Cristin-resultat-ID: 1101852
Sist endret: 16. oktober 2014, 10:40
NVI-rapporteringsår: 2014
Resultat
Vitenskapelig artikkel
2014

Corticosterone mediates carry-over effects between breeding and migration in the kittiwake Rissa tridactyla

Bidragsytere:
  • Jannik Schultner
  • Børge Moe
  • Olivier Chastel
  • Sabrina Tartu
  • Claus Bech og
  • Alexander S. Kitaysky

Tidsskrift

Marine Ecology Progress Series
ISSN 0171-8630
e-ISSN 1616-1599
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2014
Volum: 496
Sider: 125 - 133
Open Access

Importkilder

Scopus-ID: 2-s2.0-84893365148
Isi-ID: 000330356500010

Beskrivelse Beskrivelse

Tittel

Corticosterone mediates carry-over effects between breeding and migration in the kittiwake Rissa tridactyla

Sammendrag

Carry-over effects, i.e. when processes in one season influence processes in the next, are believed to have important effects on behavior and fitness in animals. Despite an increasing interest in the identification of carry-over effects, there are few experimental studies of the underlying mechanisms. We investigated how a short-term experimental elevation of the stress hormone corticosterone (CORT) during breeding influences the migratory behavior of black-legged kittiwakes Rissa tridactyla. We exposed chick-rearing kittiwakes to a 3 d elevation of CORT, which is usually secreted in response to food shortages. The migratory behavior of CORT-treated kittiwakes and a control group was then tracked using geolocators. We found that CORT treatment affected subsequent autumn migration in a sex-specific manner. CORT-treated females left the breeding grounds earlier and spent a longer period at the wintering grounds than control birds and CORT-treated males. The CORT treatment did not affect the timing of spring arrival or total length of migration. Our findings indicated that physiological stress incurred during breeding can carry over to affect key parameters of migratory behavior in autumn. Identifying carry-over mechanisms, such as those described here, is important to understand how performance and fitness in animals are determined by interactions between different parts of their life cycle.

Bidragsytere

Jannik Schultner

  • Tilknyttet:
    Forfatter
    ved University of Alaska Fairbanks
  • Tilknyttet:
    Forfatter
    ved Institutt for biologi ved Norges teknisk-naturvitenskapelige universitet

Børge Moe

  • Tilknyttet:
    Forfatter
    ved NINA terrestrisk økologi ved Norsk institutt for naturforskning

Olivier Chastel

  • Tilknyttet:
    Forfatter
    ved Centre d'Etudes Biologiques de Chizé CNRS

Sabrina Tartu

  • Tilknyttet:
    Forfatter
    ved Centre d'Etudes Biologiques de Chizé CNRS
Aktiv cristin-person

Claus Bech

  • Tilknyttet:
    Forfatter
    ved Institutt for biologi ved Norges teknisk-naturvitenskapelige universitet
1 - 5 av 6 | Neste | Siste »