Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia
At‐sea metabolism (CO 2 production) and water turnover of six breeding Grey‐headed Albatrosses Diomedea chrysostoma were measured, using the doubly labelled water method, at Bird Island, South Georgia, Mean food consumption (estimated from a water influx rate of 1.01 1 d ‐1 and data on dietary compo...
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Format: | Article in Journal/Newspaper |
Language: | English |
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1987
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Online Access: | http://dx.doi.org/10.1111/j.1474-919x.1987.tb03196.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1987.tb03196.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1987.tb03196.x |
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crwiley:10.1111/j.1474-919x.1987.tb03196.x 2024-06-23T07:51:48+00:00 Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia COSTA, D. P. PRINCE, P. A. 1987 http://dx.doi.org/10.1111/j.1474-919x.1987.tb03196.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1987.tb03196.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1987.tb03196.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 129, issue S1, page 149-158 ISSN 0019-1019 1474-919X journal-article 1987 crwiley https://doi.org/10.1111/j.1474-919x.1987.tb03196.x 2024-06-13T04:23:11Z At‐sea metabolism (CO 2 production) and water turnover of six breeding Grey‐headed Albatrosses Diomedea chrysostoma were measured, using the doubly labelled water method, at Bird Island, South Georgia, Mean food consumption (estimated from a water influx rate of 1.01 1 d ‐1 and data on dietary composition) was 1200gd ‐1 or 50.4 W. At‐sea metabolism (derived from a rate of CO 2 production of 3.98 1 h ‐1 ) was 27.7 W, 2.5 times the estimated basal metabolic rate (BMR). On average the birds ingested nearly twice as much food energy as they expended to obtain it. The metabolic rate during flight (estimated from at‐sea metabolism and activity budget data) was 36.3 W (range 34.7–39.0 W) or 3.2 (range 3.0–3.4) times the predicted BMR. This is the lowest cost of flight yet measured, but consistent with the highly developed adaptations for economic flight shown by albatrosses. These results are briefly compared with data for other polar vertebrates (penguins, fur seals) exploiting similar prey. Article in Journal/Newspaper Bird Island Wiley Online Library Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Ibis 129 149 158 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
At‐sea metabolism (CO 2 production) and water turnover of six breeding Grey‐headed Albatrosses Diomedea chrysostoma were measured, using the doubly labelled water method, at Bird Island, South Georgia, Mean food consumption (estimated from a water influx rate of 1.01 1 d ‐1 and data on dietary composition) was 1200gd ‐1 or 50.4 W. At‐sea metabolism (derived from a rate of CO 2 production of 3.98 1 h ‐1 ) was 27.7 W, 2.5 times the estimated basal metabolic rate (BMR). On average the birds ingested nearly twice as much food energy as they expended to obtain it. The metabolic rate during flight (estimated from at‐sea metabolism and activity budget data) was 36.3 W (range 34.7–39.0 W) or 3.2 (range 3.0–3.4) times the predicted BMR. This is the lowest cost of flight yet measured, but consistent with the highly developed adaptations for economic flight shown by albatrosses. These results are briefly compared with data for other polar vertebrates (penguins, fur seals) exploiting similar prey. |
format |
Article in Journal/Newspaper |
author |
COSTA, D. P. PRINCE, P. A. |
spellingShingle |
COSTA, D. P. PRINCE, P. A. Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia |
author_facet |
COSTA, D. P. PRINCE, P. A. |
author_sort |
COSTA, D. P. |
title |
Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia |
title_short |
Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia |
title_full |
Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia |
title_fullStr |
Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia |
title_full_unstemmed |
Foraging energetics of Grey‐headed Albatrosses Diotnedea chrysostoma at Bird Island, South Georgia |
title_sort |
foraging energetics of grey‐headed albatrosses diotnedea chrysostoma at bird island, south georgia |
publisher |
Wiley |
publishDate |
1987 |
url |
http://dx.doi.org/10.1111/j.1474-919x.1987.tb03196.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1987.tb03196.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1987.tb03196.x |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Bird Island |
geographic_facet |
Bird Island |
genre |
Bird Island |
genre_facet |
Bird Island |
op_source |
Ibis volume 129, issue S1, page 149-158 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1474-919x.1987.tb03196.x |
container_title |
Ibis |
container_volume |
129 |
container_start_page |
149 |
op_container_end_page |
158 |
_version_ |
1802642930301665280 |