Abstract #300180

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JSM 2003 Abstract #300180
Activity Number: 249
Type: Contributed
Date/Time: Tuesday, August 5, 2003 : 10:30 AM to 12:20 PM
Sponsor: Biometrics Section
Abstract - #300180
Title: Continuous-Time Capture-Recapture Models with Heterogeneity, Time Variation, and Behavioural Response
Author(s): Liqun Xi*+
Companies: The University of Hong Kong
Address: , , ,
Keywords: baseline intensity function ; capture-recapture ; gamma distribution ; heterogeneity ; population size
Abstract:

This paper develops a class of continuous-time closed capture-recapture models. The capture intensity is allowed to vary with heterogeneity, time, and behavioural response. The heterogeneity effect is modeled as being gamma distributed. A unified likelihood-based approach is proposed to estimate population size. This approach is also easily extended to capture-recapture with known random-removal. Simulation results are presented to examine the performance of the proposed estimation procedures. A real data example is given for illustration.

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