Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica)
Adélie penguin (Pygoscelis adeliae) modern and fossil eggshells and guano samples collected from ornithogenic soils in Terra Nova Bay (Victoria Land, Ross Sea) were processed for carbon and nitrogen isotopic ratios with the aim of detecting past penguin dietary changes. A detailed and greatly expand...
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Springer Verlag Germany:Tiergartenstrasse 17, D 69121 Heidelberg Germany:011 49 6221 3450, EMAIL: g.braun@springer.de, INTERNET: http://www.springer.de, Fax: 011 49 6221 345229
2010
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Online Access: | http://hdl.handle.net/11573/38615 https://doi.org/10.1007/s00442-010-1790-2 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000284271900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a http://www.scopus.com/inward/record.url?eid=2-s2.0-78449233758&partnerID=65&md5=67229def8649aa43c87c308379405aca |
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ftunivromairis:oai:iris.uniroma1.it:11573/38615 2024-02-11T09:57:03+01:00 Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) Sandra Lorenzini Carlo Baroni Anthony E. Fallick Ilaria Baneschi Giovanni Zanchetta Luigi Dallai SALVATORE, Maria Cristina Sandra, Lorenzini Carlo, Baroni Fallick, Anthony E. Ilaria, Baneschi Salvatore, Maria Cristina Giovanni, Zanchetta Dallai, Luigi 2010 STAMPA http://hdl.handle.net/11573/38615 https://doi.org/10.1007/s00442-010-1790-2 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000284271900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a http://www.scopus.com/inward/record.url?eid=2-s2.0-78449233758&partnerID=65&md5=67229def8649aa43c87c308379405aca eng eng Springer Verlag Germany:Tiergartenstrasse 17, D 69121 Heidelberg Germany:011 49 6221 3450, EMAIL: g.braun@springer.de, INTERNET: http://www.springer.de, Fax: 011 49 6221 345229 info:eu-repo/semantics/altIdentifier/pmid/20886238 info:eu-repo/semantics/altIdentifier/wos/WOS:000284271900007 volume:164 issue:4 firstpage:911 lastpage:919 numberofpages:9 journal:OECOLOGIA http://hdl.handle.net/11573/38615 doi:10.1007/s00442-010-1790-2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78449233758 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000284271900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a http://www.scopus.com/inward/record.url?eid=2-s2.0-78449233758&partnerID=65&md5=67229def8649aa43c87c308379405aca adélie penguin holocene paleodiet stable isotopes info:eu-repo/semantics/article 2010 ftunivromairis https://doi.org/10.1007/s00442-010-1790-2 2024-01-24T17:57:42Z Adélie penguin (Pygoscelis adeliae) modern and fossil eggshells and guano samples collected from ornithogenic soils in Terra Nova Bay (Victoria Land, Ross Sea) were processed for carbon and nitrogen isotopic ratios with the aim of detecting past penguin dietary changes. A detailed and greatly expanded Adélie penguin dietary record dated back to 7,200 years BP has been reconstructed for the investigated area. Our data indicate a significant dietary shift between fish and krill, with a gradual decrease from past to present time in the proportion of fish compared to krill in Adélie penguin diet. From 7,200 to 2,000 years BP, δ13C and δ15N values indicate fish as the most eaten prey. The dietary contribution of lower-trophic prey in penguin diet started becoming evident not earlier than 2,000 years BP, when the δ13C values reveal a change in the penguin feeding behavior. Modern eggshell and guano samples reveal a major dietary contribution of krill but not a krill-dominated diet, since δ13C values remain much too high if krill prevail in the diet. According to the Holocene environmental background attested for Victoria Land, Adélie penguin dietary shifts between fish and krill seem to reflect penguin paleoecological responses to different paleoenvironmental settings with different conditions of sea-ice extension and persistence. Furthermore, Adélie penguin diet appears to be particularly affected by environmental changes in a very specific period within the breeding season, namely the egg-laying period when penguin dietary and feeding habit shifts are clearly documented by the δ13C of eggshell carbonate. © 2010 Springer-Verlag. Article in Journal/Newspaper Antarc* Antarctica Pygoscelis adeliae Ross Sea Sea ice Victoria Land Sapienza Università di Roma: CINECA IRIS Guano ENVELOPE(141.604,141.604,-66.775,-66.775) Ross Sea Terra Nova Bay Victoria Land Oecologia 164 4 911 919 |
institution |
Open Polar |
collection |
Sapienza Università di Roma: CINECA IRIS |
op_collection_id |
ftunivromairis |
language |
English |
topic |
adélie penguin holocene paleodiet stable isotopes |
