Consistent measures of oxidative balance predict survival but not reproduction in a long-distance migrant ...
1. Physiological processes, including those that disrupt oxidative balance, have been proposed as key to understanding fundamental life history trade-offs. Yet examination of changes in oxidative balance within wild animals across time, space and major life history challenges remain uncommon. For ex...
| Main Authors: | , , , , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2020
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.70rxwdbtv https://datadryad.org/stash/dataset/doi:10.5061/dryad.70rxwdbtv |
| Summary: | 1. Physiological processes, including those that disrupt oxidative balance, have been proposed as key to understanding fundamental life history trade-offs. Yet examination of changes in oxidative balance within wild animals across time, space and major life history challenges remain uncommon. For example, migration presents substantial physiological challenges for individuals, and data on migratory individuals would provide crucial context for exposing the importance of relationships between oxidative balance and fitness outcomes. 2. Here we examined the consistency of commonly used measures of oxidative balance in longitudinally sampled free-living individuals of a long-lived, long-distance migrant, the Brent goose Branta bernicla hrota over periods of months to years. 3. Although inter-individual and temporal variation in measures of oxidative balance were substantial, we found high consistency in measures of lipid peroxidation and circulating non-enzymatic antioxidants in longitudinally sampled ... : Live capture of wild brent geese using cannon nets on wintering and staging grounds. Blood sampling from tarsal vein - each sample centrifuged and flash frozen in the field. Samples maintained at -80 prior to analysis. Aliquots of plasma assayed for malondialdehyde, super oxide dismutase, total antioxidant and uric acid concenrations. ... |
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