Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate
Ecosystems and populations are known to be influenced not only by long-term climatic trends, but also by other short-term climatic modes, such as interannual and decadal-scale variabilities. Because interactions between climatic forcing, biotic and abiotic components of ecosystems are subtle and com...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564086 http://www.ncbi.nlm.nih.gov/pubmed/16024342 https://doi.org/10.1098/rspb.2004.2978 |
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ftpubmed:oai:pubmedcentral.nih.gov:1564086 2023-05-15T13:54:12+02:00 Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate Jenouvrier, Stéphanie Weimerskirch, Henri Barbraud, Christophe Park, Young-Hyang Cazelles, Bernard 2005-05-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564086 http://www.ncbi.nlm.nih.gov/pubmed/16024342 https://doi.org/10.1098/rspb.2004.2978 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564086 http://www.ncbi.nlm.nih.gov/pubmed/16024342 http://dx.doi.org/10.1098/rspb.2004.2978 © 2005 The Royal Society Research Article Text 2005 ftpubmed https://doi.org/10.1098/rspb.2004.2978 2013-08-31T06:31:45Z Ecosystems and populations are known to be influenced not only by long-term climatic trends, but also by other short-term climatic modes, such as interannual and decadal-scale variabilities. Because interactions between climatic forcing, biotic and abiotic components of ecosystems are subtle and complex, analysis of long-term series of both biological and physical factors is essential to understanding these interactions. Here, we apply a wavelet analysis simultaneously to long-term datasets on the environment and on the populations and breeding success of three Antarctic seabirds (southern fulmar, snow petrel, emperor penguin) breeding in Terre Adélie, to study the effects of climate fluctuations on Antarctic marine ecosystems. We show that over the past 40 years, populations and demographic parameters of the three species fluctuate with a periodicity of 3–5 years that was also detected in sea-ice extent and the Southern Oscillation Index. Although the major periodicity of these interannual fluctuations is not common to different species and environmental variables, their cyclic characteristics reveal a significant change since 1980. Moreover, sliding-correlation analysis highlighted the relationships between environmental variables and the demography of the three species, with important change of correlation occurring between the end of the 1970s and the beginning of the 1980s. These results suggest that a regime shift has probably occurred during this period, significantly affecting the Antarctic ecosystem, but with contrasted effects on the three species. Text Antarc* Antarctic Sea ice Snow Petrel PubMed Central (PMC) Antarctic Fulmar ENVELOPE(-46.016,-46.016,-60.616,-60.616) Terre Adélie ENVELOPE(139.000,139.000,-67.000,-67.000) Terre-Adélie ENVELOPE(138.991,138.991,-59.999,-59.999) The Antarctic Proceedings of the Royal Society B: Biological Sciences 272 1566 887 895 |
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PubMed Central (PMC) |
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English |
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Research Article |
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Research Article Jenouvrier, Stéphanie Weimerskirch, Henri Barbraud, Christophe Park, Young-Hyang Cazelles, Bernard Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate |
topic_facet |
Research Article |
description |
Ecosystems and populations are known to be influenced not only by long-term climatic trends, but also by other short-term climatic modes, such as interannual and decadal-scale variabilities. Because interactions between climatic forcing, biotic and abiotic components of ecosystems are subtle and complex, analysis of long-term series of both biological and physical factors is essential to understanding these interactions. Here, we apply a wavelet analysis simultaneously to long-term datasets on the environment and on the populations and breeding success of three Antarctic seabirds (southern fulmar, snow petrel, emperor penguin) breeding in Terre Adélie, to study the effects of climate fluctuations on Antarctic marine ecosystems. We show that over the past 40 years, populations and demographic parameters of the three species fluctuate with a periodicity of 3–5 years that was also detected in sea-ice extent and the Southern Oscillation Index. Although the major periodicity of these interannual fluctuations is not common to different species and environmental variables, their cyclic characteristics reveal a significant change since 1980. Moreover, sliding-correlation analysis highlighted the relationships between environmental variables and the demography of the three species, with important change of correlation occurring between the end of the 1970s and the beginning of the 1980s. These results suggest that a regime shift has probably occurred during this period, significantly affecting the Antarctic ecosystem, but with contrasted effects on the three species. |
format |
Text |
author |
Jenouvrier, Stéphanie Weimerskirch, Henri Barbraud, Christophe Park, Young-Hyang Cazelles, Bernard |
author_facet |
Jenouvrier, Stéphanie Weimerskirch, Henri Barbraud, Christophe Park, Young-Hyang Cazelles, Bernard |
author_sort |
Jenouvrier, Stéphanie |
title |
Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate |
title_short |
Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate |
title_full |
Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate |
title_fullStr |
Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate |
title_full_unstemmed |
Evidence of a shift in the cyclicity of Antarctic seabird dynamics linked to climate |
title_sort |
evidence of a shift in the cyclicity of antarctic seabird dynamics linked to climate |
publisher |
The Royal Society |
publishDate |
2005 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564086 http://www.ncbi.nlm.nih.gov/pubmed/16024342 https://doi.org/10.1098/rspb.2004.2978 |
long_lat |
ENVELOPE(-46.016,-46.016,-60.616,-60.616) ENVELOPE(139.000,139.000,-67.000,-67.000) ENVELOPE(138.991,138.991,-59.999,-59.999) |
geographic |
Antarctic Fulmar Terre Adélie Terre-Adélie The Antarctic |
geographic_facet |
Antarctic Fulmar Terre Adélie Terre-Adélie The Antarctic |
genre |
Antarc* Antarctic Sea ice Snow Petrel |
genre_facet |
Antarc* Antarctic Sea ice Snow Petrel |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1564086 http://www.ncbi.nlm.nih.gov/pubmed/16024342 http://dx.doi.org/10.1098/rspb.2004.2978 |
op_rights |
© 2005 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2004.2978 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
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272 |
container_issue |
1566 |
container_start_page |
887 |
op_container_end_page |
895 |
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1766259883536023552 |