Albatrosses respond adaptively to climate variability by changing variance in a foraging trait
© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. Albatrosses respond adaptively to climate variability by ch...
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Online Access: | https://hdl.handle.net/1912/27456 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/27456 2023-05-15T17:02:08+02:00 Albatrosses respond adaptively to climate variability by changing variance in a foraging trait Patrick, Samantha C. Martin, Julien G.A. Ummenhofer, Caroline C. Corbeau, Alexandre Weimerskirch, Henri 2021-06-05 https://hdl.handle.net/1912/27456 unknown Wiley https://doi.org/10.1111/gcb.15735 Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. (2021). Albatrosses respond adaptively to climate variability by changing variance in a foraging trait. Global Change Biology. https://hdl.handle.net/1912/27456 doi:10.1111/gcb.15735 Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ CC-BY Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. (2021). Albatrosses respond adaptively to climate variability by changing variance in a foraging trait. Global Change Biology. doi:10.1111/gcb.15735 Bet-hedging Intra-individual variability Resource acquisition Salt-water immersion logger Seabirds Southern Oscillation Index Article 2021 ftwhoas https://doi.org/10.1111/gcb.15735 2022-10-29T22:57:24Z © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. Albatrosses respond adaptively to climate variability by changing variance in a foraging trait. Global Change Biology, (2021), https://doi.org/10.1111/gcb.15735. The ability of individuals and populations to adapt to a changing climate is a key determinant of population dynamics. While changes in mean behaviour are well studied, changes in trait variance have been largely ignored, despite being assumed to be crucial for adapting to a changing environment. As the ability to acquire resources is essential to both reproduction and survival, changes in behaviours that maximize resource acquisition should be under selection. Here, using foraging trip duration data collected over 7 years on black-browed albatrosses (Thalassarche melanophris) on the Kerguelen Islands in the southern Indian Ocean, we examined the importance of changes in the mean and variance in foraging behaviour, and the associated effects on fitness, in response to the El Niño Southern Oscillation (ENSO). Using double hierarchical models, we found no evidence that individuals change their mean foraging trip duration in response to a changing environment, but found strong evidence of changes in variance. Younger birds showed greater variability in foraging trip duration in poor conditions as did birds with higher fitness. However, during brooding, birds showed greater variability in foraging behaviour under good conditions, suggesting that optimal conditions allow the alteration between chick provisioning and self-maintenance trips. We found weak correlations between sea surface temperature and the ENSO, but stronger links with sea-level pressure. We suggest that variability in behavioural traits affecting resource acquisition is under selection and offers a mechanism by which individuals can adapt to a changing ... Article in Journal/Newspaper Kerguelen Islands Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Indian Kerguelen Kerguelen Islands Global Change Biology 27 19 4564 4574 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
Bet-hedging Intra-individual variability Resource acquisition Salt-water immersion logger Seabirds Southern Oscillation Index |
spellingShingle |
Bet-hedging Intra-individual variability Resource acquisition Salt-water immersion logger Seabirds Southern Oscillation Index Patrick, Samantha C. Martin, Julien G.A. Ummenhofer, Caroline C. Corbeau, Alexandre Weimerskirch, Henri Albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
topic_facet |
Bet-hedging Intra-individual variability Resource acquisition Salt-water immersion logger Seabirds Southern Oscillation Index |
description |
© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. Albatrosses respond adaptively to climate variability by changing variance in a foraging trait. Global Change Biology, (2021), https://doi.org/10.1111/gcb.15735. The ability of individuals and populations to adapt to a changing climate is a key determinant of population dynamics. While changes in mean behaviour are well studied, changes in trait variance have been largely ignored, despite being assumed to be crucial for adapting to a changing environment. As the ability to acquire resources is essential to both reproduction and survival, changes in behaviours that maximize resource acquisition should be under selection. Here, using foraging trip duration data collected over 7 years on black-browed albatrosses (Thalassarche melanophris) on the Kerguelen Islands in the southern Indian Ocean, we examined the importance of changes in the mean and variance in foraging behaviour, and the associated effects on fitness, in response to the El Niño Southern Oscillation (ENSO). Using double hierarchical models, we found no evidence that individuals change their mean foraging trip duration in response to a changing environment, but found strong evidence of changes in variance. Younger birds showed greater variability in foraging trip duration in poor conditions as did birds with higher fitness. However, during brooding, birds showed greater variability in foraging behaviour under good conditions, suggesting that optimal conditions allow the alteration between chick provisioning and self-maintenance trips. We found weak correlations between sea surface temperature and the ENSO, but stronger links with sea-level pressure. We suggest that variability in behavioural traits affecting resource acquisition is under selection and offers a mechanism by which individuals can adapt to a changing ... |
format |
Article in Journal/Newspaper |
author |
Patrick, Samantha C. Martin, Julien G.A. Ummenhofer, Caroline C. Corbeau, Alexandre Weimerskirch, Henri |
author_facet |
Patrick, Samantha C. Martin, Julien G.A. Ummenhofer, Caroline C. Corbeau, Alexandre Weimerskirch, Henri |
author_sort |
Patrick, Samantha C. |
title |
Albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
title_short |
Albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
title_full |
Albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
title_fullStr |
Albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
title_full_unstemmed |
Albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
title_sort |
albatrosses respond adaptively to climate variability by changing variance in a foraging trait |
publisher |
Wiley |
publishDate |
2021 |
url |
https://hdl.handle.net/1912/27456 |
geographic |
Indian Kerguelen Kerguelen Islands |
geographic_facet |
Indian Kerguelen Kerguelen Islands |
genre |
Kerguelen Islands |
genre_facet |
Kerguelen Islands |
op_source |
Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. (2021). Albatrosses respond adaptively to climate variability by changing variance in a foraging trait. Global Change Biology. doi:10.1111/gcb.15735 |
op_relation |
https://doi.org/10.1111/gcb.15735 Patrick, S. C., Martin, J. G. A., Ummenhofer, C. C., Corbeau, A., & Weimerskirch, H. (2021). Albatrosses respond adaptively to climate variability by changing variance in a foraging trait. Global Change Biology. https://hdl.handle.net/1912/27456 doi:10.1111/gcb.15735 |
op_rights |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/gcb.15735 |
container_title |
Global Change Biology |
container_volume |
27 |
container_issue |
19 |
container_start_page |
4564 |
op_container_end_page |
4574 |
_version_ |
1766055382871965696 |