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Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris
Recent studies have reported beneficial carryover effects of juvenile development that predict interspecific survival differences at independence. Yet, traits relating to body size (i.e. morphological traits) have proven to be unreliable predictors of juvenile survival within species. Exploring indi...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9174708/ https://www.ncbi.nlm.nih.gov/pubmed/35706664 http://dx.doi.org/10.1098/rsos.220583 |
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author | Allen, Joshua M. Hodinka, Brett L. Hall, Hannah M. Leonard, Kathryn M. Williams, Tony D. |
author_facet | Allen, Joshua M. Hodinka, Brett L. Hall, Hannah M. Leonard, Kathryn M. Williams, Tony D. |
author_sort | Allen, Joshua M. |
collection | PubMed |
description | Recent studies have reported beneficial carryover effects of juvenile development that predict interspecific survival differences at independence. Yet, traits relating to body size (i.e. morphological traits) have proven to be unreliable predictors of juvenile survival within species. Exploring individual variation of growth trajectories and how they covary with physiology could reveal species-specific developmental modes which have implications for our assessments of juvenile quality. Here, we investigated morphological development of European starlings (Sturnus vulgaris) approaching fledging in relation to three components of physiological condition at independence: aerobic capacity, energy state and oxidative status. We found evidence of flexible mass and wing growth which independently covaried with fledgling energy state and aerobic capacity, respectively. By comparison, tarsus and wing length at fledging were unrelated to any physiological trait, while mass was positively associated with principal component scores that comprised aerobic capacity and energy state. Thus, flexible growth trajectories were consistent with ‘developmental plasticity’: adaptive pre-fledging mass recession and compensatory wing growth, which seemingly came at a physiological cost, while fledgling body mass positively reflected overall physiological condition. This highlights how patterns of growth and absolute size may differently reflect fledgling physiology, potentially leading to variable relationships between morphological traits and juvenile fitness. |
format | Online Article Text |
id | pubmed-9174708 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-91747082022-06-14 Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris Allen, Joshua M. Hodinka, Brett L. Hall, Hannah M. Leonard, Kathryn M. Williams, Tony D. R Soc Open Sci Organismal and Evolutionary Biology Recent studies have reported beneficial carryover effects of juvenile development that predict interspecific survival differences at independence. Yet, traits relating to body size (i.e. morphological traits) have proven to be unreliable predictors of juvenile survival within species. Exploring individual variation of growth trajectories and how they covary with physiology could reveal species-specific developmental modes which have implications for our assessments of juvenile quality. Here, we investigated morphological development of European starlings (Sturnus vulgaris) approaching fledging in relation to three components of physiological condition at independence: aerobic capacity, energy state and oxidative status. We found evidence of flexible mass and wing growth which independently covaried with fledgling energy state and aerobic capacity, respectively. By comparison, tarsus and wing length at fledging were unrelated to any physiological trait, while mass was positively associated with principal component scores that comprised aerobic capacity and energy state. Thus, flexible growth trajectories were consistent with ‘developmental plasticity’: adaptive pre-fledging mass recession and compensatory wing growth, which seemingly came at a physiological cost, while fledgling body mass positively reflected overall physiological condition. This highlights how patterns of growth and absolute size may differently reflect fledgling physiology, potentially leading to variable relationships between morphological traits and juvenile fitness. The Royal Society 2022-06-08 /pmc/articles/PMC9174708/ /pubmed/35706664 http://dx.doi.org/10.1098/rsos.220583 Text en © 2022 The Authors. https://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/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Organismal and Evolutionary Biology Allen, Joshua M. Hodinka, Brett L. Hall, Hannah M. Leonard, Kathryn M. Williams, Tony D. Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris |
title | Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris |
title_full | Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris |
title_fullStr | Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris |
title_full_unstemmed | Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris |
title_short | Flexible growth and body mass predict physiological condition at fledging in the synchronously breeding European starling, Sturnus vulgaris |
title_sort | flexible growth and body mass predict physiological condition at fledging in the synchronously breeding european starling, sturnus vulgaris |
topic | Organismal and Evolutionary Biology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9174708/ https://www.ncbi.nlm.nih.gov/pubmed/35706664 http://dx.doi.org/10.1098/rsos.220583 |
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