Estimation in the multinomial reencounter model - Where do migrating animals go and how do they survive in their destination area?

Autor: Schirmer S; Department of Mathematics and Computer Science, University of Greifswald, Walther-Rathenau-Straße 47, 17489 Greifswald, Germany; Swiss Ornithological Institute, Seerose 1, 6204 Sempach, Switzerland. Electronic address: saskia.schirmer@posteo.de., Korner-Nievergelt F; Swiss Ornithological Institute, Seerose 1, 6204 Sempach, Switzerland., von Rönn JAC; Swiss Ornithological Institute, Seerose 1, 6204 Sempach, Switzerland., Liebscher V; Department of Mathematics and Computer Science, University of Greifswald, Walther-Rathenau-Straße 47, 17489 Greifswald, Germany.
Jazyk: angličtina
Zdroj: Journal of theoretical biology [J Theor Biol] 2022 Jun 21; Vol. 543, pp. 111108. Date of Electronic Publication: 2022 Mar 30.
DOI: 10.1016/j.jtbi.2022.111108
Abstrakt: Spatial variation in survival has individual fitness consequences and influences population dynamics. Which space animals use during the annual cycle determines how they are affected by this spatial variability. Therefore, knowing spatial patterns of survival and space use is crucial to understand demography of migrating animals. Extracting information on survival and space use from observation data, in particular dead recovery data, requires explicitly identifying the observation process. We build a fully stochastic model for animals marked in populations of origin, which were found dead in spatially discrete destination areas. The model acts on the population level and includes parameters for use of space, survival and recovery probability. It is based on the division coefficient and the multinomial reencounter model. We use a likelihood-based approach, derive Restricted Maximum Likelihood-like estimates for all parameters and prove their existence and uniqueness. In a simulation study we demonstrate the performance of the model by using Bayesian estimators derived by the Markov chain Monte Carlo method. We obtain unbiased estimates for survival and recovery probability if the sample size is large enough. Moreover, we apply the model to real-world data of European robins Erithacus rubecula ringed at a stopover site. We obtain annual survival estimates for different spatially discrete non-breeding areas. Additionally, we can reproduce already known patterns of use of space for this species.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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