Habitat and year-to-year variation in haemoglobin concentration in nestling blue tits Cyanistes caeruleus.
Comp Biochem Physiol A Mol Integr Physiol
; 148(3): 572-7, 2007 Nov.
Article
en En
| MEDLINE
| ID: mdl-17826204
Nutrition during the time spent at the nest is critical for the development of the body condition in altricial birds, including nestling blue tits (Cyanistes caeruleus). Trophic conditions tend to be variable in time and space, which should influence the physiological condition of growing birds. In this paper, we consider haemoglobin concentration as a general indicator of chick physiological condition. Its variation is both consistent within broods and indicative/prognostic of survival from the moment of hatching to fledging. We show that haemoglobin concentration of nestling blue tits is on average higher in years and habitats characterised by rich abundance of caterpillars than under poor caterpillar availability. Haemoglobin seems to quite exactly reflect even relatively subtle differences in trophic conditions.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Estaciones del Año
/
Hemoglobinas
/
Adaptación Fisiológica
/
Ecosistema
/
Pájaros Cantores
/
Comportamiento de Nidificación
Tipo de estudio:
Prognostic_studies
Límite:
Animals
País/Región como asunto:
Europa
Idioma:
En
Revista:
Comp Biochem Physiol A Mol Integr Physiol
Asunto de la revista:
BIOLOGIA MOLECULAR
/
FISIOLOGIA
Año:
2007
Tipo del documento:
Article
País de afiliación:
Polonia
Pais de publicación:
Estados Unidos