Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses
Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature phase of wandering alba...
Published in: | Royal Society Open Science |
---|---|
Main Authors: | , , , |
Format: | Text |
Language: | English |
Published: |
The Royal Society Publishing
2017
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666281/ http://www.ncbi.nlm.nih.gov/pubmed/29134098 https://doi.org/10.1098/rsos.171039 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:5666281 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:5666281 2023-05-15T16:00:55+02:00 Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves 2017-10-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666281/ http://www.ncbi.nlm.nih.gov/pubmed/29134098 https://doi.org/10.1098/rsos.171039 en eng The Royal Society Publishing http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666281/ http://www.ncbi.nlm.nih.gov/pubmed/29134098 http://dx.doi.org/10.1098/rsos.171039 © 2017 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Biology (Whole Organism) Text 2017 ftpubmed https://doi.org/10.1098/rsos.171039 2017-11-19T01:09:15Z Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature phase of wandering albatrosses Diomedea exulans when they gradually change from a pure oceanic life to visits to their future breeding grounds. Immatures fed in subtropical waters at high trophic positions during moult. Between- and within-individual variations in isotopic niche were very high, irrespective of age, highlighting wide-ranging exploratory behaviours. In summer, while acting as central-place foragers from their future breeding colony, individuals progressively relied on lower trophic level prey and/or southern latitudes as they aged, until occupying a similar isotopic niche to that of adults. Immatures had exceptionally high Hg burdens, with males having lower Hg concentrations than females, suggesting that they foraged more in subantarctic waters. Our findings suggest a progressive ontogenetic niche shift during central-place foraging of this long-lived species. Text Diomedea exulans PubMed Central (PMC) Royal Society Open Science 4 10 171039 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Biology (Whole Organism) |
spellingShingle |
Biology (Whole Organism) Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
topic_facet |
Biology (Whole Organism) |
description |
Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (δ13C and δ15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature phase of wandering albatrosses Diomedea exulans when they gradually change from a pure oceanic life to visits to their future breeding grounds. Immatures fed in subtropical waters at high trophic positions during moult. Between- and within-individual variations in isotopic niche were very high, irrespective of age, highlighting wide-ranging exploratory behaviours. In summer, while acting as central-place foragers from their future breeding colony, individuals progressively relied on lower trophic level prey and/or southern latitudes as they aged, until occupying a similar isotopic niche to that of adults. Immatures had exceptionally high Hg burdens, with males having lower Hg concentrations than females, suggesting that they foraged more in subantarctic waters. Our findings suggest a progressive ontogenetic niche shift during central-place foraging of this long-lived species. |
format |
Text |
author |
Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves |
author_facet |
Carravieri, Alice Weimerskirch, Henri Bustamante, Paco Cherel, Yves |
author_sort |
Carravieri, Alice |
title |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_short |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_full |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_fullStr |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_full_unstemmed |
Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
title_sort |
progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses |
publisher |
The Royal Society Publishing |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666281/ http://www.ncbi.nlm.nih.gov/pubmed/29134098 https://doi.org/10.1098/rsos.171039 |
genre |
Diomedea exulans |
genre_facet |
Diomedea exulans |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666281/ http://www.ncbi.nlm.nih.gov/pubmed/29134098 http://dx.doi.org/10.1098/rsos.171039 |
op_rights |
© 2017 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.171039 |
container_title |
Royal Society Open Science |
container_volume |
4 |
container_issue |
10 |
container_start_page |
171039 |
_version_ |
1766396934533152768 |