Does personality mediate the reproductive consequences of broad-scale climate phenomena?
Abstract: 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 envir...
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ftdatacite:10.48448/kbqh-0t73 2023-05-15T17:02:07+02:00 Does personality mediate the reproductive consequences of broad-scale climate phenomena? 3rd World Seabird Conference 2021 Patrick, Samantha 2021 https://dx.doi.org/10.48448/kbqh-0t73 https://underline.io/lecture/34656-does-personality-mediate-the-reproductive-consequences-of-broad-scale-climate-phenomenaquestion unknown Underline Science Inc. Animal Science Veterinary Genetics Ornithology MediaObject article Conference talk Audiovisual 2021 ftdatacite https://doi.org/10.48448/kbqh-0t73 2022-02-09T11:22:26Z Abstract: 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 climate. Studies which look only at effects on mean behaviour may underestimate the effects of climate change and fail to consider variance in traits as a key evolutionary force. Authors: Samantha Patrick¹, Julien Martin², Caroline Ummenhofer³, Alexandre Corbeau⁴, Henri Weimerskirch⁴ ¹University of Liverpool, ²University of Ottawa, ³WHOI, ⁴CEBC-CNRS Article in Journal/Newspaper Kerguelen Islands DataCite Metadata Store (German National Library of Science and Technology) Indian Kerguelen Kerguelen Islands |
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Animal Science Veterinary Genetics Ornithology |
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Animal Science Veterinary Genetics Ornithology 3rd World Seabird Conference 2021 Patrick, Samantha Does personality mediate the reproductive consequences of broad-scale climate phenomena? |
topic_facet |
Animal Science Veterinary Genetics Ornithology |
description |
Abstract: 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 climate. Studies which look only at effects on mean behaviour may underestimate the effects of climate change and fail to consider variance in traits as a key evolutionary force. Authors: Samantha Patrick¹, Julien Martin², Caroline Ummenhofer³, Alexandre Corbeau⁴, Henri Weimerskirch⁴ ¹University of Liverpool, ²University of Ottawa, ³WHOI, ⁴CEBC-CNRS |
format |
Article in Journal/Newspaper |
author |
3rd World Seabird Conference 2021 Patrick, Samantha |
author_facet |
3rd World Seabird Conference 2021 Patrick, Samantha |
author_sort |
3rd World Seabird Conference 2021 |
title |
Does personality mediate the reproductive consequences of broad-scale climate phenomena? |
title_short |
Does personality mediate the reproductive consequences of broad-scale climate phenomena? |
title_full |
Does personality mediate the reproductive consequences of broad-scale climate phenomena? |
title_fullStr |
Does personality mediate the reproductive consequences of broad-scale climate phenomena? |
title_full_unstemmed |
Does personality mediate the reproductive consequences of broad-scale climate phenomena? |
title_sort |
does personality mediate the reproductive consequences of broad-scale climate phenomena? |
publisher |
Underline Science Inc. |
publishDate |
2021 |
url |
https://dx.doi.org/10.48448/kbqh-0t73 https://underline.io/lecture/34656-does-personality-mediate-the-reproductive-consequences-of-broad-scale-climate-phenomenaquestion |
geographic |
Indian Kerguelen Kerguelen Islands |
geographic_facet |
Indian Kerguelen Kerguelen Islands |
genre |
Kerguelen Islands |
genre_facet |
Kerguelen Islands |
op_doi |
https://doi.org/10.48448/kbqh-0t73 |
_version_ |
1766055365588287488 |