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Modelling age variation in survival and reporting rates for recovery models

Catchpole, Edward A., Freeman, Stephen N., Morgan, Byron J. T. (1995) Modelling age variation in survival and reporting rates for recovery models. Journal of Applied Statistics, 22 (5-6). pp. 597-609. ISSN 0266-4763. (doi:10.1080/02664769524487) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1080/02664769524487

Abstract

In this paper, we focus on models for recovery data from birds ringed as young. In some cases, it is important to be able to include in these models a degree of age variation in the reporting probability. For certain models this has been found, empirically, to result in completely flat likelihood surfaces, due to parameter redundancy. These models cannot then be fitted to the data, to produce unique parameter estimates. However, empirical evidence also exists that other models with such age variation can be fitted to data by maximum likelihood. Using the approach of Catchpole and Morgan (1996b), we can now identify which models in this area are parameter-redundant, and which are not. Models which are not parameter-redundant may still perform poorly in practice, and this is investigated through examples, involving both veal and simulated data. The Akaike Information Criterion is found to select inappropriate models in a number of instances. The paper ends with guidelines for fitting models to data from birds ringed as young, when age dependence is expected in the reporting probability.

Item Type: Article
DOI/Identification number: 10.1080/02664769524487
Subjects: H Social Sciences > HA Statistics
Divisions: Faculties > Sciences > School of Mathematics Statistics and Actuarial Science > Statistics
Depositing User: P. Ogbuji
Date Deposited: 06 Jun 2009 16:23 UTC
Last Modified: 11 Jun 2019 10:52 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/19750 (The current URI for this page, for reference purposes)
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