Behav Ecol Sociobiol (2017) 71:109 DOI 10.1007/s00265-017-2342-0 ORIGINAL ARTICLE Responsiveness to siblings’ need increases with age in vocally negotiating barn owl nestlings 1 1 1 2 Amélie N. Dreiss & Charlène A. Ruppli & Alice Delarbre & Christof Faller & Alexandre Roulin Received: 9 March 2017 /Revised: 22 June 2017 /Accepted: 23 June 2017 Springer-Verlag GmbH Germany 2017 Abstract level so that they can optimally invest in sibling competition, In animal societies, individuals should optimize the way they with the most vocal, and hence hungry, nestling momentarily behave in relation to the behavior displayed by their conspe- deterring its siblings from competing. This process implies cifics. This social competence, i.e., the ability to adjust behav- that siblings have the ability to adjust their behavior in relation ior to the social context, can vary between individuals, but also to the behavior of their siblings, a process that could change improve with age and experience. This aspect, although im- with age. In a series of experiments, we examined how nes- portant, has rarely been studied. We tested whether the ability tlings of different ages respond to the vocal behavior of sib- to adjust behavior to siblings develops with age in barn
Behavioral Ecology and Sociobiology – Springer Journals
Published: Jul 5, 2017
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