Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia
Abstract I used a supplemental feeding experiment to determine whether adult Tufted Puffins (Fratercula cirrhata) would decrease provisioning effort in response to a reduction in nestling nutritional requirements, and to investigate the relationship between parental provisioning effort and timing of...
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Online Access: | http://dx.doi.org/10.1093/auk/121.2.463 http://academic.oup.com/auk/article-pdf/121/2/463/29688211/auk0463.pdf |
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croxfordunivpr:10.1093/auk/121.2.463 2024-04-07T07:52:31+00:00 Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia Gjerdrum, Carina Burger, A. E. 2004 http://dx.doi.org/10.1093/auk/121.2.463 http://academic.oup.com/auk/article-pdf/121/2/463/29688211/auk0463.pdf en eng Oxford University Press (OUP) The Auk volume 121, issue 2, page 463-472 ISSN 1938-4254 0004-8038 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2004 croxfordunivpr https://doi.org/10.1093/auk/121.2.463 2024-03-08T03:10:05Z Abstract I used a supplemental feeding experiment to determine whether adult Tufted Puffins (Fratercula cirrhata) would decrease provisioning effort in response to a reduction in nestling nutritional requirements, and to investigate the relationship between parental provisioning effort and timing of fledging. As predicted, parents of the supplemented nestlings decreased the number of provisioning trips but did not alter bill-load size or prey composition. Supplemental feeding significantly increased the growth of the culmen and tarsus but had no detectable effect on wing growth or body mass of chicks. Supplemented nestlings fledged significantly older than control nestlings. The maximum mass attained by the nestling and the age at which mass peaked also influenced timing of fledging. These results demonstrate that fledging age is influenced by both the energy provided by the parents and the nestling's developmental state and are consistent with the hypothesis that nestlings time their departure from the nest based on the costs and benefits of remaining. Article in Journal/Newspaper fratercula Oxford University Press Triangle Island ENVELOPE(-129.085,-129.085,69.694,69.694) The Auk 121 2 463 472 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Gjerdrum, Carina Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract I used a supplemental feeding experiment to determine whether adult Tufted Puffins (Fratercula cirrhata) would decrease provisioning effort in response to a reduction in nestling nutritional requirements, and to investigate the relationship between parental provisioning effort and timing of fledging. As predicted, parents of the supplemented nestlings decreased the number of provisioning trips but did not alter bill-load size or prey composition. Supplemental feeding significantly increased the growth of the culmen and tarsus but had no detectable effect on wing growth or body mass of chicks. Supplemented nestlings fledged significantly older than control nestlings. The maximum mass attained by the nestling and the age at which mass peaked also influenced timing of fledging. These results demonstrate that fledging age is influenced by both the energy provided by the parents and the nestling's developmental state and are consistent with the hypothesis that nestlings time their departure from the nest based on the costs and benefits of remaining. |
author2 |
Burger, A. E. |
format |
Article in Journal/Newspaper |
author |
Gjerdrum, Carina |
author_facet |
Gjerdrum, Carina |
author_sort |
Gjerdrum, Carina |
title |
Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia |
title_short |
Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia |
title_full |
Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia |
title_fullStr |
Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia |
title_full_unstemmed |
Parental Provisioning and Nestling Departure Decisions: A Supplementary Feeding Experiment in Tufted Puffins (Fratercula Cirrhata) on Triangle Island, British Columbia |
title_sort |
parental provisioning and nestling departure decisions: a supplementary feeding experiment in tufted puffins (fratercula cirrhata) on triangle island, british columbia |
publisher |
Oxford University Press (OUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1093/auk/121.2.463 http://academic.oup.com/auk/article-pdf/121/2/463/29688211/auk0463.pdf |
long_lat |
ENVELOPE(-129.085,-129.085,69.694,69.694) |
geographic |
Triangle Island |
geographic_facet |
Triangle Island |
genre |
fratercula |
genre_facet |
fratercula |
op_source |
The Auk volume 121, issue 2, page 463-472 ISSN 1938-4254 0004-8038 |
op_doi |
https://doi.org/10.1093/auk/121.2.463 |
container_title |
The Auk |
container_volume |
121 |
container_issue |
2 |
container_start_page |
463 |
op_container_end_page |
472 |
_version_ |
1795667910895599616 |