Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean
The distribution of many cephalopod, crustacean and fish species in the Southern Ocean, and adjacent waters, is poorly known, particularly during times of the year when research surveys are rare. Analysing the stomach samples of satellite‐tracked higher predators has been advocated as a potential me...
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crwiley:10.1111/j.2006.0906-7590.04525.x 2023-12-03T10:14:00+01:00 Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean C. Xavier, J. A. Tarling, G. P. Croxall, J. 2006 http://dx.doi.org/10.1111/j.2006.0906-7590.04525.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.2006.0906-7590.04525.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.2006.0906-7590.04525.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecography volume 29, issue 2, page 260-272 ISSN 0906-7590 1600-0587 Ecology, Evolution, Behavior and Systematics journal-article 2006 crwiley https://doi.org/10.1111/j.2006.0906-7590.04525.x 2023-11-09T14:22:09Z The distribution of many cephalopod, crustacean and fish species in the Southern Ocean, and adjacent waters, is poorly known, particularly during times of the year when research surveys are rare. Analysing the stomach samples of satellite‐tracked higher predators has been advocated as a potential method by which such gaps in knowledge can be filled. We examined the viability of this approach through monitoring wandering albatrosses Diomedea exulans at their colony on Bird Island, South Georgia (54°S, 38°W) over the winters (May–July) of 1999 and 2000. At this time, these birds foraged in up to three different water‐masses, the Antarctic zone (AZ), the sub‐Antarctic zone (SAZ) and the sub‐Tropical zone (STZ), which we defined by contemporaneous satellite images of sea surface temperature. A probabilistic model was applied to the tracking and diet data collected from 38 birds to construct a large‐scale map of where various prey were captured. Robustness/sensitivity analyses were used to test model assumptions on the time spent foraging and relative catch efficiencies and to evaluate potential biases associated with the model. We were able to predict the distributions of a wide number of cephalopod, crustacean of fish species. We also discovered some of the limitations to using this type of data and proposed ways to rectify these problems. Article in Journal/Newspaper Antarc* Antarctic Bird Island Diomedea exulans Southern Ocean Wiley Online Library (via Crossref) Antarctic Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Southern Ocean The Antarctic Ecography 29 2 260 272 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology, Evolution, Behavior and Systematics C. Xavier, J. A. Tarling, G. P. Croxall, J. Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean |
topic_facet |
Ecology, Evolution, Behavior and Systematics |
description |
The distribution of many cephalopod, crustacean and fish species in the Southern Ocean, and adjacent waters, is poorly known, particularly during times of the year when research surveys are rare. Analysing the stomach samples of satellite‐tracked higher predators has been advocated as a potential method by which such gaps in knowledge can be filled. We examined the viability of this approach through monitoring wandering albatrosses Diomedea exulans at their colony on Bird Island, South Georgia (54°S, 38°W) over the winters (May–July) of 1999 and 2000. At this time, these birds foraged in up to three different water‐masses, the Antarctic zone (AZ), the sub‐Antarctic zone (SAZ) and the sub‐Tropical zone (STZ), which we defined by contemporaneous satellite images of sea surface temperature. A probabilistic model was applied to the tracking and diet data collected from 38 birds to construct a large‐scale map of where various prey were captured. Robustness/sensitivity analyses were used to test model assumptions on the time spent foraging and relative catch efficiencies and to evaluate potential biases associated with the model. We were able to predict the distributions of a wide number of cephalopod, crustacean of fish species. We also discovered some of the limitations to using this type of data and proposed ways to rectify these problems. |
format |
Article in Journal/Newspaper |
author |
C. Xavier, J. A. Tarling, G. P. Croxall, J. |
author_facet |
C. Xavier, J. A. Tarling, G. P. Croxall, J. |
author_sort |
C. Xavier, J. |
title |
Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean |
title_short |
Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean |
title_full |
Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean |
title_fullStr |
Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean |
title_full_unstemmed |
Determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the Southern Ocean |
title_sort |
determining prey distribution patterns from stomach‐contents of satellite‐tracked high‐predators of the southern ocean |
publisher |
Wiley |
publishDate |
2006 |
url |
http://dx.doi.org/10.1111/j.2006.0906-7590.04525.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.2006.0906-7590.04525.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.2006.0906-7590.04525.x |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Antarctic Bird Island Southern Ocean The Antarctic |
geographic_facet |
Antarctic Bird Island Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Bird Island Diomedea exulans Southern Ocean |
genre_facet |
Antarc* Antarctic Bird Island Diomedea exulans Southern Ocean |
op_source |
Ecography volume 29, issue 2, page 260-272 ISSN 0906-7590 1600-0587 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.2006.0906-7590.04525.x |
container_title |
Ecography |
container_volume |
29 |
container_issue |
2 |
container_start_page |
260 |
op_container_end_page |
272 |
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1784261027240607744 |