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  Correlates of oxidative stress in wild kestrel nestlings (Falco tinnunculus)

Costantini, D., Casagrande, S., De Filippis, S., Brambilla, G., Fanfani, A., Tagliavini, J., et al. (2006). Correlates of oxidative stress in wild kestrel nestlings (Falco tinnunculus). Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology, 176(4), 329-337. doi:10.1007/s00360-005-0055-6.

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 Creators:
Costantini, David, Author
Casagrande, Stefania1, Author              
De Filippis, Stefania, Author
Brambilla, Gianfranco, Author
Fanfani, Alberto, Author
Tagliavini, James, Author
Dell'Omo, Giacomo, Author
Affiliations:
1University of Parma, ou_persistent22              

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Free keywords: animals antioxidants antioxidants metabolism birds birds physiology nesting behavior oxidative stress reactive oxygen species reactive oxygen species blood
 Abstract: The fitness of an organism can be affected by conditions experienced during early development. In light of the impact that oxidative stress can have on the health and ageing of a bird species, this study evaluated factors accounting for the variation in oxidative stress levels in nestlings of the Eurasian kestrel (Falco tinnunculus) by measuring the serum concentration of reactive oxygen metabolites and the serum antioxidant barrier against hypochlorite-induced oxidation. The ratio between these two variables was considered as an index of oxidative stress, with higher values meaning higher oxidative damage. Six-chick broods showed the highest level of oxidative stress, while no effect of sex was found. Age showed an inverse relationship with the oxidants and the levels of oxidative stress, with younger birds having higher levels. Hatching date, body condition, body mass and carotenoid concentration did not show any relationship with oxidants, antioxidants or degree of oxidative stress. These findings suggest that intrabrood sibling competition could play a role in determining oxidative stress, and that in carnivorous birds other antioxidant molecules could be more important than carotenoids to reduce oxidative stress.

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 Dates: 2006
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1007/s00360-005-0055-6
 Degree: -

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Title: Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology
  Other : J. Comp. Physiol. B-Biochem. Syst. Environ. Physiol.
Source Genre: Journal
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Publ. Info: Heidelberg : Springer-Verlag
Pages: - Volume / Issue: 176 (4) Sequence Number: - Start / End Page: 329 - 337 Identifier: ISSN: 0174-1578
CoNE: https://pure.mpg.de/cone/journals/resource/110992357305990