A new direction for differentiating animal activity based on measuring angular velocity about the yaw axis

dc.contributor.authorGunner, Richard
dc.contributor.authorWilson, Rory P.
dc.contributor.authorHolton, Mark D.
dc.contributor.authorScott, Rebecca
dc.contributor.authorHopkins, Phil
dc.contributor.authorDuarte, Carlos M.
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.contributor.institutionSwansea Lab for Animal Movement, Biosciences, College of Science, Swansea University, Swansea, UK
dc.contributor.institutionFuture Ocean Cluster of Excellence, GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
dc.contributor.institutionNatural Environmental Research Council, Polaris House, Swindon, UK
dc.date.accepted2020-06-09
dc.date.accessioned2020-07-16T08:52:05Z
dc.date.available2020-07-16T08:52:05Z
dc.date.issued2020-07-06
dc.date.published-online2020-07-06
dc.date.published-print2020-07
dc.date.submitted2019-09-17
dc.description.abstractThe use of animal-attached data loggers to quantify animal movement has increased in popularity and application in recent years. High-resolution tri-axial acceleration and magnetometry measurements have been fundamental in elucidating fine-scale animal movements, providing information on posture, traveling speed, energy expenditure, and associated behavioral patterns. Heading is a key variable obtained from the tandem use of magnetometers and accelerometers, although few field investigations have explored fine-scale changes in heading to elucidate differences in animal activity (beyond the notable exceptions of dead-reckoning). This paper provides an overview of the value and use of animal heading and a prime derivative, angular velocity about the yaw axis, as an important element for assessing activity extent with potential to allude to behaviors, using “free-ranging” Loggerhead turtles (Caretta caretta) as a model species. We also demonstrate the value of yaw rotation for assessing activity extent, which varies over the time scales considered and show that various scales of body rotation, particularly rate of change of yaw, can help resolve differences between fine-scale behavior-specific movements. For example, oscillating yaw movements about a central point of the body's arc implies bouts of foraging, while unusual circling behavior, indicative of conspecific interactions, could be identified from complete revolutions of the longitudinal axis. We believe this approach should help identification of behaviors and “space-state” approaches to enhance our interpretation of behavior-based movements, particularly in scenarios where acceleration metrics have limited value, such as for slow-moving animals.
dc.description.sponsorshipWe are grateful to Phil Hopkins and engineers from the Technical and Logistical center (TLZ) at GEOMAR for help with the tag housings and to Mark Holton for conceiving and regularly updating the DDMT software.
dc.description.sponsorshipExzellenzcluster Ozean der Zukunft. Grant Number: CP1217, King Abdullah University of Science and Technology (KAUST)
dc.eprint.versionPre-print
dc.identifier.citationGunner, R. M., Wilson, R. P., Holton, M. D., Scott, R., Hopkins, P., & Duarte, C. M. (2020). A new direction for differentiating animal activity based on measuring angular velocity about the yaw axis. Ecology and Evolution. doi:10.1002/ece3.6515
dc.identifier.doi10.1002/ece3.6515
dc.identifier.eid2-s2.0-85087552438
dc.identifier.issn2045-7758
dc.identifier.journalEcology and Evolution
dc.identifier.urihttp://hdl.handle.net/10754/664238
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.6515
dc.rightsArchived with thanks to Ecology and Evolution
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleA new direction for differentiating animal activity based on measuring angular velocity about the yaw axis
dc.typeArticle
