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A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers
Royal Society Open Science, Volume: 10, Issue: 12
Swansea University Author: Rory Wilson
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© 2023 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License.
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DOI (Published version): 10.1098/rsos.231363
Abstract
With advances in bio-logging technology, the posture of animals is now commonly described by inertial measurement units, which include tri-axial accelerometers to estimate pitch and roll angles. Many large seabirds use dynamic soaring flight to travel long distances, but this low-cost flight mode re...
Published in: | Royal Society Open Science |
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ISSN: | 2054-5703 |
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2023
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URI: | https://cronfa.swan.ac.uk/Record/cronfa65229 |
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v2 65229 2023-12-06 A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers 017bc6dd155098860945dc6249c4e9bc 0000-0003-3177-0177 Rory Wilson Rory Wilson true false 2023-12-06 SBI With advances in bio-logging technology, the posture of animals is now commonly described by inertial measurement units, which include tri-axial accelerometers to estimate pitch and roll angles. Many large seabirds use dynamic soaring flight to travel long distances, but this low-cost flight mode results in high centripetal acceleration, which obscures posture derived from accelerometers. Tri-axial magnetometers are not influenced by acceleration and might provide a way to estimate the posture of animals that experience high centripetal acceleration. We propose a new method to estimate the posture of dynamic soaring seabirds using tri-axial magnetometer data, with the assumption that they do not have large pitch angles during routine flight. This method was field-tested by deploying a combination of bio-logging devices on three albatross species breeding on Marion Island, using bird-borne video loggers to validate the roll angles. Validated data showed that the method worked well in most instances, but accuracy decreased when the heading was close to magnetic north or south. Accurate, fine-scale posture estimates may provide insight into dynamic soaring flight and allow estimates of fine-scale tracks using dead-reckoning, not only for seabirds, but potentially for other species where centripetal acceleration limits the use of accelerometers to estimate posture. Journal Article Royal Society Open Science 10 12 The Royal Society 2054-5703 accelerometer, video camera, body angles, directional cosine matrix, dynamic soaring, seabird behaviour 6 12 2023 2023-12-06 10.1098/rsos.231363 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University Another institution paid the OA fee Funding was provided by the FitzPatrick Institute Centre of Excellence and the South African National Antarctic Programme, through the National Research Foundation. S.S. was supported by the AGNES Junior Researcher Grant 2021 in collaboration with the Alexander von Humboldt Foundation and the German Ministry of Education and Research. 2024-04-10T09:55:21.5246130 2023-12-06T20:21:59.2953356 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Stefan Schoombie 0000-0002-6566-0443 1 Rory Wilson 0000-0003-3177-0177 2 P. G. Ryan 3 65229__29967__e40076cf0d5d43b28cc997ce5fef2b68.pdf 65229.VOR.pdf 2024-04-10T09:53:54.6571766 Output 2358363 application/pdf Version of Record true © 2023 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License. true eng http://creativecommons.org/licenses/by/4.0/ |
title |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers |
spellingShingle |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers Rory Wilson |
title_short |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers |
title_full |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers |
title_fullStr |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers |
title_full_unstemmed |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers |
title_sort |
A novel approach to seabird posture estimation: finding roll and yaw angles of dynamic soaring albatrosses using tri-axial magnetometers |
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017bc6dd155098860945dc6249c4e9bc |
author_id_fullname_str_mv |
017bc6dd155098860945dc6249c4e9bc_***_Rory Wilson |
author |
Rory Wilson |
author2 |
Stefan Schoombie Rory Wilson P. G. Ryan |
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Journal article |
container_title |
Royal Society Open Science |
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10 |
container_issue |
12 |
publishDate |
2023 |
institution |
Swansea University |
issn |
2054-5703 |
doi_str_mv |
10.1098/rsos.231363 |
publisher |
The Royal Society |
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Faculty of Science and Engineering |
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description |
With advances in bio-logging technology, the posture of animals is now commonly described by inertial measurement units, which include tri-axial accelerometers to estimate pitch and roll angles. Many large seabirds use dynamic soaring flight to travel long distances, but this low-cost flight mode results in high centripetal acceleration, which obscures posture derived from accelerometers. Tri-axial magnetometers are not influenced by acceleration and might provide a way to estimate the posture of animals that experience high centripetal acceleration. We propose a new method to estimate the posture of dynamic soaring seabirds using tri-axial magnetometer data, with the assumption that they do not have large pitch angles during routine flight. This method was field-tested by deploying a combination of bio-logging devices on three albatross species breeding on Marion Island, using bird-borne video loggers to validate the roll angles. Validated data showed that the method worked well in most instances, but accuracy decreased when the heading was close to magnetic north or south. Accurate, fine-scale posture estimates may provide insight into dynamic soaring flight and allow estimates of fine-scale tracks using dead-reckoning, not only for seabirds, but potentially for other species where centripetal acceleration limits the use of accelerometers to estimate posture. |
published_date |
2023-12-06T09:55:18Z |
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1795937344055934976 |
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11.035634 |