org
"We are the science of saving species"
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