CADIC   02618
CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Temporal variation in insotopic composition of Magellanic penguin Spheniscus magellanicus at Martillo Island
Autor/es:
RICCIALDELLI LUCIANA; RAYA REY ANDREA; DODINO SAMANTA
Lugar:
Puerto Iguazu
Reunión:
Congreso; Ornithological Congress of the Americas; 2017
Institución organizadora:
RAO, CBO y AFO
Resumen:
Due to their restricted foraging range, flightless seabirds are ideal models to study the short-term variability in the trophic niche in response to food availability in changing environments. In order to estimate potential inter-annual variations in trophic niche of Magellanic penguins at Martillo Island (Beagle Channel, Argentina), we investigated short-term isotopic variations in d13C and d15N values on feathers collected during 5 seasons (2009, 2013-16) together with oceanographic conditions. We found that in 2009 both isotopic values were higher than those registered for the rest of the studied years(p