Response of testosterone and corticosterone plasma levels to the challenge of sibling competition: A study in common terns

Highlights • We investigated the response of T and CORT to food competition in common tern chicks. • In siblings T was lower after intense food competition as compared to controls. • CORT was higher in siblings than in singletons, and higher in males than in females. • The hormonal control of beggin...

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Bibliographic Details
Published in:General and comparative endocrinology 2014-08, Vol.204, p.95-103
Main Authors: Braasch, Alexander, Becker, Peter H, Groothuis, Ton G.G
Format: Article
Language:English
Subjects:
Aggression
Aggression - physiology
Animals
Begging behavior
Charadriiformes - physiology
Competitive Behavior
Corticosterone - blood
Dominance hierarchy
Endocrinology & Metabolism
Female
Hatching order
Male
Sibling rivalry
Siblings
Social Behavior
Testosterone - blood
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Summary:Highlights • We investigated the response of T and CORT to food competition in common tern chicks. • In siblings T was lower after intense food competition as compared to controls. • CORT was higher in siblings than in singletons, and higher in males than in females. • The hormonal control of begging and aggression may depend on the social context.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2014.05.007