spellingShingle |
adélie penguin holocene paleodiet stable isotopes Sandra Lorenzini Carlo Baroni Anthony E. Fallick Ilaria Baneschi Giovanni Zanchetta Luigi Dallai SALVATORE, Maria Cristina Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) |
topic_facet |
adélie penguin holocene paleodiet stable isotopes |
description |
Adélie penguin (Pygoscelis adeliae) modern and fossil eggshells and guano samples collected from ornithogenic soils in Terra Nova Bay (Victoria Land, Ross Sea) were processed for carbon and nitrogen isotopic ratios with the aim of detecting past penguin dietary changes. A detailed and greatly expanded Adélie penguin dietary record dated back to 7,200 years BP has been reconstructed for the investigated area. Our data indicate a significant dietary shift between fish and krill, with a gradual decrease from past to present time in the proportion of fish compared to krill in Adélie penguin diet. From 7,200 to 2,000 years BP, δ13C and δ15N values indicate fish as the most eaten prey. The dietary contribution of lower-trophic prey in penguin diet started becoming evident not earlier than 2,000 years BP, when the δ13C values reveal a change in the penguin feeding behavior. Modern eggshell and guano samples reveal a major dietary contribution of krill but not a krill-dominated diet, since δ13C values remain much too high if krill prevail in the diet. According to the Holocene environmental background attested for Victoria Land, Adélie penguin dietary shifts between fish and krill seem to reflect penguin paleoecological responses to different paleoenvironmental settings with different conditions of sea-ice extension and persistence. Furthermore, Adélie penguin diet appears to be particularly affected by environmental changes in a very specific period within the breeding season, namely the egg-laying period when penguin dietary and feeding habit shifts are clearly documented by the δ13C of eggshell carbonate. © 2010 Springer-Verlag. |
author2 |
Sandra, Lorenzini Carlo, Baroni Fallick, Anthony E. Ilaria, Baneschi Salvatore, Maria Cristina Giovanni, Zanchetta Dallai, Luigi |
format |
Article in Journal/Newspaper |
author |
Sandra Lorenzini Carlo Baroni Anthony E. Fallick Ilaria Baneschi Giovanni Zanchetta Luigi Dallai SALVATORE, Maria Cristina |
author_facet |
Sandra Lorenzini Carlo Baroni Anthony E. Fallick Ilaria Baneschi Giovanni Zanchetta Luigi Dallai SALVATORE, Maria Cristina |
author_sort |
Sandra Lorenzini |
title |
Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) |
title_short |
Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) |
title_full |
Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) |
title_fullStr |
Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) |
title_full_unstemmed |
Stable isotopes reveal Holocene changes in the diet of Adélie penguins in Northern Victoria Land (Ross Sea, Antarctica) |
title_sort |
stable isotopes reveal holocene changes in the diet of adélie penguins in northern victoria land (ross sea, antarctica) |
publisher |
Springer Verlag Germany:Tiergartenstrasse 17, D 69121 Heidelberg Germany:011 49 6221 3450, EMAIL: g.braun@springer.de, INTERNET: http://www.springer.de, Fax: 011 49 6221 345229 |
publishDate |
2010 |
url |
http://hdl.handle.net/11573/38615 https://doi.org/10.1007/s00442-010-1790-2 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000284271900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a http://www.scopus.com/inward/record.url?eid=2-s2.0-78449233758&partnerID=65&md5=67229def8649aa43c87c308379405aca |
long_lat |
ENVELOPE(141.604,141.604,-66.775,-66.775) |
geographic |
Guano Ross Sea Terra Nova Bay Victoria Land |
geographic_facet |
Guano Ross Sea Terra Nova Bay Victoria Land |
genre |
Antarc* Antarctica Pygoscelis adeliae Ross Sea Sea ice Victoria Land |
genre_facet |
Antarc* Antarctica Pygoscelis adeliae Ross Sea Sea ice Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/20886238 info:eu-repo/semantics/altIdentifier/wos/WOS:000284271900007 volume:164 issue:4 firstpage:911 lastpage:919 numberofpages:9 journal:OECOLOGIA http://hdl.handle.net/11573/38615 doi:10.1007/s00442-010-1790-2 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-78449233758 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000284271900007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a http://www.scopus.com/inward/record.url?eid=2-s2.0-78449233758&partnerID=65&md5=67229def8649aa43c87c308379405aca |
op_doi |
https://doi.org/10.1007/s00442-010-1790-2 |
container_title |
Oecologia |
container_volume |
164 |
container_issue |
4 |
container_start_page |
911 |
op_container_end_page |
919 |
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1790608086552018944 |