Brook Trout
   Single Season Single Species

   This is from MARK demo files on occupancy.
   Collected via electrofishing three 50 m sections of streams at 77 sites in the Upper   
   Chattachochee River basin. 

   77 streams 3 occasions, 4 covariates: 
      elevation, cross   sectional area each occasion.

   See http://people.oregonstate.edu/~peterjam/occupancy_workshop/hands_on.htmlfor further information