My name is Chris Smith, a biologist currently working with some occupancy data on neotropical river otters. I have data from 10 river systems from Costa Rica, each with 4-6 segments per river; each segment is 450 m long. The segments are back to back, which creates problems with spatial autocorrelation (they are basically clustered in a linear format). I have been posting on the unmarked forum on google, and have had two recommendations: using river as a random effect or using Jim Hines' "Tigers on Trails: occupancy models for cluster sampling". I have been poking around package Rpresence for either of these and haven't found any sign of them. I was curious if
1) anyone knows if random effects can be used in Rpresence (and if so is it simply (1|river)? or
2) if any function for the clustered occupancy work had been introduced into Rpresence
Thanks in advance for any help,
Chris