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dc.contributor.author Grunst, Andrea S.
dc.contributor.author Grunst, Melissa L.
dc.contributor.author Gonser, Rusty A.
dc.contributor.author Tuttle, Elaina M.
dc.coverage.spatial Eastern United States
dc.date.accessioned 2018-11-08T17:31:44Z
dc.date.available 2018-11-08T17:31:44Z
dc.date.issued 2018-11-11
dc.identifier doi:10.5061/dryad.6j4n154
dc.identifier.citation Grunst AS, Grunst ML, Gonser RA, Tuttle EM (2018) Developmental stress and telomere dynamics in a genetically polymorphic species. Journal of Evolutionary Biology, online in advance of print.
dc.identifier.uri http://hdl.handle.net/10255/dryad.197538
dc.description A central objective of evolutionary biology is understanding variation in life-history trajectories and aging rate, or senescence. Senescence can be affected by tradeoffs and behavioral strategies in adults, but may also be affected by developmental stress. Developmental stress can accelerate telomere degradation, with long-term longevity and fitness consequences. Little is known regarding whether variation in developmental stress and telomere dynamics contribute to patterns of senescence during adulthood. We investigated this question in the dimorphic white-throated sparrow (Zonotrichia albicollis), a species in which adults of the two morphs exhibit established differences in behavioral strategy and patterns of senescence, and also evaluated the relationship between oxidative stress and telomere length. Tan morph females, which exhibit high levels of unassisted parental care, display faster reproductive senescence than white females, and faster actuarial senescence than all of the other morph-sex classes. We hypothesized that high oxidative stress and telomere attrition in tan female nestlings could contribute to this pattern, since tan females are small and potentially at a competitive disadvantage even as nestlings. Nestlings that were smaller than nest mates had higher oxidative stress, and nestlings with high oxidative stress and fast growth rates displayed shorter telomeres. However, we found no consistent morph-sex differences in oxidative stress or telomere length. Results suggest that oxidative stress and fast growth contribute to developmental telomere attrition, with potential ramifications for adults, but that developmental oxidative stress and telomere dynamics do not account for morph-sex differences in senescence during adulthood.
dc.relation.haspart doi:10.5061/dryad.6j4n154/1
dc.relation.haspart doi:10.5061/dryad.6j4n154/2
dc.relation.isreferencedby doi:10.1111/jeb.13400
dc.subject Telomeres
dc.subject developmental stress
dc.subject genetic polymorphism
dc.subject disassortative mating
dc.subject white-throated sparrow
dc.title Data from: Developmental stress and telomere dynamics in a genetically polymorphic species
dc.type Article
dwc.ScientificName Zonotrichia albicollis
dc.contributor.correspondingAuthor Grunst, Andrea S.
prism.publicationName Journal of Evolutionary Biology

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Title Oxidative stress data for nestling white-throated sparrows
Downloaded 2 times
Description This data file contains levels of total antioxidant capacity (OXY), reactive oxygen metabolites (ROM), and oxidative stress (OS) measured in nestling white-throated sparrows (Zonotrichia albicollis). OS was calculated as: mM ROMs/mM TAC x 1000. Also provided are nestling morph (white (W) or tan (T)), nestling sex, day in the nestling stage, basic body measurements, growth rates, and the time and date of blood sampling.
Download WTSP OS data JEB, 2014-15.xlsx (146.8 Kb)
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Title Telomere data for nestling white-throated sparrows
Downloaded 1 time
Description This data file contains relative telomere length (RTL) data for nestling white-throated sparrows. Also included in the file are total antioxidant capacity (OXY), reactive oxygen metabolite (ROM), and oxidative stress (OS) levels. OS levels were calculated as: mM ROMs/mM OXY x 1000. In addition, we list nestling morph (white (W) or tan (T)), nestling sex, and nestling age (in days). Note that only 5 and 6 day old nestlings were used in our analysis, whereas some nestlings in this dataset were either younger or older. Basic body measurements and time and date of sampling are also given, along with information regarding each nestling's size rank within the brood. The largest nestling received size rank 1, and so forth until the brood size was reached.
Download WTSP Telomere data JEB, 2014-2015.xlsx (209.0 Kb)
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