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Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?

Richard Gunner, Rory Wilson Orcid Logo, Mark Holton Orcid Logo, Nigel C. Bennett, Abdulaziz N. Alagaili, Mads F. Bertelsen, Osama B. Mohammed, Tobias Wang, Paul R. Manger, Khairi Ismael, D. Michael Scantlebury

Movement Ecology, Volume: 11, Issue: 1

Swansea University Authors: Richard Gunner, Rory Wilson Orcid Logo, Mark Holton Orcid Logo

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DOI (Published version): 10.1186/s40462-023-00432-y

Abstract

Understanding the processes that determine how animals allocate time to space is a major challenge, although it is acknowledged that summed animal movement pathways over time must define space-time use. The critical question is then, what processes structure these pathways? Following the idea that t...

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Published in: Movement Ecology
ISSN: 2051-3933
Published: Springer Science and Business Media LLC 2023
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URI: https://cronfa.swan.ac.uk/Record/cronfa64774
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The critical question is then, what processes structure these pathways? Following the idea that turns within pathways might be based on environmentally determined decisions, we equipped Arabian oryx with head- and body-mounted tags to determine how they orientated their heads – which we posit is indicative of them assessing the environment – in relation to their movement paths, to investigate the role of environment scanning in path tortuosity. After simulating predators to verify that oryx look directly at objects of interest, we recorded that, during routine movement, &gt; 60% of all turns in the animals’ paths, before being executed, were preceded by a change in head heading that was not immediately mirrored by the body heading: The path turn angle (as indicated by the body heading) correlated with a prior change in head heading (with head heading being mirrored by subsequent turns in the path) twenty-one times more than when path turns occurred due to the animals adopting a body heading that went in the opposite direction to the change in head heading. Although we could not determine what the objects of interest were, and therefore the proposed reasons for turning, we suggest that this reflects the use of cephalic senses to detect advantageous environmental features (e.g. food) or to detect detrimental features (e.g. predators). 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spelling v2 64774 2023-10-18 Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues? 2683356ac0ac5d43946ac1f5b93e00e3 Richard Gunner Richard Gunner true false 017bc6dd155098860945dc6249c4e9bc 0000-0003-3177-0177 Rory Wilson Rory Wilson true false 0e1d89d0cc934a740dcd0a873aed178e 0000-0001-8834-3283 Mark Holton Mark Holton true false 2023-10-18 SBI Understanding the processes that determine how animals allocate time to space is a major challenge, although it is acknowledged that summed animal movement pathways over time must define space-time use. The critical question is then, what processes structure these pathways? Following the idea that turns within pathways might be based on environmentally determined decisions, we equipped Arabian oryx with head- and body-mounted tags to determine how they orientated their heads – which we posit is indicative of them assessing the environment – in relation to their movement paths, to investigate the role of environment scanning in path tortuosity. After simulating predators to verify that oryx look directly at objects of interest, we recorded that, during routine movement, > 60% of all turns in the animals’ paths, before being executed, were preceded by a change in head heading that was not immediately mirrored by the body heading: The path turn angle (as indicated by the body heading) correlated with a prior change in head heading (with head heading being mirrored by subsequent turns in the path) twenty-one times more than when path turns occurred due to the animals adopting a body heading that went in the opposite direction to the change in head heading. Although we could not determine what the objects of interest were, and therefore the proposed reasons for turning, we suggest that this reflects the use of cephalic senses to detect advantageous environmental features (e.g. food) or to detect detrimental features (e.g. predators). The results of our pilot study suggest how turns might emerge in animal pathways and we propose that examination of points of inflection in highly resolved animal paths could represent decisions in landscapes and their examination could enhance our understanding of how animal pathways are structured. Journal Article