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Nest-dwelling ectoparasites reduce antioxidant defences in females and nestlings of a passerine: a field experiment

AutorLópez-Arrabé, Jimena ; Cantarero, Alejandro ; Pérez-Rodríguez, L.; Palma, Antonio; Alonso-Álvarez, Carlos ; González-Braojos, Sonia; Moreno Klemming, Juan
Palabras claveGlutathione
Antioxidant status
Oxidative stress
Pied flycatcher
Malondialdehyde
Fecha de publicaciónsep-2015
EditorSpringer
CitaciónOecologia 179(1): 29-41 (2015)
Resumen© 2015, Springer-Verlag Berlin Heidelberg. Ectoparasites may imply a cost in terms of oxidative stress provoked by inflammatory responses in hosts. Ectoparasites may also result in costs for nestlings and brooding females because of the direct loss of nutrients and reduced metabolic capacity resulting from parasite feeding activities. These responses may involve the production of reactive oxygen and nitrogen species that may induce oxidative damage in host tissues. Our goal was to examine the effect of ectoparasites in terms of oxidative stress for nestlings and adult females in a population of pied flycatchers Ficedula hypoleuca. We manipulated the entire nest ectoparasite community by reducing ectoparasite loads in some nests through a heating treatment and compared them with a control group of nests with natural loads. A marker of total antioxidant capacity (TAS) in plasma and total levels of glutathione (tGSH) in red blood cells as well as a marker of oxidative damage in plasma lipids (malondialdehyde; MDA) were assessed simultaneously. Levels of tGSH were higher in heat-treated nests than in controls for both females and nestlings. Higher TAS values were observed in females from heat-treated nests. In nestlings there was a negative correlation between TAS and MDA. Our study supports the hypothesis that ectoparasites expose cavity-nesting birds to an oxidative challenge. This could be paid for in the long term, ultimately compromising individual fitness.
DescripciónThe chapter III of the dissertation: López-Arrabé, Jimena. Physiological adaptations in the pied flycatcher (Ficedula hypoleuca): oxidative stress, reproduction and development (2017), reproduces the manuscript of: López-Arrabé, Jimena ; Cantarero, Alejandro ; Pérez-Rodríguez, L.; Palma, Antonio; Alonso-Alvarez, Carlos; González-Braojos, Sonia; Moreno Klemming, Juan. Nest-dwelling ectoparasites reduce antioxidant defences in females and nestlings of a passerine: a field experiment. Oecologia 179(1): 29-41 (2015). http://dx.doi.org/ 10.1007/s00442-015-3321-7. http://hdl.handle.net/10261/156386
El capítulo III de la tesis doctoral: López-Arrabé, Jimena. Physiological adaptations in the pied flycatcher (Ficedula hypoleuca): oxidative stress, reproduction and development (2017), reproduce la información del artículo: López-Arrabé, Jimena ; Cantarero, Alejandro ; Pérez-Rodríguez, L.; Palma, Antonio; Alonso-Alvarez, Carlos; González-Braojos, Sonia; Moreno Klemming, Juan. Nest-dwelling ectoparasites reduce antioxidant defences in females and nestlings of a passerine: a field experiment. Oecologia 179(1): 29-41 (2015). http://dx.doi.org/ 10.1007/s00442-015-3321-7. http://hdl.handle.net/10261/156386
URIhttp://hdl.handle.net/10261/156386
DOI10.1007/s00442-015-3321-7
Identificadoresdoi: 10.1007/s00442-015-3321-7
issn: 0029-8549
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