Foraging strategies of Antarctic Fulmarine petrels
During breeding, procellariiform seabirds are typical central-place foragers, depending on distant pelagic resources. Especially in polar environments, where there is only a short time window to complete the breeding season, high chick provisioning rates are needed to allow chicks to fledge successf...
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ftunivwagenin:oai:library.wur.nl:wurpubs/395642 2024-02-04T09:53:48+01:00 Foraging strategies of Antarctic Fulmarine petrels Creuwels, J.C.S. Engelhard, G.A. van Franeker, J.A. van der Veer, W. Hasperhoven, J.G. Ruiterman, W. 2010 application/pdf https://research.wur.nl/en/publications/foraging-strategies-of-antarctic-fulmarine-petrels en eng https://edepot.wur.nl/149015 https://research.wur.nl/en/publications/foraging-strategies-of-antarctic-fulmarine-petrels info:eu-repo/semantics/openAccess Wageningen University & Research Marine Ornithology 38 (2010) 1 ISSN: 1018-3337 Antarctica Automatic weighing system Chick growth Chick provisioning Foraging strategies Fulmarus glacialoides Procellariiformes Thalassoica antarctica info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2010 ftunivwagenin 2024-01-10T23:23:02Z During breeding, procellariiform seabirds are typical central-place foragers, depending on distant pelagic resources. Especially in polar environments, where there is only a short time window to complete the breeding season, high chick provisioning rates are needed to allow chicks to fledge successfully. The duration of the chick period and of chick growth are linked to provisioning parameters such as the frequency and quantity of the chick meals, but probably also to the quality of the food delivered. We studied the provisioning and growth of chicks of Southern Fulmars Fulmarus glacialoides and Antarctic Petrels Thalassoica antarctica on Ardery Island (66°S, 110°E) near the Australian Antarctic station Casey. During two seasons (1998, 1999) we deployed artificial nests to collect data on chick provisioning. Southern Fulmars delivered meals more frequently (one per 14 hours) than did Antarctic Petrels (one every 25-26 hours). In 1998, the mass of meals brought to chicks of both species was not significantly different and averaged around 128 g. In 1999, the meal mass of Southern Fulmars remained the same, but that of the Antarctic Petrel was 28 g heavier. Chick provisioning rates calculated from meal frequencies and masses were significantly different between Southern Fulmars (254 g/d) and Antarctic Petrels (151 g/d), even after correction for body size. Because growth rates for the two species were not significantly different we suggest that Antarctic Petrels deliver meals of higher nutritional value, probably related to food reaching a higher density in the parents’ stomach during their longer foraging trips. Article in Journal/Newspaper Antarc* Antarctic Antarctic Petrel Antarctica Ardery Island Thalassoica antarctica Wageningen UR (University & Research Centre): Digital Library Antarctic The Antarctic Ardery Island ENVELOPE(110.450,110.450,-66.371,-66.371) |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Antarctica Automatic weighing system Chick growth Chick provisioning Foraging strategies Fulmarus glacialoides Procellariiformes Thalassoica antarctica |
spellingShingle |
Antarctica Automatic weighing system Chick growth Chick provisioning Foraging strategies Fulmarus glacialoides Procellariiformes Thalassoica antarctica Creuwels, J.C.S. Engelhard, G.A. van Franeker, J.A. van der Veer, W. Hasperhoven, J.G. Ruiterman, W. Foraging strategies of Antarctic Fulmarine petrels |
topic_facet |
Antarctica Automatic weighing system Chick growth Chick provisioning Foraging strategies Fulmarus glacialoides Procellariiformes Thalassoica antarctica |
description |
During breeding, procellariiform seabirds are typical central-place foragers, depending on distant pelagic resources. Especially in polar environments, where there is only a short time window to complete the breeding season, high chick provisioning rates are needed to allow chicks to fledge successfully. The duration of the chick period and of chick growth are linked to provisioning parameters such as the frequency and quantity of the chick meals, but probably also to the quality of the food delivered. We studied the provisioning and growth of chicks of Southern Fulmars Fulmarus glacialoides and Antarctic Petrels Thalassoica antarctica on Ardery Island (66°S, 110°E) near the Australian Antarctic station Casey. During two seasons (1998, 1999) we deployed artificial nests to collect data on chick provisioning. Southern Fulmars delivered meals more frequently (one per 14 hours) than did Antarctic Petrels (one every 25-26 hours). In 1998, the mass of meals brought to chicks of both species was not significantly different and averaged around 128 g. In 1999, the meal mass of Southern Fulmars remained the same, but that of the Antarctic Petrel was 28 g heavier. Chick provisioning rates calculated from meal frequencies and masses were significantly different between Southern Fulmars (254 g/d) and Antarctic Petrels (151 g/d), even after correction for body size. Because growth rates for the two species were not significantly different we suggest that Antarctic Petrels deliver meals of higher nutritional value, probably related to food reaching a higher density in the parents’ stomach during their longer foraging trips. |
format |
Article in Journal/Newspaper |
author |
Creuwels, J.C.S. Engelhard, G.A. van Franeker, J.A. van der Veer, W. Hasperhoven, J.G. Ruiterman, W. |
author_facet |
Creuwels, J.C.S. Engelhard, G.A. van Franeker, J.A. van der Veer, W. Hasperhoven, J.G. Ruiterman, W. |
author_sort |
Creuwels, J.C.S. |
title |
Foraging strategies of Antarctic Fulmarine petrels |
title_short |
Foraging strategies of Antarctic Fulmarine petrels |
title_full |
Foraging strategies of Antarctic Fulmarine petrels |
title_fullStr |
Foraging strategies of Antarctic Fulmarine petrels |
title_full_unstemmed |
Foraging strategies of Antarctic Fulmarine petrels |
title_sort |
foraging strategies of antarctic fulmarine petrels |
publishDate |
2010 |
url |
https://research.wur.nl/en/publications/foraging-strategies-of-antarctic-fulmarine-petrels |
long_lat |
ENVELOPE(110.450,110.450,-66.371,-66.371) |
geographic |
Antarctic The Antarctic Ardery Island |
geographic_facet |
Antarctic The Antarctic Ardery Island |
genre |
Antarc* Antarctic Antarctic Petrel Antarctica Ardery Island Thalassoica antarctica |
genre_facet |
Antarc* Antarctic Antarctic Petrel Antarctica Ardery Island Thalassoica antarctica |
op_source |
Marine Ornithology 38 (2010) 1 ISSN: 1018-3337 |
op_relation |
https://edepot.wur.nl/149015 https://research.wur.nl/en/publications/foraging-strategies-of-antarctic-fulmarine-petrels |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
_version_ |
1789968268774080512 |