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Environmental heterogeneity and population differences in blue tits personality traits

Environmental heterogeneity can result in spatial variation in selection pressures that can produce local adaptations. The pace-of-life syndrome hypothesis predicts that habitat-specific selective pressures will favor the coevolution of personality, physiological, and life-history phenotypes. Few st...

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Autores principales: Dubuc-Messier, Gabrielle, Réale, Denis, Perret, Philippe, Charmantier, Anne
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5873839/
https://www.ncbi.nlm.nih.gov/pubmed/29622919
http://dx.doi.org/10.1093/beheco/arw148
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author Dubuc-Messier, Gabrielle
Réale, Denis
Perret, Philippe
Charmantier, Anne
author_facet Dubuc-Messier, Gabrielle
Réale, Denis
Perret, Philippe
Charmantier, Anne
author_sort Dubuc-Messier, Gabrielle
collection PubMed
description Environmental heterogeneity can result in spatial variation in selection pressures that can produce local adaptations. The pace-of-life syndrome hypothesis predicts that habitat-specific selective pressures will favor the coevolution of personality, physiological, and life-history phenotypes. Few studies so far have compared these traits simultaneously across different ecological conditions. In this study, we compared 3 personality traits (handling aggression, exploration speed in a novel environment, and nest defense behavior) and 1 physiological trait (heart rate during manual restraint) across 3 Corsican blue tit (Cyanistes caeruleus) populations. These populations are located in contrasting habitats (evergreen vs. deciduous) and are situated in 2 different valleys 25 km apart. Birds from these populations are known to differ in life-history characteristics, with birds from the evergreen habitat displaying a slow pace-of-life, and birds from the deciduous habitat a comparatively faster pace-of-life. We expected personality to differ across populations, in line with the differences in pace-of-life documented for life-history traits. As expected, we found behavioral differences among populations. Despite considerable temporal variation, birds exhibited lower handling aggression in the evergreen populations. Exploration speed and male heart rate also differed across populations, although our results for exploration speed were more consistent with a phenotypic difference between the 2 valleys than between habitats. There were no clear differences in nest defense intensity among populations. Our study emphasizes the role of environmental heterogeneity in shaping population divergence in personality traits at a small spatial scale.
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spelling pubmed-58738392018-04-05 Environmental heterogeneity and population differences in blue tits personality traits Dubuc-Messier, Gabrielle Réale, Denis Perret, Philippe Charmantier, Anne Behav Ecol Original Article Environmental heterogeneity can result in spatial variation in selection pressures that can produce local adaptations. The pace-of-life syndrome hypothesis predicts that habitat-specific selective pressures will favor the coevolution of personality, physiological, and life-history phenotypes. Few studies so far have compared these traits simultaneously across different ecological conditions. In this study, we compared 3 personality traits (handling aggression, exploration speed in a novel environment, and nest defense behavior) and 1 physiological trait (heart rate during manual restraint) across 3 Corsican blue tit (Cyanistes caeruleus) populations. These populations are located in contrasting habitats (evergreen vs. deciduous) and are situated in 2 different valleys 25 km apart. Birds from these populations are known to differ in life-history characteristics, with birds from the evergreen habitat displaying a slow pace-of-life, and birds from the deciduous habitat a comparatively faster pace-of-life. We expected personality to differ across populations, in line with the differences in pace-of-life documented for life-history traits. As expected, we found behavioral differences among populations. Despite considerable temporal variation, birds exhibited lower handling aggression in the evergreen populations. Exploration speed and male heart rate also differed across populations, although our results for exploration speed were more consistent with a phenotypic difference between the 2 valleys than between habitats. There were no clear differences in nest defense intensity among populations. Our study emphasizes the role of environmental heterogeneity in shaping population divergence in personality traits at a small spatial scale. Oxford University Press 2017 2016-12-20 /pmc/articles/PMC5873839/ /pubmed/29622919 http://dx.doi.org/10.1093/beheco/arw148 Text en © The Author 2016. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. http://creativecommons.org/licenses/by/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Dubuc-Messier, Gabrielle
Réale, Denis
Perret, Philippe
Charmantier, Anne
Environmental heterogeneity and population differences in blue tits personality traits
title Environmental heterogeneity and population differences in blue tits personality traits
title_full Environmental heterogeneity and population differences in blue tits personality traits
title_fullStr Environmental heterogeneity and population differences in blue tits personality traits
title_full_unstemmed Environmental heterogeneity and population differences in blue tits personality traits
title_short Environmental heterogeneity and population differences in blue tits personality traits
title_sort environmental heterogeneity and population differences in blue tits personality traits
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5873839/
https://www.ncbi.nlm.nih.gov/pubmed/29622919
http://dx.doi.org/10.1093/beheco/arw148
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