Early diving behaviour in juvenile penguins: improvement or selection processes
The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behaviour of 17 one-year-old...
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crroyalsociety:10.1098/rsbl.2016.0490 2024-06-02T08:05:39+00:00 Early diving behaviour in juvenile penguins: improvement or selection processes Orgeret, Florian Weimerskirch, Henri Bost, Charles-André European Community's Seven Framework 2016 http://dx.doi.org/10.1098/rsbl.2016.0490 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2016.0490 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2016.0490 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Biology Letters volume 12, issue 8, page 20160490 ISSN 1744-9561 1744-957X journal-article 2016 crroyalsociety https://doi.org/10.1098/rsbl.2016.0490 2024-05-07T14:16:13Z The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behaviour of 17 one-year-old king penguins Aptenodytes patagonicus at Crozet Islands (subantartic archipelago) during their first months at sea, using miniaturized tags that transmitted diving activity in real time. We also equipped five non-breeder adults with the same tags for comparison. The data on foraging performance revealed two groups of juveniles. The first group made shallower and shorter dives that may be indicative of early mortality while the second group progressively increased their diving depths and durations, and survived the first months at sea. This surviving group of juveniles required the same recovery durations as adults, but typically performed shallower and shorter dives. There is thereby a relationship between improved diving behaviour and survival in young penguins. This long period of improving diving performance in the juvenile life stage is potentially a critical period for the survival of deep avian divers and may have implications for their ability to adapt to environmental change. Article in Journal/Newspaper Crozet Islands King Penguins The Royal Society Old King ENVELOPE(-55.731,-55.731,53.133,53.133) Biology Letters 12 8 20160490 |
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Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
The early life stage of long-lived species is critical to the viability of population, but is poorly understood. Longitudinal studies are needed to test whether juveniles are less efficient foragers than adults as has been hypothesized. We measured changes in the diving behaviour of 17 one-year-old king penguins Aptenodytes patagonicus at Crozet Islands (subantartic archipelago) during their first months at sea, using miniaturized tags that transmitted diving activity in real time. We also equipped five non-breeder adults with the same tags for comparison. The data on foraging performance revealed two groups of juveniles. The first group made shallower and shorter dives that may be indicative of early mortality while the second group progressively increased their diving depths and durations, and survived the first months at sea. This surviving group of juveniles required the same recovery durations as adults, but typically performed shallower and shorter dives. There is thereby a relationship between improved diving behaviour and survival in young penguins. This long period of improving diving performance in the juvenile life stage is potentially a critical period for the survival of deep avian divers and may have implications for their ability to adapt to environmental change. |
author2 |
European Community's Seven Framework |
format |
Article in Journal/Newspaper |
author |
Orgeret, Florian Weimerskirch, Henri Bost, Charles-André |
spellingShingle |
Orgeret, Florian Weimerskirch, Henri Bost, Charles-André Early diving behaviour in juvenile penguins: improvement or selection processes |
author_facet |
Orgeret, Florian Weimerskirch, Henri Bost, Charles-André |
author_sort |
Orgeret, Florian |
title |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_short |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_full |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_fullStr |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_full_unstemmed |
Early diving behaviour in juvenile penguins: improvement or selection processes |
title_sort |
early diving behaviour in juvenile penguins: improvement or selection processes |
publisher |
The Royal Society |
publishDate |
2016 |
url |
http://dx.doi.org/10.1098/rsbl.2016.0490 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2016.0490 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2016.0490 |
long_lat |
ENVELOPE(-55.731,-55.731,53.133,53.133) |
geographic |
Old King |
geographic_facet |
Old King |
genre |
Crozet Islands King Penguins |
genre_facet |
Crozet Islands King Penguins |
op_source |
Biology Letters volume 12, issue 8, page 20160490 ISSN 1744-9561 1744-957X |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsbl.2016.0490 |
container_title |
Biology Letters |
container_volume |
12 |
container_issue |
8 |
container_start_page |
20160490 |
_version_ |
1800750517236793344 |