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Fidelity to foraging sites after long migrations

Takahiro Shimada, Colin J. Limpus, Mark Hamann, Ian Bell, Nicole Esteban Orcid Logo, Rachel Groom, Graeme C. Hays

Journal of Animal Ecology, Volume: 89, Issue: 4, Pages: 1008 - 1016

Swansea University Author: Nicole Esteban Orcid Logo

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DOI (Published version): 10.1111/1365-2656.13157

Abstract

1. Patterns of animal movement associated with foraging lie at the heart of many ecological studies and often animals face decisions of staying in an environment they know versus relocating to new sites.2. The lack of knowledge of new foraging sites means there is risk associated with a decision to...

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Published in: Journal of Animal Ecology
ISSN: 0021-8790 1365-2656
Published: Wiley 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa53268
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last_indexed 2020-08-07T03:21:48Z
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spelling 2020-08-06T15:11:14.0999306 v2 53268 2020-01-15 Fidelity to foraging sites after long migrations fb2e760b83b4580e7445092982f1f319 0000-0003-4693-7221 Nicole Esteban Nicole Esteban true false 2020-01-15 SBI 1. Patterns of animal movement associated with foraging lie at the heart of many ecological studies and often animals face decisions of staying in an environment they know versus relocating to new sites.2. The lack of knowledge of new foraging sites means there is risk associated with a decision to relocate (e.g. poor foraging) as well as a potential benefit (e.g. improved foraging).3. Using a unique long-term satellite tracking dataset for several sea turtle species, combined with capture–mark–recapture data extending over 50 years, we show how, across species, individuals generally maintain tight fidelity to specific foraging sites after extended (up to almost 10,000 km) migration to and from distant breeding sites as well as across many decades.4. Migrating individuals often travelled through suitable foraging areas en route to their ‘home’ site and so extended their journeys to maintain foraging site fidelity.5. We explore the likely mechanistic underpinnings of this trait, which is also seen in some migrating birds, and suggest that individuals will forgo areas of suitable forage encountered en route during migration when they have poor knowledge of the long-term suitability of those sites, making relocation to those sites risky. Journal Article Journal of Animal Ecology 89 4 1008 1016 Wiley 0021-8790 1365-2656 Argos, biologging, Caretta caretta, Chelonia mydas, Eretmochelys imbricata, Fastloc-GPS, Natator depressus, risk taking 1 4 2020 2020-04-01 10.1111/1365-2656.13157 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2020-08-06T15:11:14.0999306 2020-01-15T11:51:07.2766798 Takahiro Shimada 1 Colin J. Limpus 2 Mark Hamann 3 Ian Bell 4 Nicole Esteban 0000-0003-4693-7221 5 Rachel Groom 6 Graeme C. Hays 7 53268__16377__40d4f8ed0ee44ec7a14b374b22bd4375.pdf 53268.pdf 2020-01-21T14:55:04.7568450 Output 4391101 application/pdf Accepted Manuscript true 2020-11-30T00:00:00.0000000 true eng
title Fidelity to foraging sites after long migrations
spellingShingle Fidelity to foraging sites after long migrations
Nicole Esteban
title_short Fidelity to foraging sites after long migrations
title_full Fidelity to foraging sites after long migrations
title_fullStr Fidelity to foraging sites after long migrations
title_full_unstemmed Fidelity to foraging sites after long migrations
title_sort Fidelity to foraging sites after long migrations
author_id_str_mv fb2e760b83b4580e7445092982f1f319
author_id_fullname_str_mv fb2e760b83b4580e7445092982f1f319_***_Nicole Esteban
author Nicole Esteban
author2 Takahiro Shimada
Colin J. Limpus
Mark Hamann
Ian Bell
Nicole Esteban
Rachel Groom
Graeme C. Hays
format Journal article
container_title Journal of Animal Ecology
container_volume 89
container_issue 4
container_start_page 1008
publishDate 2020
institution Swansea University
issn 0021-8790
1365-2656
doi_str_mv 10.1111/1365-2656.13157
publisher Wiley
document_store_str 1
active_str 0
description 1. Patterns of animal movement associated with foraging lie at the heart of many ecological studies and often animals face decisions of staying in an environment they know versus relocating to new sites.2. The lack of knowledge of new foraging sites means there is risk associated with a decision to relocate (e.g. poor foraging) as well as a potential benefit (e.g. improved foraging).3. Using a unique long-term satellite tracking dataset for several sea turtle species, combined with capture–mark–recapture data extending over 50 years, we show how, across species, individuals generally maintain tight fidelity to specific foraging sites after extended (up to almost 10,000 km) migration to and from distant breeding sites as well as across many decades.4. Migrating individuals often travelled through suitable foraging areas en route to their ‘home’ site and so extended their journeys to maintain foraging site fidelity.5. We explore the likely mechanistic underpinnings of this trait, which is also seen in some migrating birds, and suggest that individuals will forgo areas of suitable forage encountered en route during migration when they have poor knowledge of the long-term suitability of those sites, making relocation to those sites risky.
published_date 2020-04-01T04:06:08Z
_version_ 1763753452944490496
score 11.016235

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