Fig 5. Occupancy probability (+95% CI) of cormorants and egrets on catfish ponds in the Mississippi Delta by adjacent pond index.

Estimates were made using the top ranked model for each species, while keeping all other variables at their mean value. This index is based on the general isolation of catfish ponds relative to adjacent ponds (i.e. 1 = a pond with only one other adjacent pond present at any given edge).