Quantify spatial heterogeneity at different scales

Discussion created by JoseeRousseau on Feb 15, 2013
Latest reply on Feb 19, 2013 by JoseeRousseau
I have a raster layer representing bird abundance and would like to quantify the spatial heterogeneity of their abundance at 3 scales.  Each scales is represented by a vector layer with a particular size polygons. 

Any recommendations on which (raster) tool could help me? 

Thank you!