Journal of Comparative Physiology B

, 179:297

Size of ornament is negatively correlated with baseline corticosterone in males of a socially monogamous colonial seabird

Authors

    • Institute of Marine ScienceUniversity of Alaska Fairbanks
    • Biology Department, Kuskokwim Campus, CRCDUniversity of Alaska Fairbanks
  • Alexander S. Kitaysky
    • Institute of Arctic BiologyUniversity of Alaska Fairbanks
  • Evgenia V. Kitaiskaia
    • Institute of Arctic BiologyUniversity of Alaska Fairbanks
  • Aidan Maccormick
    • Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, Graham Kerr BuildingUniversity of Glasgow
  • Anke Kelly
    • Department of Animal PhysiologyUniversity of Bayreuth
    • Biology DepartmentBrandeis University
Original Paper

DOI: 10.1007/s00360-008-0312-6

Cite this article as:
Douglas, H.D., Kitaysky, A.S., Kitaiskaia, E.V. et al. J Comp Physiol B (2009) 179: 297. doi:10.1007/s00360-008-0312-6

Abstract

The Goymann–Wingfield model predicts that glucocorticoid levels in social animals reflect the costs of acquiring and maintaining social status. The crested auklet is one of the few avian colonial species where a mutual ornament in males and females is used in both sexual and aggressive displays. Previous studies of the crested auklet support the notion that the crest ornament is a badge of status in this species. Here, we examined the relationship between the crest ornament size and the adrenocortical function in breeding crested auklets. Crest length was negatively correlated with corticosterone at baseline in males, but not in females. Baseline corticosterone in females (but not in males) was negatively correlated with body condition index. Although male and female crested auklets are monomorphic in their ornamental traits, our results suggest that the socially mediated physiological costs associated with status signaling may differ between the sexes.

Keywords

CorticosteroneOrnamentPhysiological conditionBody conditionAllostasis

Copyright information

© Springer-Verlag 2008