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Integrative modelling of animal movement: incorporating in situ habitat and behavioural information for a migratory marine predator

journal contribution
posted on 2023-05-17, 22:25 authored by Sophie BestleySophie Bestley, Jonsen, ID, Mark HindellMark Hindell, Guinet, C, Charrassin, JB
A fundamental goal in animal ecology is to quantify how environmental (and other) factors influence individual movement, as this is key to understanding responsiveness of populations to future change. However, quantitative interpretation of individual-based telemetry data is hampered by the complexity of, and error within, these multi-dimensional data. Here, we present an integrative hierarchical Bayesian state-space modelling approach where, for the first time, the mechanistic process model for themovement state of animals directly incorporates both environmental and other behavioural information, and observation and process model parameters are estimated within a single model. When applied to a migratory marine predator, the southern elephant seal (Mirounga leonina), we find the switch from directed to resident movement state was associated with colder water temperatures, relatively short dive bottom time and rapid descent rates. The approach presented here can have widespread utility for quantifying movement–behaviour (diving or other)–environment relationships across species and systems.

History

Publication title

Proc. R. Soc. B.

Volume

280

Issue

1750

Article number

20122262

Number

20122262

Pagination

1-9

ISSN

1471-2954

Department/School

Institute for Marine and Antarctic Studies

Publisher

The Royal Society Publishing

Place of publication

UK

Rights statement

Copyright 2012 The Author(s) Published by the Royal Society. All rights reserved.

Repository Status

  • Restricted

Socio-economic Objectives

Assessment and management of coastal and estuarine ecosystems

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