A label of health: a previous immune challenge is reflected in the expression of a female plumage trait.
Author
Summary, in English
Studies of ornaments as indicators of individual quality have hitherto focused on males, while studies of female ornaments have been almost absent. However, females within the same species may show large variation in both outer appearance and individual quality. We experimentally examined the effect of an immune challenge on the size of white fringes in the wing feathers produced one to two months after the challenge in female common eiders (Somateria mollissima), a long-lived sea duck. Immune-challenged females produced feathers with smaller white fringes, showing that a previous immune challenge may affect the expression of a plumage trait. We also report an unexpected difference in the expression of this white plumage trait within the immune-challenged group, related to the specific immune response against one of the injected antigens.
Department/s
Publishing year
2008
Language
English
Pages
379-381
Publication/Series
Biology letters
Volume
4
Issue
4
Document type
Journal article
Publisher
Royal Society Publishing
Topic
- Biological Sciences
Keywords
- female ornament
- diphtheria
- tetanus
- immune challenge
Status
Published
Research group
- Molecular Ecology and Evolution Lab
ISBN/ISSN/Other
- ISSN: 1744-9561