Estimating closed population size from capture-recapture data. This page provides R functions to fit some models of capture heterogeneity to estimate N, the size of a closed population, from capture-recapture data. This is joint work with Byron Morgan. In the most general model that we consider, captures are modelled as a mixture of binomial and beta-binomial counts. This generalises the beta-binomial model considered, for example, by Dorazio and Royle [Ref 1] and the (two-component form of) finite mixture model considered, for example, by Pledger [Ref 2]. Our new model is described in Refs  and  below, which also provide other references to the existing literature. There are important issues of identifiability in models of capture heterogeneity, see for example [Ref 5]. Our model does not resolve these problems, but it does offer a broad and flexible class of models within which to investigate and compare estimates of N.
Keywords for this software
References in zbMATH (referenced in 2 articles )
Showing results 1 to 2 of 2.
- McCrea, Rachel S.; Morgan, Byron J. T.: Analysis of capture-recapture data (2015)
- Morgan, B.J.T.; Ridout, M.S.: A new mixture model for capture heterogeneity (2008)