Abundance estimates from CJS

questions concerning analysis/theory using program MARK

Re: Abundance estimates from CJS

Postby cooch » Thu Nov 09, 2017 8:12 pm

jlaake wrote:Both are possible problems. The first for animals that capture themselves and the second is correctable with a good design. However if you are going to make a general statement it would be that robust designs with closure is preferable and not that all cjs/js abundance estimates are not useful. But closure can often be suspect as well.


Agreed about RD (like most things, good design compensates for many problems). And, of course, closed sample estimation is based on a 'design choice' (sample when population is ~closed). Optimal, but not always practical.
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Re: Abundance estimates from CJS

Postby SoConfused » Sun Nov 12, 2017 2:14 pm

Thank you all so much for your comments. The sampling is fully random (one blessing), but that doesn't mean closure during sampling - some seasonal differences in recapture have been noticeable. Robust design models are on my list to try out next.
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