theory/ a primer: how to combine predictive rasters that encompass x% of each target

Discussion created by kendrakarr on Jul 20, 2012
I did a quick search and did not come across this question, at least directly.

I have made several predictive models for species abundance/probability of occurrence, based upon visual surveys and multivariate analyses of 'habitat' parameters.  These models span several scales, country-> site for action, one for each scale and target.  Additionally, I have estimates (derived from an independent predictive model) of density, for species A to species X.  I am trying to figure out how to define (calculate/draw) the area needed  for x% of each species of interest, within the smallest scale of resolution.
thanks for any suggestions! If this makes sense at all.