The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks
The food and energy requirements of adult emperor penguins parenting chicks were examined at Auster (about 11 000 pairs) and Taylor Glacier (about 2900 pairs) colonies during the winter, spring and summer of 1988. Tritiated water-derived estimates of food consumption trebled during the five-month pe...
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Language: | English |
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Cambridge University Press (CUP)
1996
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Online Access: | http://dx.doi.org/10.1017/s0954102096000077 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000077 |
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crcambridgeupr:10.1017/s0954102096000077 2024-03-03T08:39:29+00:00 The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks Robertson, Graham Newgrain, Keith 1996 http://dx.doi.org/10.1017/s0954102096000077 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000077 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 8, issue 1, page 37-44 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1996 crcambridgeupr https://doi.org/10.1017/s0954102096000077 2024-02-08T08:46:24Z The food and energy requirements of adult emperor penguins parenting chicks were examined at Auster (about 11 000 pairs) and Taylor Glacier (about 2900 pairs) colonies during the winter, spring and summer of 1988. Tritiated water-derived estimates of food consumption trebled during the five-month period of chick care, ranging from 2.3 kg d −1 in winter when chicks were <5% of adult mass, to 6.3 kg d −1 in summer, when chicks represented 40–50% of adult mass. These food consumption rates were equivalent to the acquisition of 11.4 MJ d −1 and 33.4 MJ d −1 metabolizable energy in winter and summer respectively. Chick provisioning was not accompanied by a major increase in food consumption by adults. Adults assimilated 84–92% of their daily food intake themselves and retained the remainder for the chick. The food ration of chick for the three seasons (42 kg) constituted only about 9.5% of adult maintenance requirements during the same period. Adults consumed an estimated 482 kg of food (including the ration for the chick), which amounted to about 10 700 t and 2800 t of fish and squid consumed by the breeding populations at Auster and Taylor Glacier, respectively. Article in Journal/Newspaper Antarctic Science Aptenodytes forsteri Emperor penguins Taylor Glacier Cambridge University Press Taylor Glacier ENVELOPE(162.167,162.167,-77.733,-77.733) Auster ENVELOPE(-59.467,-59.467,-63.817,-63.817) Antarctic Science 8 1 37 44 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Robertson, Graham Newgrain, Keith The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
The food and energy requirements of adult emperor penguins parenting chicks were examined at Auster (about 11 000 pairs) and Taylor Glacier (about 2900 pairs) colonies during the winter, spring and summer of 1988. Tritiated water-derived estimates of food consumption trebled during the five-month period of chick care, ranging from 2.3 kg d −1 in winter when chicks were <5% of adult mass, to 6.3 kg d −1 in summer, when chicks represented 40–50% of adult mass. These food consumption rates were equivalent to the acquisition of 11.4 MJ d −1 and 33.4 MJ d −1 metabolizable energy in winter and summer respectively. Chick provisioning was not accompanied by a major increase in food consumption by adults. Adults assimilated 84–92% of their daily food intake themselves and retained the remainder for the chick. The food ration of chick for the three seasons (42 kg) constituted only about 9.5% of adult maintenance requirements during the same period. Adults consumed an estimated 482 kg of food (including the ration for the chick), which amounted to about 10 700 t and 2800 t of fish and squid consumed by the breeding populations at Auster and Taylor Glacier, respectively. |
format |
Article in Journal/Newspaper |
author |
Robertson, Graham Newgrain, Keith |
author_facet |
Robertson, Graham Newgrain, Keith |
author_sort |
Robertson, Graham |
title |
The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks |
title_short |
The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks |
title_full |
The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks |
title_fullStr |
The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks |
title_full_unstemmed |
The food and energy intake rates of adult emperor penguins ( Aptenodytes forsteri ) rearing chicks |
title_sort |
food and energy intake rates of adult emperor penguins ( aptenodytes forsteri ) rearing chicks |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1017/s0954102096000077 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000077 |
long_lat |
ENVELOPE(162.167,162.167,-77.733,-77.733) ENVELOPE(-59.467,-59.467,-63.817,-63.817) |
geographic |
Taylor Glacier Auster |
geographic_facet |
Taylor Glacier Auster |
genre |
Antarctic Science Aptenodytes forsteri Emperor penguins Taylor Glacier |
genre_facet |
Antarctic Science Aptenodytes forsteri Emperor penguins Taylor Glacier |
op_source |
Antarctic Science volume 8, issue 1, page 37-44 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102096000077 |
container_title |
Antarctic Science |
container_volume |
8 |
container_issue |
1 |
container_start_page |
37 |
op_container_end_page |
44 |
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1792495045670076416 |