Document Detail


Condition dependence of nestling mouth colour and the effect of supplementing carotenoids on parental behaviour in the hihi (Notiomystis cincta).
MedLine Citation:
PMID:  18546021     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Carotenoids are integument pigments that often reflect foraging efficiency, disease resistance and body condition. In contrast to the widespread attention this relationship has received in adult birds, the condition dependence of nestling colouration remains an understudied component of animal communication. Here we assess the condition dependence of carotenoid pigmentation in nestling hihi (Notiomystis cincta, an endangered New Zealand bird) and examine the influence of carotenoid supplementation on nestling quality and parental visitation rates. Our results show that carotenoids provided to breeding adult hihi were transferred to their offspring and resulted in an intensified orange-yellow flange colour. After accounting for carotenoid supplementation the parameter that most consistently explained variation in nestling flange colour was nestling tarsus length at 23 days, indicating condition dependence of this trait. We did not, however, detect direct effects of carotenoid supplementation on nestling mass or immune response (or any other fitness parameter measured). Carotenoid supplementation did, however, result in an increased paternal provisioning rate.
Authors:
John G Ewen; Rose Thorogood; Filiz Karadas; Phillip Cassey
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-06-11
Journal Detail:
Title:  Oecologia     Volume:  157     ISSN:  0029-8549     ISO Abbreviation:  Oecologia     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-28     Completed Date:  2008-10-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0150372     Medline TA:  Oecologia     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  361-8     Citation Subset:  IM    
Affiliation:
Institute of Zoology, Zoological Society of London, Regents Park, London, UK. john.ewen@ioz.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animal Communication
Animals
Carotenoids / blood*
Cell Proliferation
Color*
Female
Immunity, Cellular
Male
Mouth / anatomy & histology
Nesting Behavior*
Passeriformes / anatomy & histology,  immunology,  physiology*
Pigmentation
Sex Characteristics
T-Lymphocytes / immunology
Chemical
Reg. No./Substance:
36-88-4/Carotenoids

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


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