Personality traits and behavioral syndromes in differently urbanized populations of house sparrows (Passer domesticus).

PloS One
Veronika BókonyA Liker

Abstract

Urbanization creates novel environments for wild animals where selection pressures may differ drastically from those in natural habitats. Adaptation to urban life involves changes in various traits, including behavior. Behavioral traits often vary consistently among individuals, and these so-called personality traits can be correlated with each other, forming behavioral syndromes. Despite their adaptive significance and potential to act as constraints, little is known about the role of animal personality and behavioral syndromes in animals' adaptation to urban habitats. In this study we tested whether differently urbanized habitats select for different personalities and behavioral syndromes by altering the population mean, inter-individual variability, and correlations of personality traits. We captured house sparrows (Passer domesticus) from four different populations along the gradient of urbanization and assessed their behavior in standardized test situations. We found individual consistency in neophobia, risk taking, and activity, constituting three personality axes. On the one hand, urbanization did not consistently affect the mean and variance of these traits, although there were significant differences between some of th...Continue Reading

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Citations

Dec 4, 2015·Animals : an Open Access Journal From MDPI·Aline BertinLudovic Calandreau
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Jun 29, 2021·Behavioral Ecology and Sociobiology·Alina SchafferFederica Amici

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