Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence
Age-related variation in demographic rates is now widely documented in wild vertebrate systems, and has significant consequences for population and evolutionary dynamics. However, the mechanisms underpinning such variation, particularly in later life, are less well understood. Foraging efficiency is...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/509418/ https://nora.nerc.ac.uk/id/eprint/509418/1/Froy.pdf https://doi.org/10.1371/journal.pone.0116415 |
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ftnerc:oai:nora.nerc.ac.uk:509418 2023-05-15T15:44:43+02:00 Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence Froy, Hannah Lewis, Sue Catry, Paulo Bishop, Charles M. Forster, Isaac P. Fukuda, Akira Higuchi, Hiroyoshi Phalan, Ben Xavier, Jose C. Nussey, Daniel H. Phillips, Richard A. 2015-01-09 text http://nora.nerc.ac.uk/id/eprint/509418/ https://nora.nerc.ac.uk/id/eprint/509418/1/Froy.pdf https://doi.org/10.1371/journal.pone.0116415 en eng Public Library of Science https://nora.nerc.ac.uk/id/eprint/509418/1/Froy.pdf Froy, Hannah; Lewis, Sue; Catry, Paulo; Bishop, Charles M.; Forster, Isaac P.; Fukuda, Akira; Higuchi, Hiroyoshi; Phalan, Ben; Xavier, Jose C. orcid:0000-0002-9621-6660 Nussey, Daniel H.; Phillips, Richard A. 2015 Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence. PLOS ONE, 10 (1), e0116415. https://doi.org/10.1371/journal.pone.0116415 <https://doi.org/10.1371/journal.pone.0116415> cc_by CC-BY Publication - Article PeerReviewed 2015 ftnerc https://doi.org/10.1371/journal.pone.0116415 2023-02-04T19:40:49Z Age-related variation in demographic rates is now widely documented in wild vertebrate systems, and has significant consequences for population and evolutionary dynamics. However, the mechanisms underpinning such variation, particularly in later life, are less well understood. Foraging efficiency is a key determinant of fitness, with implications for individual life history trade-offs. A variety of faculties known to decline in old age, such as muscular function and visual acuity, are likely to influence foraging performance. We examine age-related variation in the foraging behaviour of a long-lived, wide-ranging oceanic seabird, the wandering albatross Diomedea exulans. Using miniaturised tracking technologies, we compared foraging trip characteristics of birds breeding at Bird Island, South Georgia. Based on movement and immersion data collected during the incubation phase of a single breeding season, and from extensive tracking data collected in previous years from different stages of the breeding cycle, we found limited evidence for age-related variation in commonly reported trip parameters, and failed to detect signs of senescent decline. Our results contrast with the limited number of past studies that have examined foraging behaviour in later life, since these have documented changes in performance consistent with senescence. This highlights the importance of studies across different wild animal populations to gain a broader perspective on the processes driving variation in ageing rates. Article in Journal/Newspaper Bird Island Diomedea exulans Wandering Albatross Natural Environment Research Council: NERC Open Research Archive Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) PLOS ONE 10 1 e0116415 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Age-related variation in demographic rates is now widely documented in wild vertebrate systems, and has significant consequences for population and evolutionary dynamics. However, the mechanisms underpinning such variation, particularly in later life, are less well understood. Foraging efficiency is a key determinant of fitness, with implications for individual life history trade-offs. A variety of faculties known to decline in old age, such as muscular function and visual acuity, are likely to influence foraging performance. We examine age-related variation in the foraging behaviour of a long-lived, wide-ranging oceanic seabird, the wandering albatross Diomedea exulans. Using miniaturised tracking technologies, we compared foraging trip characteristics of birds breeding at Bird Island, South Georgia. Based on movement and immersion data collected during the incubation phase of a single breeding season, and from extensive tracking data collected in previous years from different stages of the breeding cycle, we found limited evidence for age-related variation in commonly reported trip parameters, and failed to detect signs of senescent decline. Our results contrast with the limited number of past studies that have examined foraging behaviour in later life, since these have documented changes in performance consistent with senescence. This highlights the importance of studies across different wild animal populations to gain a broader perspective on the processes driving variation in ageing rates. |
format |
Article in Journal/Newspaper |
author |
Froy, Hannah Lewis, Sue Catry, Paulo Bishop, Charles M. Forster, Isaac P. Fukuda, Akira Higuchi, Hiroyoshi Phalan, Ben Xavier, Jose C. Nussey, Daniel H. Phillips, Richard A. |
spellingShingle |
Froy, Hannah Lewis, Sue Catry, Paulo Bishop, Charles M. Forster, Isaac P. Fukuda, Akira Higuchi, Hiroyoshi Phalan, Ben Xavier, Jose C. Nussey, Daniel H. Phillips, Richard A. Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence |
author_facet |
Froy, Hannah Lewis, Sue Catry, Paulo Bishop, Charles M. Forster, Isaac P. Fukuda, Akira Higuchi, Hiroyoshi Phalan, Ben Xavier, Jose C. Nussey, Daniel H. Phillips, Richard A. |
author_sort |
Froy, Hannah |
title |
Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence |
title_short |
Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence |
title_full |
Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence |
title_fullStr |
Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence |
title_full_unstemmed |
Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence |
title_sort |
age-related variation in foraging behaviour in the wandering albatross at south georgia: no evidence for senescence |
publisher |
Public Library of Science |
publishDate |
2015 |
url |
http://nora.nerc.ac.uk/id/eprint/509418/ https://nora.nerc.ac.uk/id/eprint/509418/1/Froy.pdf https://doi.org/10.1371/journal.pone.0116415 |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Bird Island |
geographic_facet |
Bird Island |
genre |
Bird Island Diomedea exulans Wandering Albatross |
genre_facet |
Bird Island Diomedea exulans Wandering Albatross |
op_relation |
https://nora.nerc.ac.uk/id/eprint/509418/1/Froy.pdf Froy, Hannah; Lewis, Sue; Catry, Paulo; Bishop, Charles M.; Forster, Isaac P.; Fukuda, Akira; Higuchi, Hiroyoshi; Phalan, Ben; Xavier, Jose C. orcid:0000-0002-9621-6660 Nussey, Daniel H.; Phillips, Richard A. 2015 Age-Related Variation in Foraging Behaviour in the Wandering Albatross at South Georgia: No Evidence for Senescence. PLOS ONE, 10 (1), e0116415. https://doi.org/10.1371/journal.pone.0116415 <https://doi.org/10.1371/journal.pone.0116415> |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0116415 |
container_title |
PLOS ONE |
container_volume |
10 |
container_issue |
1 |
container_start_page |
e0116415 |
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1766379089312088064 |