Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel
International audience Polar sea ice is changing rapidly, threatening many taxa in the Arctic and the Antarctic. Little is known about the effects of sea ice on early life-history traits of sea ice specialist species, although juvenile stages are a critical component of population dynamics and recru...
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ftccsdartic:oai:HAL:hal-01848749v1 2023-05-15T13:53:10+02:00 Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel Sauser, Christophe Delord, Karine Barbraud, Christophe Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2018-07-25 https://hal.archives-ouvertes.fr/hal-01848749 https://doi.org/10.1098/rsbl.2018.0140 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2018.0140 hal-01848749 https://hal.archives-ouvertes.fr/hal-01848749 doi:10.1098/rsbl.2018.0140 ISSN: 1744-9561 Biology Letters https://hal.archives-ouvertes.fr/hal-01848749 Biology Letters, Royal Society, The, 2018, 14 (7), ⟨10.1098/rsbl.2018.0140⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2018 ftccsdartic https://doi.org/10.1098/rsbl.2018.0140 2021-11-07T02:48:24Z International audience Polar sea ice is changing rapidly, threatening many taxa in the Arctic and the Antarctic. Little is known about the effects of sea ice on early life-history traits of sea ice specialist species, although juvenile stages are a critical component of population dynamics and recruitment. We examined how annual variation in sea ice concentration (SIC) affects juvenile survival and body condition at fledging in the snow petrel Pagodroma nivea using long-term datasets encompassing 22 years for body condition and 37 years for juvenile survival. We show that SIC and southern annular mode (SAM), the principal mode of variability of the atmospheric circulation in the Southern Hemisphere, have strong nonlinear effects on juvenile survival and body condition. Below ca 20–30% SIC, body condition remained stable, but decreased almost linearly for higher SIC. Juvenile survival was negatively related to SIC and to SAM during the chick rearing period. We suggest that the base of the sea ice food web would be directly affected by sea ice conditions, thus acting locally on the abundance and structure of prey communities. Article in Journal/Newspaper Antarc* Antarctic Arctic Sea ice Snow Petrel Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Arctic Nivea ENVELOPE(-45.479,-45.479,-60.580,-60.580) The Antarctic Biology Letters 14 7 20180140 |
institution |
Open Polar |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Sauser, Christophe Delord, Karine Barbraud, Christophe Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Polar sea ice is changing rapidly, threatening many taxa in the Arctic and the Antarctic. Little is known about the effects of sea ice on early life-history traits of sea ice specialist species, although juvenile stages are a critical component of population dynamics and recruitment. We examined how annual variation in sea ice concentration (SIC) affects juvenile survival and body condition at fledging in the snow petrel Pagodroma nivea using long-term datasets encompassing 22 years for body condition and 37 years for juvenile survival. We show that SIC and southern annular mode (SAM), the principal mode of variability of the atmospheric circulation in the Southern Hemisphere, have strong nonlinear effects on juvenile survival and body condition. Below ca 20–30% SIC, body condition remained stable, but decreased almost linearly for higher SIC. Juvenile survival was negatively related to SIC and to SAM during the chick rearing period. We suggest that the base of the sea ice food web would be directly affected by sea ice conditions, thus acting locally on the abundance and structure of prey communities. |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
author_facet |
Sauser, Christophe Delord, Karine Barbraud, Christophe |
author_sort |
Sauser, Christophe |
title |
Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
title_short |
Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
title_full |
Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
title_fullStr |
Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
title_full_unstemmed |
Increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
title_sort |
increased sea ice concentration worsens fledging condition and juvenile survival in a pagophilic seabird, the snow petrel |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.archives-ouvertes.fr/hal-01848749 https://doi.org/10.1098/rsbl.2018.0140 |
long_lat |
ENVELOPE(-45.479,-45.479,-60.580,-60.580) |
geographic |
Antarctic Arctic Nivea The Antarctic |
geographic_facet |
Antarctic Arctic Nivea The Antarctic |
genre |
Antarc* Antarctic Arctic Sea ice Snow Petrel |
genre_facet |
Antarc* Antarctic Arctic Sea ice Snow Petrel |
op_source |
ISSN: 1744-9561 Biology Letters https://hal.archives-ouvertes.fr/hal-01848749 Biology Letters, Royal Society, The, 2018, 14 (7), ⟨10.1098/rsbl.2018.0140⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2018.0140 hal-01848749 https://hal.archives-ouvertes.fr/hal-01848749 doi:10.1098/rsbl.2018.0140 |
op_doi |
https://doi.org/10.1098/rsbl.2018.0140 |
container_title |
Biology Letters |
container_volume |
14 |
container_issue |
7 |
container_start_page |
20180140 |
_version_ |
1766258139314782208 |