10.5061/DRYAD.DJ3V1
Romero Haro, Ana Angela
Institute for Game and Wildlife Research
Sorci, Gabriele
French National Centre for Scientific Research
Alonso-Alvarez, Carlos
Museo Nacional de Ciencias Naturales
Romero-Haro, A. A.
Institute for Game and Wildlife Research
Data from: The oxidative cost of reproduction depends on early development
oxidative stress and sex in a bird species
Dryad
dataset
2016
environmental matching
the cost of reproduction
life history trade-offs
Early development conditions
predictive adaptive response
2016-06-08T14:15:28Z
2016-06-08T14:15:28Z
en
https://doi.org/10.1098/rspb.2016.0842
118113 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
In the early 2000’s, a new component of the cost of reproduction was
proposed: oxidative stress. Since then the oxidative cost of reproduction
hypothesis has, however, received mixed support. Different arguments have
been provided to explain this. Among them, the lack of a life history
perspective on most experimental tests was suggested. We manipulated the
levels of a key intracellular antioxidant (glutathione) in captive zebra
finches (Taeniopygia guttata) during a short period of early life and
subsequently tested the oxidative cost of reproduction. Birds were allowed
to mate freely in an outdoor aviary during several months. We repeatedly
enlarged or reduced their broods to increase or reduce, respectively,
breeding effort. Birds whose glutathione levels were reduced during growth
showed higher erythrocyte resistance to free radical-induced hemolysis
when forced to rear enlarged broods. This supports the hypothesis
predicting the occurrence of developing programs matching early and adult
environmental conditions to improve fitness. Moreover, adult males rearing
enlarged broods endured higher plasma levels of lipid oxidative damage
than control males, whereas adult females showed the opposite trend. Since
most previous studies reporting non-significant or opposite results used
females only, we also discuss some sex-related particularities that may
contribute to explain unexpected results.
@REPOSITORY Romero-Haro et al. The oxidative cost of reproduction depends
on early development oxidative stress and sex inDatafile for the
manuscript: The oxidative cost of reproduction depends on early
development oxidative stress and sex in a bird species