Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses
Allocation processes play a central role in life history theories. Yet very few studies have been carried out on the link between foraging and life history in the context of allocation of resources. Here we report a study examining the relationship between foraging and allocation of resources in the...
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Online Access: | https://oceanrep.geomar.de/id/eprint/52312/ https://oceanrep.geomar.de/id/eprint/52312/1/3222.pdf https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B2 https://doi.org/10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 |
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ftoceanrep:oai:oceanrep.geomar.de:52312 2023-05-15T15:59:34+02:00 Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses Weimerskirch, Henri Cherel, Yves Cuenot-Chaillet, Franck Ridoux, Vincent 1997-10 text https://oceanrep.geomar.de/id/eprint/52312/ https://oceanrep.geomar.de/id/eprint/52312/1/3222.pdf https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B2 https://doi.org/10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 en eng Wiley https://oceanrep.geomar.de/id/eprint/52312/1/3222.pdf Weimerskirch, H., Cherel, Y., Cuenot-Chaillet, F. and Ridoux, V. (1997) Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses. Ecology, 78 (7). pp. 2051-2063. DOI 10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 <https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B2>. doi:10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 info:eu-repo/semantics/closedAccess Article PeerReviewed 1997 ftoceanrep https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B210.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 2023-04-07T15:55:25Z Allocation processes play a central role in life history theories. Yet very few studies have been carried out on the link between foraging and life history in the context of allocation of resources. Here we report a study examining the relationship between foraging and allocation of resources in the Wandering Albatross Diomedea exulans of Crozet Islands. We simultaneously studied individual foraging strategies at sea and differential allocation to reproduction and storage by measuring the energy supplied to chicks and the variation of body mass of the adult. Satellite tracking and continuous monitoring of nest attendance by adults showed that while rearing a chick Wandering Albatrosses have two specific alternative foraging strategies. They either forage in short trips, short in duration and close to the colony over the southeastern slope of the peri‐insular shelf, or in long trips far from the colony in the oceanic waters north of Crozet. On average, birds made five successive short trips before making a long trip. Chicks received a meal every 1.8 d and were fed with fresh prey, 72% squid and 24% fish, and a liquid fraction composed of oil and water. During short trips birds appear to rely to a great extent on Moroteuthis ingens, a squid species probably available in large numbers at the southeastern edge of the Crozet shelf. The measure of energy flows indicates that 74% of the energy delivered to the chick comes from short trips, whereas only 33.8% of the total energy is gained at sea during these trips. Males spent a greater proportion of their time foraging in short trips than females, and consequently chicks received 61.3% of their meals from males and 38.7% from females. Adult birds tended to lose mass after short trips and to lose more mass with increased duration of short trips, whereas they gained mass after long trips. They initiated long trips when their body mass was low. Although Wandering Albatrosses are able to provision their chicks at a rapid rate because of the proximity of an abundant ... Article in Journal/Newspaper Crozet Islands Diomedea exulans Wandering Albatross OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Allocation processes play a central role in life history theories. Yet very few studies have been carried out on the link between foraging and life history in the context of allocation of resources. Here we report a study examining the relationship between foraging and allocation of resources in the Wandering Albatross Diomedea exulans of Crozet Islands. We simultaneously studied individual foraging strategies at sea and differential allocation to reproduction and storage by measuring the energy supplied to chicks and the variation of body mass of the adult. Satellite tracking and continuous monitoring of nest attendance by adults showed that while rearing a chick Wandering Albatrosses have two specific alternative foraging strategies. They either forage in short trips, short in duration and close to the colony over the southeastern slope of the peri‐insular shelf, or in long trips far from the colony in the oceanic waters north of Crozet. On average, birds made five successive short trips before making a long trip. Chicks received a meal every 1.8 d and were fed with fresh prey, 72% squid and 24% fish, and a liquid fraction composed of oil and water. During short trips birds appear to rely to a great extent on Moroteuthis ingens, a squid species probably available in large numbers at the southeastern edge of the Crozet shelf. The measure of energy flows indicates that 74% of the energy delivered to the chick comes from short trips, whereas only 33.8% of the total energy is gained at sea during these trips. Males spent a greater proportion of their time foraging in short trips than females, and consequently chicks received 61.3% of their meals from males and 38.7% from females. Adult birds tended to lose mass after short trips and to lose more mass with increased duration of short trips, whereas they gained mass after long trips. They initiated long trips when their body mass was low. Although Wandering Albatrosses are able to provision their chicks at a rapid rate because of the proximity of an abundant ... |
format |
Article in Journal/Newspaper |
author |
Weimerskirch, Henri Cherel, Yves Cuenot-Chaillet, Franck Ridoux, Vincent |
spellingShingle |
Weimerskirch, Henri Cherel, Yves Cuenot-Chaillet, Franck Ridoux, Vincent Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses |
author_facet |
Weimerskirch, Henri Cherel, Yves Cuenot-Chaillet, Franck Ridoux, Vincent |
author_sort |
Weimerskirch, Henri |
title |
Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses |
title_short |
Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses |
title_full |
Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses |
title_fullStr |
Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses |
title_full_unstemmed |
Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses |
title_sort |
aternative foraging strategies and resource allocation by male and female wandering albatrosses |
publisher |
Wiley |
publishDate |
1997 |
url |
https://oceanrep.geomar.de/id/eprint/52312/ https://oceanrep.geomar.de/id/eprint/52312/1/3222.pdf https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B2 https://doi.org/10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 |
genre |
Crozet Islands Diomedea exulans Wandering Albatross |
genre_facet |
Crozet Islands Diomedea exulans Wandering Albatross |
op_relation |
https://oceanrep.geomar.de/id/eprint/52312/1/3222.pdf Weimerskirch, H., Cherel, Y., Cuenot-Chaillet, F. and Ridoux, V. (1997) Aternative foraging strategies and resource allocation by male and female Wandering Albatrosses. Ecology, 78 (7). pp. 2051-2063. DOI 10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 <https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B2>. doi:10.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1890/0012-9658%281997%29078%5B2051%3AAFSARA%5D2.0.CO%3B210.1890/0012-9658(1997)078[2051:AFSARA]2.0.CO;2 |
_version_ |
1766395514085965824 |