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Towards built-in capture-recapture mixed models in program E-SURGE

Abstract : We consider the first steps towards implementing capture-recapture mixed models in program E-SURGE. The main issue when estimating the parameters of mixed models is that integrals associated with the random effects distributions need to be dealt with. Rather than using a Bayesian approach with Markov chain Monte Carlo and in line with Gimenez and Choquet (2010), we show that a frequentist approach using numerical integration can be tractable when independent clusters of individuals can be identified. In this case, the maximum likelihood approach is time-efficient because the dimension of the integral for the likelihood is small. This allows us to integrate the likelihood by an efficient and appropriate quadrature method with a procedure for error control. Building on program E-SURGE (Choquet, Rouan, and Pradel, 2009), we extend the GEMACO language (Choquet, 2008) to incorporate random effects in a large set of capture-recapture models, including multievent models (Pradel, 2005). To illustrate the flexible implementation of mixed models in E-SURGE, we consider two real examples, one with an individual random effect and one with group random effects. Future developments and limitations are also discussed.
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Contributor : Olivier Gimenez Connect in order to contact the contributor
Submitted on : Thursday, January 6, 2022 - 4:15:17 PM
Last modification on : Friday, May 20, 2022 - 9:04:16 AM
Long-term archiving on: : Thursday, April 7, 2022 - 7:44:44 PM


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R. Choquet, O. Gimenez. Towards built-in capture-recapture mixed models in program E-SURGE. Wilson journal of ornithology, Wilson Ornithological Society, 2012, 152 (S2), pp.625-639. ⟨10.1007/s10336-010-0613-x⟩. ⟨hal-03515276⟩



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