Abundance estimation with a categorical covariate subject to missing in continuous-time capture-recapture studies. (English) Zbl 07529935
Summary: In continuous-time capture-recapture experiments, individual heterogeneity has a large effect on the capture probability. To account for the heterogeneity, we consider an individual covariate, which is categorical and subject to missing. In this article, we develop a general model to summarize three kinds of missing mechanisms, and propose a maximum likelihood estimator of the abundance. A likelihood ratio confidence interval of the abundance is also proposed. We illustrate the proposed methods by simulation studies and a real data example of a bird species prinia subflava in Hong Kong.
MSC:
| 62-XX | Statistics |
Keywords:
abundance; continuous-time capture-recapture; missing covariate; maximum likelihood estimationReferences:
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