Nonidentifiability of Population Size from Capture-Recapture Data with Heterogeneous Detection Probabilities
Version of Record online: 11 DEC 2003
Volume 59, Issue 4, pages 1123–1130, December 2003
How to Cite
Link, W. A. (2003), Nonidentifiability of Population Size from Capture-Recapture Data with Heterogeneous Detection Probabilities. Biometrics, 59: 1123–1130. doi: 10.1111/j.0006-341X.2003.00129.x
- Issue online: 11 DEC 2003
- Version of Record online: 11 DEC 2003
- Received February 2002. Revised May 2003. Accepted June 2003.
- Detection probability;
- Population estimation;
- Wildlife statistics
Summary. Heterogeneity in detection probabilities has long been recognized as problematic in mark-recapture studies, and numerous models developed to accommodate its effects. Individual heterogeneity is especially problematic, in that reasonable alternative models may predict essentially identical observations from populations of substantially different sizes. Thus even with very large samples, the analyst will not be able to distinguish among reasonable models of heterogeneity, even though these yield quite distinct inferences about population size. The problem is illustrated with models for closed and open populations.