Do naive juvenile seabirds forage differently from adults?
Foraging skills of young individuals are assumed to be inferior to those of adults. The reduced efficiency of naive individuals may be the primary cause of the high juvenile mortality and explain the deferment of maturity in long-lived species. However, the study of juvenile and immature foraging be...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Royal Society
2013
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1098/rspb.2013.1434 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2013.1434 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2013.1434 |
id |
crroyalsociety:10.1098/rspb.2013.1434 |
---|---|
record_format |
openpolar |
spelling |
crroyalsociety:10.1098/rspb.2013.1434 2024-06-02T08:05:46+00:00 Do naive juvenile seabirds forage differently from adults? Riotte-Lambert, Louise Weimerskirch, Henri 2013 http://dx.doi.org/10.1098/rspb.2013.1434 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2013.1434 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2013.1434 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 280, issue 1768, page 20131434 ISSN 0962-8452 1471-2954 journal-article 2013 crroyalsociety https://doi.org/10.1098/rspb.2013.1434 2024-05-07T14:16:36Z Foraging skills of young individuals are assumed to be inferior to those of adults. The reduced efficiency of naive individuals may be the primary cause of the high juvenile mortality and explain the deferment of maturity in long-lived species. However, the study of juvenile and immature foraging behaviour has been limited so far. We used satellite telemetry to compare the foraging movements of juveniles, immatures and breeding adult wandering albatrosses Diomedea exulans , a species where foraging success is positively influenced by the distance covered daily. We showed that juveniles are able to use favourable winds as soon as the first month of independence, but cover shorter distances daily and spend more time sitting on water than adults during the first two months after fledging. These reduced movement capacities do not seem to be the cause of higher juvenile mortality. Moreover, juveniles almost never restrict their movement to specific areas, as adults and immatures frequently do over shelf edges or oceanic zones, which suggest that the location of appropriate areas is learned through experience. Immatures and adults have equivalent movement capacities, but when they are central place foragers, i.e. when adults breed or immatures come to the colony to display and pair, immatures make shorter trips than adults. The long duration of immaturity in this species seems to be related to a long period of learning to integrate the foraging constraints associated with reproduction and central place foraging. Our results indicate that foraging behaviour of young albatrosses is partly innate and partly learned progressively over immaturity. The first months of learning appear critical in terms of survival, whereas the long period of immaturity is necessary for young birds to attain the skills necessary for efficient breeding without fitness costs. Article in Journal/Newspaper Diomedea exulans The Royal Society Proceedings of the Royal Society B: Biological Sciences 280 1768 20131434 |
institution |
Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
Foraging skills of young individuals are assumed to be inferior to those of adults. The reduced efficiency of naive individuals may be the primary cause of the high juvenile mortality and explain the deferment of maturity in long-lived species. However, the study of juvenile and immature foraging behaviour has been limited so far. We used satellite telemetry to compare the foraging movements of juveniles, immatures and breeding adult wandering albatrosses Diomedea exulans , a species where foraging success is positively influenced by the distance covered daily. We showed that juveniles are able to use favourable winds as soon as the first month of independence, but cover shorter distances daily and spend more time sitting on water than adults during the first two months after fledging. These reduced movement capacities do not seem to be the cause of higher juvenile mortality. Moreover, juveniles almost never restrict their movement to specific areas, as adults and immatures frequently do over shelf edges or oceanic zones, which suggest that the location of appropriate areas is learned through experience. Immatures and adults have equivalent movement capacities, but when they are central place foragers, i.e. when adults breed or immatures come to the colony to display and pair, immatures make shorter trips than adults. The long duration of immaturity in this species seems to be related to a long period of learning to integrate the foraging constraints associated with reproduction and central place foraging. Our results indicate that foraging behaviour of young albatrosses is partly innate and partly learned progressively over immaturity. The first months of learning appear critical in terms of survival, whereas the long period of immaturity is necessary for young birds to attain the skills necessary for efficient breeding without fitness costs. |
format |
Article in Journal/Newspaper |
author |
Riotte-Lambert, Louise Weimerskirch, Henri |
spellingShingle |
Riotte-Lambert, Louise Weimerskirch, Henri Do naive juvenile seabirds forage differently from adults? |
author_facet |
Riotte-Lambert, Louise Weimerskirch, Henri |
author_sort |
Riotte-Lambert, Louise |
title |
Do naive juvenile seabirds forage differently from adults? |
title_short |
Do naive juvenile seabirds forage differently from adults? |
title_full |
Do naive juvenile seabirds forage differently from adults? |
title_fullStr |
Do naive juvenile seabirds forage differently from adults? |
title_full_unstemmed |
Do naive juvenile seabirds forage differently from adults? |
title_sort |
do naive juvenile seabirds forage differently from adults? |
publisher |
The Royal Society |
publishDate |
2013 |
url |
http://dx.doi.org/10.1098/rspb.2013.1434 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2013.1434 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2013.1434 |
genre |
Diomedea exulans |
genre_facet |
Diomedea exulans |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 280, issue 1768, page 20131434 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2013.1434 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
280 |
container_issue |
1768 |
container_start_page |
20131434 |
_version_ |
1800750640963518464 |