Document Detail

Call recognition in chicks of the Australian brush-turkey (Alectura lathami).
MedLine Citation:
PMID:  16160818     Owner:  NLM     Status:  MEDLINE    
Most birds rely on imprinting and experience with conspecifics to learn species-specific recognition cues. Australian brush-turkeys (Alectura lathami) do not imprint and form no bonds with parents. They hatch asynchronously, disperse widely and meet juvenile conspecifics at an unpredictable age. Nevertheless, in captivity, hatchlings respond to other chicks. A recent study, which involved the use of robotic models, found that chicks prefer to approach robots that emit specific visual cues. Here, we evaluated their response to acoustic cues, which usually play an important role in avian social cognition. However, in simultaneous choice tests, neither 2-day-old nor 9-day-old chicks preferred the choice arm with playback of either chick or adult conspecific calls over the arm containing a silent loudspeaker. Chicks of both age classes, however, scanned their surroundings more during chick playback, and the response was thus consistent in younger and older chicks. We also presented the chicks with robotic models, either with or without playback of chick calls. They did not approach the calling robot more than they did the silent robot, indicating that the combination of visual and acoustic cues does not evoke a stronger response. These results will allow further comparison with species that face similar cognitive demands in the wild, such as brood parasites. Such a comparative approach, which is the focus of cognitive ecology, will enable us to further analyse the evolution and adaptive value of species recognition abilities.
Katherine L Barry; Ann Göth
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-11-16
Journal Detail:
Title:  Animal cognition     Volume:  9     ISSN:  1435-9448     ISO Abbreviation:  Anim Cogn     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2005-11-24     Completed Date:  2006-06-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9814573     Medline TA:  Anim Cogn     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  47-54     Citation Subset:  IM    
Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia.
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MeSH Terms
Animal Communication*
Galliformes / physiology*
Social Behavior*
Species Specificity
Visual Perception

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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