State dependence explains individual variation in nest defence behaviour in a long‐lived bird
1. Parental care, such as nest or offspring defence, is crucial for offspring survival in many species. Yet, despite its obvious fitness benefits, the level of defence can consistently vary between individuals of the same species. One prominent adaptive explanation for consistent individual differen...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048547/ http://www.ncbi.nlm.nih.gov/pubmed/33340107 https://doi.org/10.1111/1365-2656.13411 |
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ftpubmed:oai:pubmedcentral.nih.gov:8048547 2023-05-15T15:39:24+02:00 State dependence explains individual variation in nest defence behaviour in a long‐lived bird de Jong, Margje E. Nicolaus, Marion Fokkema, Rienk W. Loonen, Maarten J. J. E. 2021-01-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048547/ http://www.ncbi.nlm.nih.gov/pubmed/33340107 https://doi.org/10.1111/1365-2656.13411 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048547/ http://www.ncbi.nlm.nih.gov/pubmed/33340107 http://dx.doi.org/10.1111/1365-2656.13411 © 2020 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY J Anim Ecol Research Articles Text 2021 ftpubmed https://doi.org/10.1111/1365-2656.13411 2021-04-25T00:27:56Z 1. Parental care, such as nest or offspring defence, is crucial for offspring survival in many species. Yet, despite its obvious fitness benefits, the level of defence can consistently vary between individuals of the same species. One prominent adaptive explanation for consistent individual differences in behaviours involves state dependency: relatively stable differences in individual state should lead to the emergence of repeatable behavioural variation whereas changes in state should lead to a readjustment of behaviour. Therefore, empirical testing of adaptive state dependence requires longitudinal data where behaviour and state of individuals of the same population are repeatedly measured. 2. Here, we test if variation in states predicts nest defence behaviour (a ‘risky’ behaviour) in a long‐lived species, the barnacle goose Branta leucopsis. Adaptive models have predicted that an individual's residual reproductive value or ‘asset’ is an important state variable underlying variation in risk‐taking behaviour. Hence, we investigate how nest defence varies as a function of time of the season and individual age, two state variables that can vary between and within individuals and determine asset. 3. Repeated measures of nest defence towards a human intruder (flight initiation distance or FID) of females of known age were collected during 15 breeding seasons. Increasing values of FID represent increasing shyness. 4. We found that females strongly and consistently differed in FID within‐ and between‐years. As predicted by theory, females adjusted their behaviour to state by decreasing their FID with season and age. Decomposing these population patterns into within‐ and between‐individual effects showed that the state‐dependent change in FID was driven by individual plasticity in FID and that bolder females were more plastic than shyer females. 5. This study shows that nest defence behaviour differs consistently among individuals and is adjusted to individual state in a direction predicted by adaptive personality ... Text Barnacle goose Branta leucopsis PubMed Central (PMC) Fid ENVELOPE(-65.939,-65.939,-68.664,-68.664) Journal of Animal Ecology 90 4 809 819 |
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Research Articles |
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Research Articles de Jong, Margje E. Nicolaus, Marion Fokkema, Rienk W. Loonen, Maarten J. J. E. State dependence explains individual variation in nest defence behaviour in a long‐lived bird |
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Research Articles |
description |
1. Parental care, such as nest or offspring defence, is crucial for offspring survival in many species. Yet, despite its obvious fitness benefits, the level of defence can consistently vary between individuals of the same species. One prominent adaptive explanation for consistent individual differences in behaviours involves state dependency: relatively stable differences in individual state should lead to the emergence of repeatable behavioural variation whereas changes in state should lead to a readjustment of behaviour. Therefore, empirical testing of adaptive state dependence requires longitudinal data where behaviour and state of individuals of the same population are repeatedly measured. 2. Here, we test if variation in states predicts nest defence behaviour (a ‘risky’ behaviour) in a long‐lived species, the barnacle goose Branta leucopsis. Adaptive models have predicted that an individual's residual reproductive value or ‘asset’ is an important state variable underlying variation in risk‐taking behaviour. Hence, we investigate how nest defence varies as a function of time of the season and individual age, two state variables that can vary between and within individuals and determine asset. 3. Repeated measures of nest defence towards a human intruder (flight initiation distance or FID) of females of known age were collected during 15 breeding seasons. Increasing values of FID represent increasing shyness. 4. We found that females strongly and consistently differed in FID within‐ and between‐years. As predicted by theory, females adjusted their behaviour to state by decreasing their FID with season and age. Decomposing these population patterns into within‐ and between‐individual effects showed that the state‐dependent change in FID was driven by individual plasticity in FID and that bolder females were more plastic than shyer females. 5. This study shows that nest defence behaviour differs consistently among individuals and is adjusted to individual state in a direction predicted by adaptive personality ... |
format |
Text |
author |
de Jong, Margje E. Nicolaus, Marion Fokkema, Rienk W. Loonen, Maarten J. J. E. |
author_facet |
de Jong, Margje E. Nicolaus, Marion Fokkema, Rienk W. Loonen, Maarten J. J. E. |
author_sort |
de Jong, Margje E. |
title |
State dependence explains individual variation in nest defence behaviour in a long‐lived bird |
title_short |
State dependence explains individual variation in nest defence behaviour in a long‐lived bird |
title_full |
State dependence explains individual variation in nest defence behaviour in a long‐lived bird |
title_fullStr |
State dependence explains individual variation in nest defence behaviour in a long‐lived bird |
title_full_unstemmed |
State dependence explains individual variation in nest defence behaviour in a long‐lived bird |
title_sort |
state dependence explains individual variation in nest defence behaviour in a long‐lived bird |
publisher |
John Wiley and Sons Inc. |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048547/ http://www.ncbi.nlm.nih.gov/pubmed/33340107 https://doi.org/10.1111/1365-2656.13411 |
long_lat |
ENVELOPE(-65.939,-65.939,-68.664,-68.664) |
geographic |
Fid |
geographic_facet |
Fid |
genre |
Barnacle goose Branta leucopsis |
genre_facet |
Barnacle goose Branta leucopsis |
op_source |
J Anim Ecol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8048547/ http://www.ncbi.nlm.nih.gov/pubmed/33340107 http://dx.doi.org/10.1111/1365-2656.13411 |
op_rights |
© 2020 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1111/1365-2656.13411 |
container_title |
Journal of Animal Ecology |
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90 |
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4 |
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809 |
op_container_end_page |
819 |
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1766371086896726016 |