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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Physiological conditions of parent and offspring Black-browed Albatrosses Thalassarche melanophris (2017)
Auteurs :	Miguel Ferrer, Auteur ; Virginia Morandini, Auteur ; Lynelle Perry, Auteur ; Marc Bechard, Auteur
Type de document :	Article
Dans :	Bird Study (64(2) April 3, 2017)
Article en page(s) :	187-194
Résumé :	Capsule: In Black-browed Albatrosses Thalassarche melanophris nutritional condition is correlated between parents and their offspring.Aims: To test resource allocation hypotheses analysing the relationship between parental and offspring nutritional condition.Methods: We measured blood chemistry parameters related with nutritional condition in 24 parents and their nestlings in a colony of Black-browed Albatrosses.Results: There were no significant differences in blood parameters between sexes or location of the nest within the colony, neither among adults nor among nestlings. We found a significant positive correlation between parents and the nutritional condition of their offspring, measured as urea, uric acid and beta-hydroxybutyrate concentrations in blood.Discussion: These relationships demonstrate that condition of the young seems to be merely a reflection of parental condition. An interesting relationship between alkaline phosphatase concentration in adults and nutritional condition of their nestlings was found, suggesting that age of the parents would be a key factor explaining quality of the nestling.
En ligne :	http://www.tandfonline.com/doi/full/10.1080/00063657.2017.1314447

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