Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration
The Short-tailed Shearwater, Puffinus tenuirostris, is a trans-equatorial migrant, breeding in Tasmania and other parts of southeastern Australia during the Austral summer and migrating to the northern North Pacific for the Boreal summer. Juveniles, in particular, suffer considerable mortality durin...
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ftunivtasmania:oai:eprints.utas.edu.au:13160 2023-05-15T13:36:47+02:00 Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration Oka, N 2008 application/pdf https://eprints.utas.edu.au/13160/ https://eprints.utas.edu.au/13160/4/2008__Oka_nutrient_reserve.pdf en eng https://eprints.utas.edu.au/13160/4/2008__Oka_nutrient_reserve.pdf Oka, N 2008 , 'Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration' , Papers and Proceedings of the Royal Society of Tasmania, vol. 142, no. 1 , pp. 197-200 , doi:10.26749/rstpp.142.1.197 <http://dx.doi.org/10.26749/rstpp.142.1.197>. cc_utas Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Article PeerReviewed 2008 ftunivtasmania https://doi.org/10.26749/rstpp.142.1.197 2020-05-30T07:26:50Z The Short-tailed Shearwater, Puffinus tenuirostris, is a trans-equatorial migrant, breeding in Tasmania and other parts of southeastern Australia during the Austral summer and migrating to the northern North Pacific for the Boreal summer. Juveniles, in particular, suffer considerable mortality during the migration. Body composition of juveniles and adults in terms of body mass, lipid content, pectoral muscle mass and bone marrow content, before and after migration was investigated. Juveniles varied greatly in body composition pre- and post-migration and took longer to recover their nutritional status than adults. Adults sustained a better body composition, showing a moderate decrease in body fat upon arrival in the north and recovering their body mass and lipid supply during their stay. The lipid content of beachcast bird carcasses (mean, 4 g) was the minimum necessary for cell membranes and was not metabolisable for energy. Pectoral muscle protein remained high among birds under hyper-nutritional conditions, and decreased gradually at first as lipids decreased, and then rapidly at late malnutritional stages when most lipids had been utilised for energy. Although adults sustained their nutritional status, the amount of lipids in adults leaving the Tasmanian colony was insufficient to accomplish the long-distance migration, so post-breeding adults probably first visited Antarctic waters to accumulate fat reserves before commencing their northward migration. Article in Journal/Newspaper Antarc* Antarctic Puffinus tenuirostris University of Tasmania: UTas ePrints Antarctic Austral Pacific Papers and Proceedings of the Royal Society of Tasmania 197 200 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
spellingShingle |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Oka, N Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration |
topic_facet |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
description |
The Short-tailed Shearwater, Puffinus tenuirostris, is a trans-equatorial migrant, breeding in Tasmania and other parts of southeastern Australia during the Austral summer and migrating to the northern North Pacific for the Boreal summer. Juveniles, in particular, suffer considerable mortality during the migration. Body composition of juveniles and adults in terms of body mass, lipid content, pectoral muscle mass and bone marrow content, before and after migration was investigated. Juveniles varied greatly in body composition pre- and post-migration and took longer to recover their nutritional status than adults. Adults sustained a better body composition, showing a moderate decrease in body fat upon arrival in the north and recovering their body mass and lipid supply during their stay. The lipid content of beachcast bird carcasses (mean, 4 g) was the minimum necessary for cell membranes and was not metabolisable for energy. Pectoral muscle protein remained high among birds under hyper-nutritional conditions, and decreased gradually at first as lipids decreased, and then rapidly at late malnutritional stages when most lipids had been utilised for energy. Although adults sustained their nutritional status, the amount of lipids in adults leaving the Tasmanian colony was insufficient to accomplish the long-distance migration, so post-breeding adults probably first visited Antarctic waters to accumulate fat reserves before commencing their northward migration. |
format |
Article in Journal/Newspaper |
author |
Oka, N |
author_facet |
Oka, N |
author_sort |
Oka, N |
title |
Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration |
title_short |
Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration |
title_full |
Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration |
title_fullStr |
Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration |
title_full_unstemmed |
Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration |
title_sort |
nutrient reserve difference between young and adult short-tailed shearwaters, puffinus tenuirostris, before and after trans-equatorial migration |
publishDate |
2008 |
url |
https://eprints.utas.edu.au/13160/ https://eprints.utas.edu.au/13160/4/2008__Oka_nutrient_reserve.pdf |
geographic |
Antarctic Austral Pacific |
geographic_facet |
Antarctic Austral Pacific |
genre |
Antarc* Antarctic Puffinus tenuirostris |
genre_facet |
Antarc* Antarctic Puffinus tenuirostris |
op_relation |
https://eprints.utas.edu.au/13160/4/2008__Oka_nutrient_reserve.pdf Oka, N 2008 , 'Nutrient reserve difference between young and adult Short-tailed Shearwaters, Puffinus tenuirostris, before and after trans-equatorial migration' , Papers and Proceedings of the Royal Society of Tasmania, vol. 142, no. 1 , pp. 197-200 , doi:10.26749/rstpp.142.1.197 <http://dx.doi.org/10.26749/rstpp.142.1.197>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.26749/rstpp.142.1.197 |
container_title |
Papers and Proceedings of the Royal Society of Tasmania |
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197 |
op_container_end_page |
200 |
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1766084070980190208 |