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The ontogeny of personality traits in the redjunglefowl, Gallus gallus
Department of Zoology, Stockholm University, Stockholm, Sweden.
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biology. Linköping University, Faculty of Science & Engineering. (Etologi)
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2016 (English)In: Behavioral Ecology, ISSN 1045-2249, E-ISSN 1465-7279, Vol. 27, no 2, 484-493 p.Article in journal (Refereed) Published
Abstract [en]

Consistent behavioral differences among individuals, that is, personality, are described in numerous species. Nevertheless, thedevelopment of behavioral consistency over ontogeny remains unclear, including whether the personality of individuals is consistentthroughout life, and if adult personality can be predicted already at young age. We investigated the ontogeny of personality in thered junglefowl (Gallus gallus) by scoring personality of hatchlings at 5 time points through adulthood, including before and after themajor developmental stages of becoming independent and sexual mature. We use the conceptual framework laid out by Stamps andGroothuis (2010a) to holistically investigate the observed changes in behavioral response over ontogeny. We demonstrate that meanvalues of behavioral responses changed across ontogeny and stabilized after independence. Rank-order consistencies of behavioralresponses were overall low across independence and sexual maturation. Only in 1 case could low rank-order consistencies potentiallybe explained by different phenotypes displaying different amounts of change in behavior; more explorative individuals decreased inexploration after independence, while less explorative individuals remained so. Correlations among behavior varied across ontogenyand weakened after sexual maturation. Our results demonstrate that both absolute values and consistency of behavioral traits maychange across ontogeny and that individual developmental trajectories and adult personality only to some extent can be predictedearly in life. These results have implications for future studies on personality, highlighting that the life stage at which individuals arescored affects the observed consistency of behavioral responses.

Place, publisher, year, edition, pages
Oxford University Press, 2016. Vol. 27, no 2, 484-493 p.
Keyword [en]
behavioral consistency, behavioral syndromes, chicken, development, developmental plasticity
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:liu:diva-123298DOI: 10.1093/beheco/arv177ISI: 000375398800020OAI: oai:DiVA.org:liu-123298DiVA: diva2:881221
Note

Funding agencies: Royal Swedish Academy of Science; Lars Hiertas memorial fund; Linkoping University; Swedish Research Council; Swedish Research Council Formas; European Research Council [ERC 322206]

Available from: 2015-12-10 Created: 2015-12-10 Last updated: 2016-05-31

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Zidar, JosefinaJensen, PerLovlie, Hanne
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