Flexible and practical modeling of animal telemetry data: hidden Markov models and extensions

Langrock, R., King, R., Matthiopoulos, J. , Thomas, L., Fortin, D. and Morales, J.M. (2012) Flexible and practical modeling of animal telemetry data: hidden Markov models and extensions. Ecology, 93(11), pp. 2336-2342. (doi: 10.1890/11-2241.1)

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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.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Matthiopoulos, Professor Jason
Authors: Langrock, R., King, R., Matthiopoulos, J., Thomas, L., Fortin, D., and Morales, J.M.
College/School:College of Medical Veterinary and Life Sciences > Institute of Biodiversity Animal Health and Comparative Medicine
Journal Name:Ecology
Publisher:Ecological Society of America
ISSN (Online):1939-9170
Copyright Holders:Copyright © 2012 Ecological Society of America
First Published:First published in Ecology 93(11):2336-2342
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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