10.5061/DRYAD.TH15B
Smith, Shona M.
University of Glasgow
Nager, Ruedi G.
University of Glasgow
Costantini, David
University of Antwerp
University of Glasgow
Data from: Meta-analysis indicates that oxidative stress is both a
constraint on and a cost of growth
Dryad
dataset
2017
life history theory
trade-offs
Reactive oxygen species
Oxidative damage
growth rate
2017-02-26T00:00:00Z
2017-02-26T00:00:00Z
en
https://doi.org/10.1002/ece3.2080
54981 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Oxidative stress (OS) as a proximate mechanism for life-history trade-offs
is widespread in the literature. One such resource allocation trade-off
involves growth rate, and theory suggests that OS might act as both a
constraint on and a cost of growth, yet studies investigating this have
produced conflicting results. Here, we use meta-analysis to investigate
whether increased OS levels impact on growth (OS as a constraint on
growth) and whether greater growth rates can increase OS (OS as a cost of
growth). The role of OS as a constraint on growth was supported by the
meta-analysis. Greater OS, in terms of either increased damage or reduced
levels of antioxidants, was associated with reduced growth although the
effect depended on the experimental manipulation used. Our results also
support an oxidative cost of growth, at least in terms of increased
oxidative damage, although faster growth was not associated with a change
in antioxidant levels. These findings that OS can act as a constraint on
growth support theoretical links between OS and animal life histories and
provide evidence for a growth–self-maintenance trade-off. Furthermore, the
apparent oxidative costs of growth imply individuals cannot alter this
trade-off when faced with enhanced growth. We offer a starting platform
for future research and recommend the use of oxidative damage biomarkers
in nonlethal tissue to investigate the growth–OS relationship further.
Data for constraint-MAData for conducting the constraint-MA investigating
the effects of OS on growth. Hedges' g values (the response variable
denoting whether groups of the same species that had been found to differ
in OS levels also had significantly different growth rates) and their
variances are given, as well as moderator details and sample size.SSmith
Eco&Evol_constraint-MA_data.xlsxData for cost-MAData for
conducting the cost-MA investigating the effects of growth on OS.
Hedges' g values (the response variable indicating if there was a
significant difference in OS between two groups of the same species that
had been found to differ phenotypically in growth rate) and their
variances are given, as well as moderator details and sample size.SSmith
Eco&Evol_cost-MA_data.xlsx