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Maximum penalized likelihood estimation in semiparametric capture-recapture-recovery models

Research output: Contribution to journalArticle

DOI

Author(s)

Theo Michelot, Roland Langrock, Thomas Kneib, Ruth King

School/Research organisations

Abstract

We discuss the semiparametric modeling of mark-recapture-recovery data where the temporal and/or individual variation of model parameters is explained via covariates. Typically, in such analyses a fixed (or mixed) effects parametric model is specified for the relationship between the model parameters and the
covariates of interest. In this paper, we discuss the modeling of the relationship via the use of penalized splines, to allow for considerably more flexible functional forms. Corresponding models can be fitted via numerical maximum penalized likelihood estimation, employing cross-validation to choose the smoothing parameters in a data-driven way. Our contribution builds on and extends the existing literature, providing a unified inferential framework for semiparametric mark-recapture-recovery models for open populations,
where the interest typically lies in the estimation of survival probabilities. The approach is applied to two real datasets, corresponding to grey herons (Ardea Cinerea), where we model the survival probability as a function of environmental condition (a time-varying global covariate), and Soay sheep (Ovis Aries), where
we model the survival probability as a function of individual weight (a time-varying individual-specific covariate). The proposed semiparametric approach is compared to a standard parametric (logistic) regression and new interesting underlying dynamics are observed in both cases.
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Details

Original languageEnglish
Pages (from-to)222-239
JournalBiometrical Journal
Volume58
Issue number1
Early online date20 Aug 2015
DOIs
StatePublished - Jan 2016

    Research areas

  • Cormack-Jolly-Seber model, Hidden Markov model, M-array, Nonparametric regression, P-splines

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