Nestling erythrocyte resistance to oxidative stress predicts fledging success but not local recruitment in a wild bird.
Biol Lett
; 9(1): 20120888, 2013 Feb 23.
Article
em En
| MEDLINE
| ID: mdl-23097463
ABSTRACT
Stressful conditions experienced by individuals during their early development have long-term consequences on various life-history traits such as survival until first reproduction. Oxidative stress has been shown to affect various fitness-related traits and to influence key evolutionary trade-offs but whether an individual's ability to resist oxidative stress in early life affects its survival has rarely been tested. In the present study, we used four years of data obtained from a free-living great tit population (Parus major; n = 1658 offspring) to test whether pre-fledging resistance to oxidative stress, measured as erythrocyte resistance to oxidative stress and oxidative damage to lipids, predicted fledging success and local recruitment. Fledging success and local recruitment, both major correlates of survival, were primarily influenced by offspring body mass prior to fledging. We found that pre-fledging erythrocyte resistance to oxidative stress predicted fledging success, suggesting that individual resistance to oxidative stress is related to short-term survival. However, local recruitment was not influenced by pre-fledging erythrocyte resistance to oxidative stress or oxidative damage. Our results suggest that an individual ability to resist oxidative stress at the offspring stage predicts short-term survival but does not influence survival later in life.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Reprodução
/
Estresse Oxidativo
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Aves Canoras
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Eritrócitos
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Malondialdeído
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
País como assunto:
Europa
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article