Document Detail

Integrative modelling of animal movement: incorporating in situ habitat and behavioural information for a migratory marine predator.
MedLine Citation:
PMID:  23135676     Owner:  NLM     Status:  MEDLINE    
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 the movement 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.
Sophie Bestley; Ian D Jonsen; Mark A Hindell; Christophe Guinet; Jean-Benoît Charrassin
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-11-07
Journal Detail:
Title:  Proceedings. Biological sciences / The Royal Society     Volume:  280     ISSN:  1471-2954     ISO Abbreviation:  Proc. Biol. Sci.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-11-22     Completed Date:  2013-04-30     Revised Date:  2014-01-10    
Medline Journal Info:
Nlm Unique ID:  101245157     Medline TA:  Proc Biol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  20122262     Citation Subset:  IM    
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MeSH Terms
Animal Migration*
Antarctic Regions
Bayes Theorem
Cold Temperature
Computer Simulation
Ecology / methods*
Models, Biological
Predatory Behavior
Seals, Earless / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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