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Contrasting multilevel relationships between behavior and body mass in blue tit nestlings
Repeatable behaviors (i.e., animal personality) are pervasive in the animal kingdom and various mechanisms have been proposed to …
Barbara Class, Jon Brommer
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Contrasting multilevel relationships between behavior and body mass in blue tit nestlings
Exploratory behavior undergoes genotype–age interactions in a wild bird
Animal personality traits are often heritable and plastic at the same time. Indeed, behaviors that reflect an individual’s …
Barbara Class, Jon Brommer, Kees van Oers
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Exploratory behavior undergoes genotype–age interactions in a wild bird
Tail colour signals performance in blue tit nestlings
Indirect sexual selection arises when reproductive individuals choose their mates based on heritable ornaments that are genetically …
Barbara Class, Edward Kluen, Jon Brommer
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Tail colour signals performance in blue tit nestlings
Shared environmental effects bias phenotypic estimates of assortative mating in a wild bird
Assortative mating is pervasive in wild populations and commonly described as a positive correlation between the phenotypes of males …
Barbara Class, Jon Brommer
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Shared environmental effects bias phenotypic estimates of assortative mating in a wild bird
A statistical methodology for estimating assortative mating for phenotypic traits that are labile or measured with error
Assortative mating in wild populations is commonly reported as the correlation between males’ and females’ phenotypes across mated …
Barbara Class, Niels Dingemanse, Yimen Araya-Ajoy, Jon Brommer
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Phenotypic correlations capture between-individual correlations underlying behavioral syndromes
The presence of variation in behavior on the between-individual level is considered the hallmark of personality. In contrast, …
Jon Brommer, Barbara Class
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Phenotypic correlations capture between-individual correlations underlying behavioral syndromes
Senescence of personality in a wild bird
Despite a growing body of literature reporting developmental changes in personality, few studies have adopted a lifetime perspective to …
Barbara Class, Jon Brommer
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The importance of genotype-by-age interactions for the development of repeatable behavior and correlated behaviors over lifetime
Behaviors are highly plastic and one aspect of this plasticity is behavioral changes over age. The presence of age-related plasticity …
Jon Brommer, Barbara Class
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A strong genetic correlation underlying a behavioural syndrome disappears during development because of genotype-age interactions
In animal populations, as in humans, behavioural differences between individuals that are consistent over time and across contexts are …
Barbara Class, Jon Brommer
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Evolutionary quantitative genetics of behavioral responses to handling in a wild passerine
Behavioral differences between individuals that are consistent over time characterize animal personality. The existence of such …
Barbara Class, Edward Kluen, Jon Brommer
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