Divergent foraging habitat preferences between summer-breeding and winter-breeding Procellaria petrels
Foraging niche specialisation 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 P. aequinoctialis, tracked in the same calendar y...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/530669/ https://nora.nerc.ac.uk/id/eprint/530669/1/Ibis%20-%202022%20-%20Bentley%20-%20Divergent%20foraging%20habitat%20preferences%20between%20summer%E2%80%90breeding%20and%20winter%E2%80%90breeding%20Procellaria.pdf https://onlinelibrary.wiley.com/doi/10.1111/ibi.13152 |
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ftnerc:oai:nora.nerc.ac.uk:530669 2023-05-15T15:44:42+02:00 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. 2022-10-17 text http://nora.nerc.ac.uk/id/eprint/530669/ https://nora.nerc.ac.uk/id/eprint/530669/1/Ibis%20-%202022%20-%20Bentley%20-%20Divergent%20foraging%20habitat%20preferences%20between%20summer%E2%80%90breeding%20and%20winter%E2%80%90breeding%20Procellaria.pdf https://onlinelibrary.wiley.com/doi/10.1111/ibi.13152 en eng Wiley https://nora.nerc.ac.uk/id/eprint/530669/1/Ibis%20-%202022%20-%20Bentley%20-%20Divergent%20foraging%20habitat%20preferences%20between%20summer%E2%80%90breeding%20and%20winter%E2%80%90breeding%20Procellaria.pdf Bentley, Lily K. orcid:0000-0002-0365-6385 Manica, Andrea; Dilley, Ben J.; Ryan, Peter G.; Phillips, Richard A. 2022 Divergent foraging habitat preferences between summer-breeding and winter-breeding Procellaria petrels. Ibis. 11, pp. https://doi.org/10.1111/ibi.13152 <https://doi.org/10.1111/ibi.13152> Publication - Article PeerReviewed 2022 ftnerc https://doi.org/10.1111/ibi.13152 2023-02-04T19:52:20Z Foraging niche specialisation 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 P. 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 Natural Environment Research Council: NERC Open Research Archive Austral Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Gough ENVELOPE(159.367,159.367,-81.633,-81.633) Ibis |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Foraging niche specialisation 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 P. 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. |
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://nora.nerc.ac.uk/id/eprint/530669/ https://nora.nerc.ac.uk/id/eprint/530669/1/Ibis%20-%202022%20-%20Bentley%20-%20Divergent%20foraging%20habitat%20preferences%20between%20summer%E2%80%90breeding%20and%20winter%E2%80%90breeding%20Procellaria.pdf https://onlinelibrary.wiley.com/doi/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_relation |
https://nora.nerc.ac.uk/id/eprint/530669/1/Ibis%20-%202022%20-%20Bentley%20-%20Divergent%20foraging%20habitat%20preferences%20between%20summer%E2%80%90breeding%20and%20winter%E2%80%90breeding%20Procellaria.pdf Bentley, Lily K. orcid:0000-0002-0365-6385 Manica, Andrea; Dilley, Ben J.; Ryan, Peter G.; Phillips, Richard A. 2022 Divergent foraging habitat preferences between summer-breeding and winter-breeding Procellaria petrels. Ibis. 11, pp. https://doi.org/10.1111/ibi.13152 <https://doi.org/10.1111/ibi.13152> |
op_doi |
https://doi.org/10.1111/ibi.13152 |
container_title |
Ibis |
_version_ |
1766379074282848256 |