期刊
ECOLOGY
卷 93, 期 11, 页码 2336-2342出版社
WILEY
DOI: 10.1890/11-2241.1
关键词
behavioral state; Bison bison; maximum likelihood; random effects; random walk; semi-Markov model; state-space model; telemetry data
类别
资金
- Engineering and Physical Sciences Research Council (ESPRC) [EP/F069766/1]
- Engineering and Physical Sciences Research Council [EP/F069766/1] Funding Source: researchfish
- EPSRC [EP/F069766/1] Funding Source: UKRI
We discuss hidden Markov-type models for fitting a variety of multistate random walks to wildlife movement data. Discrete-time hidden Markov models (HMMs) achieve considerable computational gains by focusing on observations that are regularly spaced in time, and for which the measurement error is negligible. These conditions are often met, in particular for data related to terrestrial animals, so that a likelihood-based HMM approach is feasible. We describe a number of extensions of HMMs for animal movement modeling, including more flexible state transition models and individual random effects (fitted in a non-Bayesian framework). In particular we consider so-called hidden semi-Markov models, which may substantially improve the goodness of fit and provide important insights into the behavioral state switching dynamics. To showcase the expediency of these methods, we consider an application of a hierarchical hidden semi-Markov model to multiple bison movement paths.
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