Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996)
The paper summarizes results of twenty years of seabird observations carried out between 1977 and 1996 on the western shore of Admiralty Bay (King George Island, South Shetlands, Antarctic). Changes in population size, distribution and phenology of the breeding species as well as the appearance of n...
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ftdoajarticles:oai:doaj.org/article:91ceb8d568ca4439bad6a63cab8b67de 2023-05-15T14:05:07+02:00 Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) Sierakowski Kazimierz Korczak-Abshire Małgorzata Jadwiszczak Piotr 2017-06-01T00:00:00Z https://doi.org/10.1515/popore-2017-0010 https://doaj.org/article/91ceb8d568ca4439bad6a63cab8b67de EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2017.38.issue-2/popore-2017-0010/popore-2017-0010.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2017-0010 https://doaj.org/article/91ceb8d568ca4439bad6a63cab8b67de Polish Polar Research, Vol 38, Iss 2, Pp 231-262 (2017) Antarctic Admiralty Bay ASPA 128 volant birds penguins census Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.1515/popore-2017-0010 2022-12-31T15:47:26Z The paper summarizes results of twenty years of seabird observations carried out between 1977 and 1996 on the western shore of Admiralty Bay (King George Island, South Shetlands, Antarctic). Changes in population size, distribution and phenology of the breeding species as well as the appearance of non-breeding species are reported. A total of 34 species of birds were observed, including 13 breeding species. Among the non-breeding species, four were observed to visit the site regularly, six rarely, and the remaining 11 were observed only occasionally. Among breeding populations, three Pygoscelis penguin species, the main krill consumers, were most numerous. The Adélie Penguin (P. adeliae) dominated among the penguins nesting in the investigated areas, reaching 23,661 breeding pairs in 1978. Two other penguin species were less abundant with population sizes of approximately 7,200 breeding pairs for the Chinstrap Penguin (P. antarcticus) and 3,100 breeding pairs for the Gentoo Penguin (P. papua) in the same year. During the following two decades, breeding populations of pygoscelid species experienced a declining trend and their numbers were reduced by 68.0% for Chinstrap, 67.1% for Gentoo, and 33.9% for Adélie Penguins. The data reported here represent a unique reference basis and provide valuable information about indicator species, suitable for comparison with contemporary observations of bird populations in the Antarctic Peninsula region, a place of rapidly occurring climate changes and intensive harvesting of marine living resources. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula antarcticus Chinstrap penguin Gentoo penguin King George Island Polar Research Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula King George Island Admiralty Bay Polish Polar Research 38 2 231 262 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic Admiralty Bay ASPA 128 volant birds penguins census Geology QE1-996.5 |
spellingShingle |
Antarctic Admiralty Bay ASPA 128 volant birds penguins census Geology QE1-996.5 Sierakowski Kazimierz Korczak-Abshire Małgorzata Jadwiszczak Piotr Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) |
topic_facet |
Antarctic Admiralty Bay ASPA 128 volant birds penguins census Geology QE1-996.5 |
description |
The paper summarizes results of twenty years of seabird observations carried out between 1977 and 1996 on the western shore of Admiralty Bay (King George Island, South Shetlands, Antarctic). Changes in population size, distribution and phenology of the breeding species as well as the appearance of non-breeding species are reported. A total of 34 species of birds were observed, including 13 breeding species. Among the non-breeding species, four were observed to visit the site regularly, six rarely, and the remaining 11 were observed only occasionally. Among breeding populations, three Pygoscelis penguin species, the main krill consumers, were most numerous. The Adélie Penguin (P. adeliae) dominated among the penguins nesting in the investigated areas, reaching 23,661 breeding pairs in 1978. Two other penguin species were less abundant with population sizes of approximately 7,200 breeding pairs for the Chinstrap Penguin (P. antarcticus) and 3,100 breeding pairs for the Gentoo Penguin (P. papua) in the same year. During the following two decades, breeding populations of pygoscelid species experienced a declining trend and their numbers were reduced by 68.0% for Chinstrap, 67.1% for Gentoo, and 33.9% for Adélie Penguins. The data reported here represent a unique reference basis and provide valuable information about indicator species, suitable for comparison with contemporary observations of bird populations in the Antarctic Peninsula region, a place of rapidly occurring climate changes and intensive harvesting of marine living resources. |
format |
Article in Journal/Newspaper |
author |
Sierakowski Kazimierz Korczak-Abshire Małgorzata Jadwiszczak Piotr |
author_facet |
Sierakowski Kazimierz Korczak-Abshire Małgorzata Jadwiszczak Piotr |
author_sort |
Sierakowski Kazimierz |
title |
Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) |
title_short |
Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) |
title_full |
Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) |
title_fullStr |
Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) |
title_full_unstemmed |
Changes in bird communities of Admiralty Bay, King George Island (West Antarctic): insights from monitoring data (1977–1996) |
title_sort |
changes in bird communities of admiralty bay, king george island (west antarctic): insights from monitoring data (1977–1996) |
publisher |
Polish Academy of Sciences |
publishDate |
2017 |
url |
https://doi.org/10.1515/popore-2017-0010 https://doaj.org/article/91ceb8d568ca4439bad6a63cab8b67de |
geographic |
Antarctic The Antarctic Antarctic Peninsula King George Island Admiralty Bay |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula King George Island Admiralty Bay |
genre |
Antarc* Antarctic Antarctic Peninsula antarcticus Chinstrap penguin Gentoo penguin King George Island Polar Research |
genre_facet |
Antarc* Antarctic Antarctic Peninsula antarcticus Chinstrap penguin Gentoo penguin King George Island Polar Research |
op_source |
Polish Polar Research, Vol 38, Iss 2, Pp 231-262 (2017) |
op_relation |
http://www.degruyter.com/view/j/popore.2017.38.issue-2/popore-2017-0010/popore-2017-0010.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2017-0010 https://doaj.org/article/91ceb8d568ca4439bad6a63cab8b67de |
op_doi |
https://doi.org/10.1515/popore-2017-0010 |
container_title |
Polish Polar Research |
container_volume |
38 |
container_issue |
2 |
container_start_page |
231 |
op_container_end_page |
262 |
_version_ |
1766276771675635712 |