Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica)
The identification of several abandoned penguin colonies on Victoria Land coastal areas and more than 200 radiocarbon dates provide a ≈7200-yr spanning Adélie penguin history (> 8000 yr BP considering calibrated dates). These data also supply information about Holocene environmental changes, espe...
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U.S. Geological Survey and The National Academies
2007
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Online Access: | http://hdl.handle.net/11573/195541 |
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ftunivromairis:oai:iris.uniroma1.it:11573/195541 2024-02-11T09:54:43+01:00 Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) BARONI C. LORENZINI S. OLMASTRONI S. SALVATORE, Maria Cristina Baroni, C. Lorenzini, S. Salvatore, Maria Cristina Olmastroni, S. 2007 STAMPA http://hdl.handle.net/11573/195541 eng eng U.S. Geological Survey and The National Academies country:USA ispartofbook:Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES X, edited by A. K. Cooper and C. R. Raymond et al. 10th International Symposium on Antarctic Earth Science volume:1047 firstpage:108 lastpage:112 numberofpages:5 http://hdl.handle.net/11573/195541 Adelie penguin palaeodiet environmental change Antarctica info:eu-repo/semantics/conferenceObject 2007 ftunivromairis 2024-01-24T17:49:13Z The identification of several abandoned penguin colonies on Victoria Land coastal areas and more than 200 radiocarbon dates provide a ≈7200-yr spanning Adélie penguin history (> 8000 yr BP considering calibrated dates). These data also supply information about Holocene environmental changes, especially regarding sea-ice extension. Between 5000 and 2500 years BP, Adélie Penguin colonies were more numerous than at present and those presently occupied were more extended (penguin optimum). Between 2300 and 1100 penguin population dramatically decreased in southern Scott Coast and in Terra Nova Bay; sea-ice extension and persistence were reduced due to warmer-than present condition in the Ross Sea. Paleodietary studies also contribute to better define the Holocene environmental picture. Due to ecological competition, variation of fish exploitation respect to krill in Adélie penguin diet seems to reflect sea-ice extension and persistence. Conference Object Adelie penguin Antarc* Antarctica Ross Sea Sea ice Victoria Land Sapienza Università di Roma: CINECA IRIS Ross Sea Scott Coast ENVELOPE(162.500,162.500,-76.500,-76.500) Terra Nova Bay Victoria Land |
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Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
Adelie penguin palaeodiet environmental change Antarctica |
spellingShingle |
Adelie penguin palaeodiet environmental change Antarctica BARONI C. LORENZINI S. OLMASTRONI S. SALVATORE, Maria Cristina Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) |
topic_facet |
Adelie penguin palaeodiet environmental change Antarctica |
description |
The identification of several abandoned penguin colonies on Victoria Land coastal areas and more than 200 radiocarbon dates provide a ≈7200-yr spanning Adélie penguin history (> 8000 yr BP considering calibrated dates). These data also supply information about Holocene environmental changes, especially regarding sea-ice extension. Between 5000 and 2500 years BP, Adélie Penguin colonies were more numerous than at present and those presently occupied were more extended (penguin optimum). Between 2300 and 1100 penguin population dramatically decreased in southern Scott Coast and in Terra Nova Bay; sea-ice extension and persistence were reduced due to warmer-than present condition in the Ross Sea. Paleodietary studies also contribute to better define the Holocene environmental picture. Due to ecological competition, variation of fish exploitation respect to krill in Adélie penguin diet seems to reflect sea-ice extension and persistence. |
author2 |
Baroni, C. Lorenzini, S. Salvatore, Maria Cristina Olmastroni, S. |
format |
Conference Object |
author |
BARONI C. LORENZINI S. OLMASTRONI S. SALVATORE, Maria Cristina |
author_facet |
BARONI C. LORENZINI S. OLMASTRONI S. SALVATORE, Maria Cristina |
author_sort |
BARONI C. |
title |
Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) |
title_short |
Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) |
title_full |
Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) |
title_fullStr |
Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) |
title_full_unstemmed |
Adélie penguins colonization history and paleodiet trends document Holocene environmental changes in Victoria Land (Antarctica) |
title_sort |
adélie penguins colonization history and paleodiet trends document holocene environmental changes in victoria land (antarctica) |
publisher |
U.S. Geological Survey and The National Academies |
publishDate |
2007 |
url |
http://hdl.handle.net/11573/195541 |
long_lat |
ENVELOPE(162.500,162.500,-76.500,-76.500) |
geographic |
Ross Sea Scott Coast Terra Nova Bay Victoria Land |
geographic_facet |
Ross Sea Scott Coast Terra Nova Bay Victoria Land |
genre |
Adelie penguin Antarc* Antarctica Ross Sea Sea ice Victoria Land |
genre_facet |
Adelie penguin Antarc* Antarctica Ross Sea Sea ice Victoria Land |
op_relation |
ispartofbook:Antarctica: A Keystone in a Changing World – Online Proceedings of the 10th ISAES X, edited by A. K. Cooper and C. R. Raymond et al. 10th International Symposium on Antarctic Earth Science volume:1047 firstpage:108 lastpage:112 numberofpages:5 http://hdl.handle.net/11573/195541 |
_version_ |
1790599954927976448 |