Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations
Individuals can specialise such that mutually exclusive home ranges arise and the acquisition of site familiarity early in life can favour individual site fidelity in mature animals. Non-territorial individual foraging site fidelity (IFSF) has been reported frequently, and among seabirds, foraging t...
Published in: | Marine Ecology Progress Series |
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Language: | English |
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Online Access: | https://eprints.gla.ac.uk/196682/ https://eprints.gla.ac.uk/196682/7/196682.pdf |
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ftuglasgow:oai:eprints.gla.ac.uk:196682 2023-05-15T15:53:47+02:00 Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations Owen, Ellie Wakefield, Ewan Hollinrake, Paul Leitch, Alan Steel, Laura Bolton, Mark 2019-06-18 text https://eprints.gla.ac.uk/196682/ https://eprints.gla.ac.uk/196682/7/196682.pdf en eng Inter Research https://eprints.gla.ac.uk/196682/7/196682.pdf Owen, E., Wakefield, E. <http://eprints.gla.ac.uk/view/author/31199.html> , Hollinrake, P., Leitch, A., Steel, L. and Bolton, M. (2019) Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations. Marine Ecology Progress Series <https://eprints.gla.ac.uk/view/journal_volume/Marine_Ecology_Progress_Series.html>, 620, pp. 173-183. (doi:10.3354/meps12979 <https://doi.org/10.3354/meps12979>) Articles PeerReviewed 2019 ftuglasgow https://doi.org/10.3354/meps12979 2022-09-22T22:15:24Z Individuals can specialise such that mutually exclusive home ranges arise and the acquisition of site familiarity early in life can favour individual site fidelity in mature animals. Non-territorial individual foraging site fidelity (IFSF) has been reported frequently, and among seabirds, foraging theory predicts that IFSF is more likely in short-ranging, benthic-foraging species, because their prey occur predictably at small scales. We tracked 17 adult and 2 immature black guillemots Cepphus grylle (mean mass 406 g, median of individual maximum foraging range 4.3 km). Individuals consistently returned to the same feeding areas, such that IFSF was significantly greater than the null expectation at spatial scales of 0.1 to 5 km and did not decay significantly over 10 d. Immature birds ranged more widely than adult birds. Our study demonstrates that space use varies between individuals and that processes or threats occurring within the foraging range of a given colony may act disproportionately on some individuals rather than be equally distributed across a population. This finding contributes to a growing body of research on IFSF, which may have important implications for species management. Article in Journal/Newspaper Cepphus grylle University of Glasgow: Enlighten - Publications Marine Ecology Progress Series 620 173 183 |
institution |
Open Polar |
collection |
University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
English |
description |
Individuals can specialise such that mutually exclusive home ranges arise and the acquisition of site familiarity early in life can favour individual site fidelity in mature animals. Non-territorial individual foraging site fidelity (IFSF) has been reported frequently, and among seabirds, foraging theory predicts that IFSF is more likely in short-ranging, benthic-foraging species, because their prey occur predictably at small scales. We tracked 17 adult and 2 immature black guillemots Cepphus grylle (mean mass 406 g, median of individual maximum foraging range 4.3 km). Individuals consistently returned to the same feeding areas, such that IFSF was significantly greater than the null expectation at spatial scales of 0.1 to 5 km and did not decay significantly over 10 d. Immature birds ranged more widely than adult birds. Our study demonstrates that space use varies between individuals and that processes or threats occurring within the foraging range of a given colony may act disproportionately on some individuals rather than be equally distributed across a population. This finding contributes to a growing body of research on IFSF, which may have important implications for species management. |
format |
Article in Journal/Newspaper |
author |
Owen, Ellie Wakefield, Ewan Hollinrake, Paul Leitch, Alan Steel, Laura Bolton, Mark |
spellingShingle |
Owen, Ellie Wakefield, Ewan Hollinrake, Paul Leitch, Alan Steel, Laura Bolton, Mark Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
author_facet |
Owen, Ellie Wakefield, Ewan Hollinrake, Paul Leitch, Alan Steel, Laura Bolton, Mark |
author_sort |
Owen, Ellie |
title |
Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
title_short |
Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
title_full |
Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
title_fullStr |
Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
title_full_unstemmed |
Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
title_sort |
breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations |
publisher |
Inter Research |
publishDate |
2019 |
url |
https://eprints.gla.ac.uk/196682/ https://eprints.gla.ac.uk/196682/7/196682.pdf |
genre |
Cepphus grylle |
genre_facet |
Cepphus grylle |
op_relation |
https://eprints.gla.ac.uk/196682/7/196682.pdf Owen, E., Wakefield, E. <http://eprints.gla.ac.uk/view/author/31199.html> , Hollinrake, P., Leitch, A., Steel, L. and Bolton, M. (2019) Breeding together, feeding apart: sympatrically breeding seabirds forage in individually distinct locations. Marine Ecology Progress Series <https://eprints.gla.ac.uk/view/journal_volume/Marine_Ecology_Progress_Series.html>, 620, pp. 173-183. (doi:10.3354/meps12979 <https://doi.org/10.3354/meps12979>) |
op_doi |
https://doi.org/10.3354/meps12979 |
container_title |
Marine Ecology Progress Series |
container_volume |
620 |
container_start_page |
173 |
op_container_end_page |
183 |
_version_ |
1766388967704363008 |