Corticosterone levels of Atlantic puffins vary with breeding stage and sex but are not elevated in poor foraging years

Corticosterone levels of Atlantic puffins vary with breeding stage and sex but are not elevated in poor foraging years

Highlights ► We studied corticosterone of Atlantic puffins in years with differing prey abundance. ► Female puffins had higher corticosterone (CORT) levels than males. ► Puffins’ CORT levels were higher in pre-breeding than during chick-rearing. ► Puffins did not have higher CORT in years with low p...

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Veröffentlicht in:General and comparative endocrinology 2012-09, Vol.178 (2), p.408-416
Hauptverfasser: Rector, M.E, Kouwenberg, A.-L, Wilhelm, S.I, Robertson, G.J, McKay, D.W, Fitzsimmons, M.G, Baker, C.R, Cameron-MacMillan, M.L, Walsh, C.J, Storey, A.E
Format: Artikel
Sprache:eng
Schlagworte:
adults
Alcidae
Animals
Atlantic puffins
Breeding
Capelin
Charadriiformes - blood
Charadriiformes - metabolism
Charadriiformes - physiology
Chick growth
chicks
Corticosterone
Corticosterone - blood
data collection
egg production
Endocrinology & Metabolism
energy
Female
fish
forage
foraging
Foraging conditions
invertebrates
larvae
Male
males
Mallotus villosus
Parental investment
rearing
seabirds
Seasons
Sex Factors
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Beschreibung
Zusammenfassung:Highlights ► We studied corticosterone of Atlantic puffins in years with differing prey abundance. ► Female puffins had higher corticosterone (CORT) levels than males. ► Puffins’ CORT levels were higher in pre-breeding than during chick-rearing. ► Puffins did not have higher CORT in years with low prey abundance. ► A long chick-rearing period may allow puffins to forgo a costly CORT increase.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2012.06.008