This is a topic that was only briefly discussed in the forum, and a while ago, so I'll bring this up again in hopes that something new came up.
I mist-netted birds on 15 sites within a research station; sampling was carried out every 3 months, for a total of 9 sampling occasions. I'm interested in estimating survival rates and, more specifically, if survival rates change with habitat type (there are 5 sites in primary, secondary, and altered forest, respectively; so I want to compare these 3 groups).
However, I have some gaps in the data, meaning that each of the 15 sites was not sampled for at least one of the 9 occasions; the skipped occasions differ among sites.
How can I deal with these missing data? Is there a way to truncate the capture histories, or is there a way to code for missing data?
Renata