display.details.left<span><h5>License</h5>http://creativecommons.org/licenses/by/4.0/<br><br><h5>Type</h5>Article<br><br><h5>Authors</h5><a href="https://repository.kaust.edu.sa/search?query=orcid.id:0000-0002-2054-9944&spc.sf=dc.date.issued&spc.sd=DESC">Gunner, Richard</a> <a href="https://orcid.org/0000-0002-2054-9944" target="_blank"><img src="https://repository.kaust.edu.sa/server/api/core/bitstreams/82a625b4-ed4b-40c8-865a-d6a5225a26a4/content" width="16" height="16"/></a><br><a href="https://repository.kaust.edu.sa/search?query=orcid.id:0000-0003-3177-0107&spc.sf=dc.date.issued&spc.sd=DESC">Wilson, Rory P.</a> <a href="https://orcid.org/0000-0003-3177-0107" target="_blank"><img src="https://repository.kaust.edu.sa/server/api/core/bitstreams/82a625b4-ed4b-40c8-865a-d6a5225a26a4/content" width="16" height="16"/></a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Holton, Mark D.,equals">Holton, Mark D.</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Scott, Rebecca,equals">Scott, Rebecca</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Hopkins, Phil,equals">Hopkins, Phil</a><br><a href="https://repository.kaust.edu.sa/search?query=orcid.id:0000-0002-1213-1361&spc.sf=dc.date.issued&spc.sd=DESC">Duarte, Carlos M.</a> <a href="https://orcid.org/0000-0002-1213-1361" target="_blank"><img src="https://repository.kaust.edu.sa/server/api/core/bitstreams/82a625b4-ed4b-40c8-865a-d6a5225a26a4/content" width="16" height="16"/></a><br><br><h5>KAUST Department</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.department=Biological and Environmental Sciences and Engineering (BESE) Division,equals">Biological and Environmental Sciences and Engineering (BESE) Division</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.department=Marine Science Program,equals">Marine Science Program</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.department=Red Sea Research Center (RSRC),equals">Red Sea Research Center (RSRC)</a><br><br><h5>Online Publication Date</h5>2020-07-06<br><br><h5>Print Publication Date</h5>2020-07<br><br><h5>Date</h5>2020-07-06<br><br><h5>Submitted Date</h5>2019-09-17</span>
display.details.right<span><h5>Abstract</h5>The use of animal-attached data loggers to quantify animal movement has increased in popularity and application in recent years. High-resolution tri-axial acceleration and magnetometry measurements have been fundamental in elucidating fine-scale animal movements, providing information on posture, traveling speed, energy expenditure, and associated behavioral patterns. Heading is a key variable obtained from the tandem use of magnetometers and accelerometers, although few field investigations have explored fine-scale changes in heading to elucidate differences in animal activity (beyond the notable exceptions of dead-reckoning). This paper provides an overview of the value and use of animal heading and a prime derivative, angular velocity about the yaw axis, as an important element for assessing activity extent with potential to allude to behaviors, using “free-ranging” Loggerhead turtles (Caretta caretta) as a model species. We also demonstrate the value of yaw rotation for assessing activity extent, which varies over the time scales considered and show that various scales of body rotation, particularly rate of change of yaw, can help resolve differences between fine-scale behavior-specific movements. For example, oscillating yaw movements about a central point of the body's arc implies bouts of foraging, while unusual circling behavior, indicative of conspecific interactions, could be identified from complete revolutions of the longitudinal axis. We believe this approach should help identification of behaviors and “space-state” approaches to enhance our interpretation of behavior-based movements, particularly in scenarios where acceleration metrics have limited value, such as for slow-moving animals.<br><br><h5>Citation</h5>Gunner, R. M., Wilson, R. P., Holton, M. D., Scott, R., Hopkins, P., & Duarte, C. M. (2020). A new direction for differentiating animal activity based on measuring angular velocity about the yaw axis. Ecology and Evolution. doi:10.1002/ece3.6515<br><br><h5>Acknowledgements</h5>We are grateful to Phil Hopkins and engineers from the Technical and Logistical center (TLZ) at GEOMAR for help with the tag housings and to Mark Holton for conceiving and regularly updating the DDMT software.<br>Exzellenzcluster Ozean der Zukunft. Grant Number: CP1217, King Abdullah University of Science and Technology (KAUST)<br><br><h5>Publisher</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.publisher=Wiley,equals">Wiley</a><br><br><h5>Journal</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.journal=Ecology and Evolution,equals">Ecology and Evolution</a><br><br><h5>DOI</h5><a href="https://doi.org/10.1002/ece3.6515">10.1002/ece3.6515</a><br><br><h5>Additional Links</h5>https://onlinelibrary.wiley.com/doi/abs/10.1002/ece3.6515</span>
kaust.personDuarte, Carlos M.
orcid.id0000-0002-1213-1361
orcid.id0000-0003-3177-0107
orcid.id0000-0002-2054-9944
refterms.dateFOA2020-07-16T08:55:42Z
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