Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/12472
Title: | Cooperative bird differentiates between the calls of different individuals, even when vocalizations were from completely unfamiliar individuals | Contributor(s): | McDonald, Paul (author) | Publication Date: | 2012 | Open Access: | Yes | DOI: | 10.1098/rsbl.2011.1118 | Handle Link: | https://hdl.handle.net/1959.11/12472 | Abstract: | Hypotheses proposed to explain the evolution of cooperative behaviour typically require differentiation between either groups of con specifics (e.g. kin/non-kin) or, more typically, individuals (e.g. 'reciprocal altruism'). Despite this, the mechanisms that facilitate individual or class recognition have rarely been explored in cooperative species. This study examines the individual differentiation abilities of noisy miners ('Manorina melanocephala'), a species with one of the most complex avian societies known. Miners permanently occupy colonies numbering into hundreds of individuals. Within these colonies, cooperative coalitions form on a fission–fusion basis across numerous contexts, from social foraging through to mobbing predators. Birds often use individually distinctive 'chur' calls to recruit others to a caller's location, facilitating coalition formation. I used the habituation-discrimination paradigm to test the ability of miners to differentiate between the 'chur' calls of two individuals that were both either: (i) familiar, or (ii) unfamiliar to the focal subject. This technique had not, to my knowledge, been used to assess vocalization differentiation in cooperative birds previously, but here demonstrated that miners could correctly use the spectral features of signals to differentiate between the vocalizations of different individuals, regardless of their familiarity. By attending to individual differences in recruitment calls, miners have a communication system that is capable of accommodating even the most complex cooperative hypotheses based upon acoustic information. | Publication Type: | Journal Article | Source of Publication: | Biology Letters, 8(3), p. 365-368 | Publisher: | The Royal Society Publishing | Place of Publication: | United Kingdom | ISSN: | 1744-957X 1744-9561 |
Fields of Research (FoR) 2008: | 060801 Animal Behaviour | Fields of Research (FoR) 2020: | 310901 Animal behaviour | Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Socio-Economic Objective (SEO) 2020: | 280102 Expanding knowledge in the biological sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article School of Environmental and Rural Science |
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