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Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights

Baptiste Garde, Rory Wilson Orcid Logo, Emmanouil Lempidakis, Luca Borger Orcid Logo, Steven J. Portugal, Anders Hedenström, Giacomo Dell'Omo, Michael Quetting, Martin Wikelski, Emily Shepard Orcid Logo

Royal Society Open Science, Volume: 8, Issue: 5, Start page: 210130

Swansea University Authors: Baptiste Garde, Rory Wilson Orcid Logo, Luca Borger Orcid Logo, Emily Shepard Orcid Logo

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DOI (Published version): 10.1098/rsos.210130

Abstract

The power curve provides a basis for predicting adjustments that animals make in flight speed, for example in relation to wind, distance, habitat foraging quality and objective. However, relatively few studies have examined how animals respond to the landscape below them, which could affect speed an...

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Published in: Royal Society Open Science
ISSN: 2054-5703
Published: The Royal Society 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa57206
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spelling v2 57206 2021-06-25 Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights 0d5e96ee58acfec4771c81cd2cb4cca8 Baptiste Garde Baptiste Garde true false 017bc6dd155098860945dc6249c4e9bc 0000-0003-3177-0177 Rory Wilson Rory Wilson true false 8416d0ffc3cccdad6e6d67a455e7c4a2 0000-0001-8763-5997 Luca Borger Luca Borger true false 54729295145aa1ea56d176818d51ed6a 0000-0001-7325-6398 Emily Shepard Emily Shepard true false 2021-06-25 BGPS The power curve provides a basis for predicting adjustments that animals make in flight speed, for example in relation to wind, distance, habitat foraging quality and objective. However, relatively few studies have examined how animals respond to the landscape below them, which could affect speed and power allocation through modifications in climb rate and perceived predation risk. We equipped homing pigeons (Columba livia) with high-frequency loggers to examine how flight speed, and hence effort, varies in relation to topography and land cover. Pigeons showed mixed evidence for an energy-saving strategy, as they minimized climb rates by starting their ascent ahead of hills, but selected rapid speeds in their ascents. Birds did not modify their speed substantially in relation to land cover, but used higher speeds during descending flight, highlighting the importance of considering the rate of change in altitude before estimating power use from speed. Finally, we document an unexpected variability in speed and altitude over fine scales; a source of substantial energetic inefficiency. We suggest this may be a form of protean behaviour adopted to reduce predation risk when flocking is not an option, and that such a strategy could be widespread. Journal Article Royal Society Open Science 8 5 210130 The Royal Society 2054-5703 flight speed, predation risk, protean behaviour, flocking, landscape, pigeon 19 5 2021 2021-05-19 10.1098/rsos.210130 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Other B.G. and E.L.C.S. are supported by the European Research Council under the European Union's Horizon 2020 research and innovation programme grant no. 715874 (to E.L.C.S.). Fieldwork was also supported by a Max Planck Sabbatical Fellowship to E.L.C.S. 2024-10-18T12:52:15.4668859 2021-06-25T10:41:51.5541163 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Baptiste Garde 1 Rory Wilson 0000-0003-3177-0177 2 Emmanouil Lempidakis 3 Luca Borger 0000-0001-8763-5997 4 Steven J. Portugal 5 Anders Hedenström 6 Giacomo Dell'Omo 7 Michael Quetting 8 Martin Wikelski 9 Emily Shepard 0000-0001-7325-6398 10 57206__20255__1c4024d612104b639c8dc0b0daf7939d.pdf 57206.pdf 2021-06-25T10:46:00.7998455 Output 1001265 application/pdf Version of Record true © 2021 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 Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
spellingShingle Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
Baptiste Garde
Rory Wilson
Luca Borger
Emily Shepard
title_short Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
title_full Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
title_fullStr Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
title_full_unstemmed Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
title_sort Fine-scale changes in speed and altitude suggest protean movements in homing pigeon flights
author_id_str_mv 0d5e96ee58acfec4771c81cd2cb4cca8
017bc6dd155098860945dc6249c4e9bc
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54729295145aa1ea56d176818d51ed6a
author_id_fullname_str_mv 0d5e96ee58acfec4771c81cd2cb4cca8_***_Baptiste Garde
017bc6dd155098860945dc6249c4e9bc_***_Rory Wilson
8416d0ffc3cccdad6e6d67a455e7c4a2_***_Luca Borger
54729295145aa1ea56d176818d51ed6a_***_Emily Shepard
author Baptiste Garde
Rory Wilson
Luca Borger
Emily Shepard
author2 Baptiste Garde
Rory Wilson
Emmanouil Lempidakis
Luca Borger
Steven J. Portugal
Anders Hedenström
Giacomo Dell'Omo
Michael Quetting
Martin Wikelski
Emily Shepard
format Journal article
container_title Royal Society Open Science
container_volume 8
container_issue 5
container_start_page 210130
publishDate 2021
institution Swansea University
issn 2054-5703
doi_str_mv 10.1098/rsos.210130
publisher The Royal Society
college_str Faculty of Science and Engineering
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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
document_store_str 1
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description The power curve provides a basis for predicting adjustments that animals make in flight speed, for example in relation to wind, distance, habitat foraging quality and objective. However, relatively few studies have examined how animals respond to the landscape below them, which could affect speed and power allocation through modifications in climb rate and perceived predation risk. We equipped homing pigeons (Columba livia) with high-frequency loggers to examine how flight speed, and hence effort, varies in relation to topography and land cover. Pigeons showed mixed evidence for an energy-saving strategy, as they minimized climb rates by starting their ascent ahead of hills, but selected rapid speeds in their ascents. Birds did not modify their speed substantially in relation to land cover, but used higher speeds during descending flight, highlighting the importance of considering the rate of change in altitude before estimating power use from speed. Finally, we document an unexpected variability in speed and altitude over fine scales; a source of substantial energetic inefficiency. We suggest this may be a form of protean behaviour adopted to reduce predation risk when flocking is not an option, and that such a strategy could be widespread.
published_date 2021-05-19T12:52:14Z
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score 11.037166