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Estimating animal behavior and residency from movement data

Citation

Pedersen, MW and Patterson, TA and Thygesen, UH and Madsen, H, Estimating animal behavior and residency from movement data, Oikos: A Journal of Ecology, 120, (9) pp. 1281. ISSN 0030-1299 (2011) [Refereed Article]

Copyright Statement

2011 The Authors. Oikos 2011 Nordic Society Oikos

DOI: doi:10.1111/j.1600-0706.2011.19044.x

Abstract

We present a process-based approach to estimate residency and behavior from uncertain and temporally correlated movement data collected with electronic tags. The estimation problem is formulated as a hidden Markov model (HMM) on a spatial grid in continuous time, which allows straightforward implementation of barriers to movement. Using the grid to explicitly resolve space, location estimation can be supplemented by or based entirely on environmental data (e.g. temperature, daylight). The HMM method can therefore analyze any type of electronic tag data. The HMM computes the joint posterior probability distribution of location and behavior at each point in time. With this, the behavioral state of the animal can be associated to regions in space, thus revealing migration corridors and residence areas. We demonstrate the inferential potential of the method by analyzing satellite-linked archival tag data from a southern bluefin tuna Thunnus maccoyii where longitudinal coordinates inferred from daylight are supplemented by latitudinal information in recorded sea surface temperatures.

Item Details

Item Type:Refereed Article
Keywords:behavioral ecology, data set, day length, estimation method, longitudinal gradient
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Conservation and Biodiversity
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Flora, Fauna and Biodiversity of environments not elsewhere classified
Author:Patterson, TA (Dr Toby Patterson)
ID Code:119760
Year Published:2011
Web of Science® Times Cited:41
Deposited By:Centre for Ecology and Biodiversity
Deposited On:2017-08-04
Last Modified:2017-09-29
Downloads:0

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