Movement Ecology 11 1 Springer Science and Business Media LLC 2051-3933 Animal behaviour, Movement, Decision-making 27 10 2023 2023-10-27 10.1186/s40462-023-00432-y http://dx.doi.org/10.1186/s40462-023-00432-y COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University Another institution paid the OA fee This study was funded by researchers supporting project number RSPD2023R602 from King Saud University, the Deanship of Scientific Research at the King Saud University through Vice Deanship of Research Chairs, the National Geographic Global Exploration Fund (A.A), and the Royal Society/Wolfson Lab refurbishment scheme (RPW). Open Access funding enabled and organized by Projekt DEAL. 2023-11-17T16:16:20.9532156 2023-10-18T20:07:37.3370030 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Richard Gunner 1 Rory Wilson 0000-0003-3177-0177 2 Mark Holton 0000-0001-8834-3283 3 Nigel C. Bennett 4 Abdulaziz N. Alagaili 5 Mads F. Bertelsen 6 Osama B. Mohammed 7 Tobias Wang 8 Paul R. Manger 9 Khairi Ismael 10 D. Michael Scantlebury 11 64774__28968__d71ddafc26ab44e0805821cf8078b9c8.pdf 64774.pdf 2023-11-08T10:52:56.1480797 Output 4109866 application/pdf Version of Record true © The Author(s) 2023. Distributed under the terms of a Creative Commons Attribution 4.0 International License (CC BY 4.0). true eng https://creativecommons.org/licenses/by/4.0/
title Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
spellingShingle Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
Richard Gunner
Rory Wilson
Mark Holton
title_short Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
title_full Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
title_fullStr Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
title_full_unstemmed Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
title_sort Examination of head versus body heading may help clarify the extent to which animal movement pathways are structured by environmental cues?
author_id_str_mv 2683356ac0ac5d43946ac1f5b93e00e3
017bc6dd155098860945dc6249c4e9bc
0e1d89d0cc934a740dcd0a873aed178e
author_id_fullname_str_mv 2683356ac0ac5d43946ac1f5b93e00e3_***_Richard Gunner
017bc6dd155098860945dc6249c4e9bc_***_Rory Wilson
0e1d89d0cc934a740dcd0a873aed178e_***_Mark Holton
author Richard Gunner
Rory Wilson
Mark Holton
author2 Richard Gunner
Rory Wilson
Mark Holton
Nigel C. Bennett
Abdulaziz N. Alagaili
Mads F. Bertelsen
Osama B. Mohammed
Tobias Wang
Paul R. Manger
Khairi Ismael
D. Michael Scantlebury
format Journal article
container_title Movement Ecology
container_volume 11
container_issue 1
publishDate 2023
institution Swansea University
issn 2051-3933
doi_str_mv 10.1186/s40462-023-00432-y
publisher Springer Science and Business Media LLC
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://dx.doi.org/10.1186/s40462-023-00432-y
document_store_str 1
active_str 0
description Understanding the processes that determine how animals allocate time to space is a major challenge, although it is acknowledged that summed animal movement pathways over time must define space-time use. The critical question is then, what processes structure these pathways? Following the idea that turns within pathways might be based on environmentally determined decisions, we equipped Arabian oryx with head- and body-mounted tags to determine how they orientated their heads – which we posit is indicative of them assessing the environment – in relation to their movement paths, to investigate the role of environment scanning in path tortuosity. After simulating predators to verify that oryx look directly at objects of interest, we recorded that, during routine movement, > 60% of all turns in the animals’ paths, before being executed, were preceded by a change in head heading that was not immediately mirrored by the body heading: The path turn angle (as indicated by the body heading) correlated with a prior change in head heading (with head heading being mirrored by subsequent turns in the path) twenty-one times more than when path turns occurred due to the animals adopting a body heading that went in the opposite direction to the change in head heading. Although we could not determine what the objects of interest were, and therefore the proposed reasons for turning, we suggest that this reflects the use of cephalic senses to detect advantageous environmental features (e.g. food) or to detect detrimental features (e.g. predators). The results of our pilot study suggest how turns might emerge in animal pathways and we propose that examination of points of inflection in highly resolved animal paths could represent decisions in landscapes and their examination could enhance our understanding of how animal pathways are structured.
published_date 2023-10-27T16:16:23Z
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