You can input all of your density rasters into Band Collection Statistics to get a correlation matrix between all pairs of rasters. However, keep in mind that Pearson correlation coefficients assume independent samples, and your density maps will have spatial autocorrelation. Be careful before using these correlations to calculate p-values. Thanks Eric! So, is it correct to say that, no, there isn't a way to express *with statistical significance* which species' localities tend to spatially correlate? The approach you describe gives correlation values for pairs of density rasters, but one can't do statistical tests on them due to autocorrelation.
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