Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels
Foraging niche specialization is thought to occur when different members of speciose communities divide resources in either time or space. Here we compared habitat preferences of the congeneric Grey Petrel Procellaria cinerea and White‐chinned Petrel Procellaria aequinoctialis , tracked in the same...
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Online Access: | http://dx.doi.org/10.1111/ibi.13152 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13152 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13152 |
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crwiley:10.1111/ibi.13152 2024-06-23T07:51:48+00:00 Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels Bentley, Lily K. Manica, Andrea Dilley, Ben J. Ryan, Peter G. Phillips, Richard A. British Antarctic Survey Foreign and Commonwealth Office Gates Cambridge Trust 2022 http://dx.doi.org/10.1111/ibi.13152 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13152 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13152 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ibis volume 165, issue 2, page 618-628 ISSN 0019-1019 1474-919X journal-article 2022 crwiley https://doi.org/10.1111/ibi.13152 2024-06-04T06:38:18Z Foraging niche specialization is thought to occur when different members of speciose communities divide resources in either time or space. Here we compared habitat preferences of the congeneric Grey Petrel Procellaria cinerea and White‐chinned Petrel Procellaria aequinoctialis , tracked in the same calendar year using GPS loggers from Gough Island and Bird Island (South Georgia), respectively. We identified periods of active foraging and determined habitat characteristics using remote‐sensing data. Although these highly pelagic species could potentially overlap at sea across large areas, they showed markedly different foraging preferences during their incubation periods, which are temporally offset because Grey Petrels breed during the austral winter. Grey Petrels foraged mostly in pelagic cold‐water areas to the north‐west of South Georgia, whereas White‐chinned Petrels foraged almost exclusively in the warm, shallow waters of the Patagonian Shelf. Within each species, foraging habitat characteristics were highly consistent. Our results demonstrate the diversity of habitat preferences within genera, and provide further evidence that colony‐specific information on habitat preference is crucial to identify important feeding areas for pelagic predators. Article in Journal/Newspaper Bird Island Wiley Online Library Austral Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Gough ENVELOPE(159.367,159.367,-81.633,-81.633) Ibis 165 2 618 628 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Foraging niche specialization is thought to occur when different members of speciose communities divide resources in either time or space. Here we compared habitat preferences of the congeneric Grey Petrel Procellaria cinerea and White‐chinned Petrel Procellaria aequinoctialis , tracked in the same calendar year using GPS loggers from Gough Island and Bird Island (South Georgia), respectively. We identified periods of active foraging and determined habitat characteristics using remote‐sensing data. Although these highly pelagic species could potentially overlap at sea across large areas, they showed markedly different foraging preferences during their incubation periods, which are temporally offset because Grey Petrels breed during the austral winter. Grey Petrels foraged mostly in pelagic cold‐water areas to the north‐west of South Georgia, whereas White‐chinned Petrels foraged almost exclusively in the warm, shallow waters of the Patagonian Shelf. Within each species, foraging habitat characteristics were highly consistent. Our results demonstrate the diversity of habitat preferences within genera, and provide further evidence that colony‐specific information on habitat preference is crucial to identify important feeding areas for pelagic predators. |
author2 |
British Antarctic Survey Foreign and Commonwealth Office Gates Cambridge Trust |
format |
Article in Journal/Newspaper |
author |
Bentley, Lily K. Manica, Andrea Dilley, Ben J. Ryan, Peter G. Phillips, Richard A. |
spellingShingle |
Bentley, Lily K. Manica, Andrea Dilley, Ben J. Ryan, Peter G. Phillips, Richard A. Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels |
author_facet |
Bentley, Lily K. Manica, Andrea Dilley, Ben J. Ryan, Peter G. Phillips, Richard A. |
author_sort |
Bentley, Lily K. |
title |
Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels |
title_short |
Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels |
title_full |
Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels |
title_fullStr |
Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels |
title_full_unstemmed |
Divergent foraging habitat preferences between summer‐breeding and winter‐breeding Procellaria petrels |
title_sort |
divergent foraging habitat preferences between summer‐breeding and winter‐breeding procellaria petrels |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/ibi.13152 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13152 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13152 |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) ENVELOPE(159.367,159.367,-81.633,-81.633) |
geographic |
Austral Bird Island Gough |
geographic_facet |
Austral Bird Island Gough |
genre |
Bird Island |
genre_facet |
Bird Island |
op_source |
Ibis volume 165, issue 2, page 618-628 ISSN 0019-1019 1474-919X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/ibi.13152 |
container_title |
Ibis |
container_volume |
165 |
container_issue |
2 |
container_start_page |
618 |
op_container_end_page |
628 |
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1802642932498432000 |