Temporal change of an Adelie penguin population in the creche-forming period
The temporal change of an Adelie penguin population was observed in the B4 colony, Northern Rookery, Cape Bird, Ross Island in the 1978-79 summer season. Between January 1 and 24,1979,after the preparatory observation in late December, the number and position of occupied nests, occupying birds, re-o...
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National Institute of Polar Research
1988
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ftdoajarticles:oai:doaj.org/article:83f9d3e24fae44069be1c9b2ffd36a4d 2023-05-15T13:04:41+02:00 Temporal change of an Adelie penguin population in the creche-forming period Masahiro Aoyanagi 1988-03-01T00:00:00Z https://doi.org/10.15094/00008577 https://doaj.org/article/83f9d3e24fae44069be1c9b2ffd36a4d EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008577 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008577 0085-7289 2432-079X https://doaj.org/article/83f9d3e24fae44069be1c9b2ffd36a4d Antarctic Record, Vol 32, Iss 1, Pp 85-101 (1988) Geography (General) G1-922 article 1988 ftdoajarticles https://doi.org/10.15094/00008577 2022-12-31T00:07:48Z The temporal change of an Adelie penguin population was observed in the B4 colony, Northern Rookery, Cape Bird, Ross Island in the 1978-79 summer season. Between January 1 and 24,1979,after the preparatory observation in late December, the number and position of occupied nests, occupying birds, re-occupying nonbreeders and chicks were observed and recorded on a map at least once a day. Upon abandonment of the nests by the occupant birds, the chicks left their nests to form a creche in the colony. The nest abandonment and the creche formation were completed on January 9 and 10. Simultaneously, the free-nonbreeders entered the colony from the outside of it. Part of the chicks that left their nests gathered closely to form huddles in the creche. The size, shape and position of the huddles varied temporally. The feeding place of chicks changed from their nests to the outside of the nests and then to the outside of the colony with the progress of creche formation. Article in Journal/Newspaper Adelie penguin Ross Island Directory of Open Access Journals: DOAJ Articles Cape Bird ENVELOPE(-38.060,-38.060,-54.004,-54.004) Ross Island |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Masahiro Aoyanagi Temporal change of an Adelie penguin population in the creche-forming period |
topic_facet |
Geography (General) G1-922 |
description |
The temporal change of an Adelie penguin population was observed in the B4 colony, Northern Rookery, Cape Bird, Ross Island in the 1978-79 summer season. Between January 1 and 24,1979,after the preparatory observation in late December, the number and position of occupied nests, occupying birds, re-occupying nonbreeders and chicks were observed and recorded on a map at least once a day. Upon abandonment of the nests by the occupant birds, the chicks left their nests to form a creche in the colony. The nest abandonment and the creche formation were completed on January 9 and 10. Simultaneously, the free-nonbreeders entered the colony from the outside of it. Part of the chicks that left their nests gathered closely to form huddles in the creche. The size, shape and position of the huddles varied temporally. The feeding place of chicks changed from their nests to the outside of the nests and then to the outside of the colony with the progress of creche formation. |
format |
Article in Journal/Newspaper |
author |
Masahiro Aoyanagi |
author_facet |
Masahiro Aoyanagi |
author_sort |
Masahiro Aoyanagi |
title |
Temporal change of an Adelie penguin population in the creche-forming period |
title_short |
Temporal change of an Adelie penguin population in the creche-forming period |
title_full |
Temporal change of an Adelie penguin population in the creche-forming period |
title_fullStr |
Temporal change of an Adelie penguin population in the creche-forming period |
title_full_unstemmed |
Temporal change of an Adelie penguin population in the creche-forming period |
title_sort |
temporal change of an adelie penguin population in the creche-forming period |
publisher |
National Institute of Polar Research |
publishDate |
1988 |
url |
https://doi.org/10.15094/00008577 https://doaj.org/article/83f9d3e24fae44069be1c9b2ffd36a4d |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Cape Bird Ross Island |
geographic_facet |
Cape Bird Ross Island |
genre |
Adelie penguin Ross Island |
genre_facet |
Adelie penguin Ross Island |
op_source |
Antarctic Record, Vol 32, Iss 1, Pp 85-101 (1988) |
op_relation |
https://doi.org/10.15094/00008577 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008577 0085-7289 2432-079X https://doaj.org/article/83f9d3e24fae44069be1c9b2ffd36a4d |
op_doi |
https://doi.org/10.15094/00008577 |
_version_ |
1766367726005125120 |