Antarctic birds breed later in response to climate change
International audience In the northern hemisphere, there is compelling evidence for climate-related advances of spring events, but no such long-term biological time series exist for the southern hemisphere. We have studied a unique data set of dates of first arrival and laying of first eggs over a 5...
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fttriple:oai:gotriple.eu:10670/1.d60ecw 2023-05-15T13:42:47+02:00 Antarctic birds breed later in response to climate change Barbraud, Christophe Weimerskirch, Henri Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2006-03-01 https://hal.archives-ouvertes.fr/hal-00182577 en eng HAL CCSD National Academy of Sciences hal-00182577 10670/1.d60ecw https://hal.archives-ouvertes.fr/hal-00182577 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0027-8424 EISSN: 1091-6490 Proceedings of the National Academy of Sciences of the United States of America Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 2006, 103 (16), pp.6248-6251 Antarctica phenology seabirds sea ice geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2006 fttriple 2023-01-22T18:42:50Z International audience In the northern hemisphere, there is compelling evidence for climate-related advances of spring events, but no such long-term biological time series exist for the southern hemisphere. We have studied a unique data set of dates of first arrival and laying of first eggs over a 55-year period for the entire community of Antarctic seabirds in East Antarctica. The records over this long period show a general unexpected tendency toward later arrival and laying, an inverse trend to those observed in the northern hemisphere. Overall, species now arrive at their colonies 9.1 days later, on average, and lay eggs an average of 2.1 days later than in the early 1950s. Furthermore, these delays are linked to a decrease in sea ice extent that has occurred in eastern Antarctica, which underlies the contrasted effects of global climate change on species in Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Sea ice Unknown Antarctic East Antarctica |
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English |
topic |
Antarctica phenology seabirds sea ice geo envir |
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Antarctica phenology seabirds sea ice geo envir Barbraud, Christophe Weimerskirch, Henri Antarctic birds breed later in response to climate change |
topic_facet |
Antarctica phenology seabirds sea ice geo envir |
description |
International audience In the northern hemisphere, there is compelling evidence for climate-related advances of spring events, but no such long-term biological time series exist for the southern hemisphere. We have studied a unique data set of dates of first arrival and laying of first eggs over a 55-year period for the entire community of Antarctic seabirds in East Antarctica. The records over this long period show a general unexpected tendency toward later arrival and laying, an inverse trend to those observed in the northern hemisphere. Overall, species now arrive at their colonies 9.1 days later, on average, and lay eggs an average of 2.1 days later than in the early 1950s. Furthermore, these delays are linked to a decrease in sea ice extent that has occurred in eastern Antarctica, which underlies the contrasted effects of global climate change on species in Antarctica. |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Barbraud, Christophe Weimerskirch, Henri |
author_facet |
Barbraud, Christophe Weimerskirch, Henri |
author_sort |
Barbraud, Christophe |
title |
Antarctic birds breed later in response to climate change |
title_short |
Antarctic birds breed later in response to climate change |
title_full |
Antarctic birds breed later in response to climate change |
title_fullStr |
Antarctic birds breed later in response to climate change |
title_full_unstemmed |
Antarctic birds breed later in response to climate change |
title_sort |
antarctic birds breed later in response to climate change |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.archives-ouvertes.fr/hal-00182577 |
geographic |
Antarctic East Antarctica |
geographic_facet |
Antarctic East Antarctica |
genre |
Antarc* Antarctic Antarctica East Antarctica Sea ice |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Sea ice |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0027-8424 EISSN: 1091-6490 Proceedings of the National Academy of Sciences of the United States of America Proceedings of the National Academy of Sciences of the United States of America , National Academy of Sciences, 2006, 103 (16), pp.6248-6251 |
op_relation |
hal-00182577 10670/1.d60ecw https://hal.archives-ouvertes.fr/hal-00182577 |
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_version_ |
1766172784980918272 |