Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia
At‐sea metabolism (CO2 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 composi...
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Wiley
1987
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Online Access: | http://nora.nerc.ac.uk/id/eprint/522609/ https://doi.org/10.1111/j.1474-919X.1987.tb03196.x |
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ftnerc:oai:nora.nerc.ac.uk:522609 2023-05-15T15:44:39+02:00 Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia Costa, D.P. Prince, P.A. 1987-01 http://nora.nerc.ac.uk/id/eprint/522609/ https://doi.org/10.1111/j.1474-919X.1987.tb03196.x unknown Wiley Costa, D.P.; Prince, P.A. 1987 Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia. Ibis, 129 (S1). 149-158. https://doi.org/10.1111/j.1474-919X.1987.tb03196.x <https://doi.org/10.1111/j.1474-919X.1987.tb03196.x> Biology and Microbiology Publication - Article PeerReviewed 1987 ftnerc https://doi.org/10.1111/j.1474-919X.1987.tb03196.x 2023-02-04T19:47:57Z At‐sea metabolism (CO2 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 CO2 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 Natural Environment Research Council: NERC Open Research Archive Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) Ibis 129 149 158 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Biology and Microbiology |
spellingShingle |
Biology and Microbiology Costa, D.P. Prince, P.A. Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia |
topic_facet |
Biology and Microbiology |
description |
At‐sea metabolism (CO2 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 CO2 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. |
author_facet |
Costa, D.P. Prince, P.A. |
author_sort |
Costa, D.P. |
title |
Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia |
title_short |
Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia |
title_full |
Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia |
title_fullStr |
Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia |
title_full_unstemmed |
Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia |
title_sort |
foraging energetics of grey-headed albatrosses diomedea chrysostoma at bird island, south georgia |
publisher |
Wiley |
publishDate |
1987 |
url |
http://nora.nerc.ac.uk/id/eprint/522609/ https://doi.org/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_relation |
Costa, D.P.; Prince, P.A. 1987 Foraging energetics of Grey-headed Albatrosses Diomedea chrysostoma at Bird Island, South Georgia. Ibis, 129 (S1). 149-158. https://doi.org/10.1111/j.1474-919X.1987.tb03196.x <https://doi.org/10.1111/j.1474-919X.1987.tb03196.x> |
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_ |
1766379035228635136 |