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Sex-Specific Effects of Incubation Temperature on Embryonic Development of Zebra Finch (Taeniopygia guttata) Embryos


Metadata FieldValueLanguage
dc.contributorHaruka Wada; haruka@auburn.eduen_US
dc.creatorGurley, Bain
dc.creatorFinger, John W.
dc.creatorWada, Haruka
dc.date.accessioned2022-03-04T14:19:29Z
dc.date.available2022-03-04T14:19:29Z
dc.date.created2018
dc.identifier10.1086/699741en_US
dc.identifier.urihttps://www.journals.uchicago.edu/doi/full/10.1086/699741en_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50039
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-108
dc.description.abstractIn oviparous species, the embryonic environmentparticularly temperaturecan alter phenotype and survival of an individual by affecting its size as well as its metabolic rate. Previous studies have shown that incubation temperatures can affect sex ratio in birds; specifically, low incubation temperatures were shown to produce a male-biased sex ratio in zebra finches (Taeniopygia guttata) possibly because of a higher pre- or postnatal mortality rate in females. We hypothesized that sexes respond differently to suboptimal incubation temperature, leading to a male-biased sex ratio. To test this hypothesis, zebra finch eggs were incubated at 36.1 degrees, 37.5 degrees, or 38.5 degrees C and hatching success, hatchling mass, residual yolk mass, and pectoralis mass were measured. We found that while hatchling mass was similar between the sexes at 37.5 degrees C, female hatchlings were heavier at 36.1 degrees C, and male hatchlings were heavier at 38.5 degrees C. Pectoralis muscle mass was similar between the sexes at 36.1 degrees C; however, at 37.5 degrees C, female pectoralis mass was heavier at hatching than that of males. Females at 37.5 degrees C also had lower residual yolk at hatching compared with males, reflecting a higher use of energy by female embryos compared with male embryos at this temperature. In contrast, residual yolk was similar between the sexes at 36.1 degrees and 38.5 degrees C. Our results suggest that there are sex differences in how incubation temperature alters organ mass and yolk energy reserve; this can lead to a difference in survival at different incubation temperatures between the sexes. Taken together with previous studies showing that females alter incubation behavior with ambient temperature, rising ambient temperatures could impact phenotype and survival of avian offspring in a sex-specific manner.en_US
dc.formatPDFen_US
dc.publisherUniversity of Chicago Pressen_US
dc.relation.ispartofPhysiological and Biochemical Zoologyen_US
dc.relation.ispartofseries1522-2152en_US
dc.rights©The Authors 2018. ©University of Chicago Press 2018. This is this the version of record published by the University of Chicago Press. It is made available under the CC-BY-NC-ND 4.0 license. Item should be cited as: Gurley, B., Finger Jr, J. W., & Wada, H. (2018). Sex-specific effects of incubation temperature on embryonic development of Zebra Finch (Taeniopygia guttata) embryos. Physiological and Biochemical Zoology, 91(5), 1036-1045.en_US
dc.subjectaltricialen_US
dc.subjectartificial incubationen_US
dc.subjectbirden_US
dc.subjectbody-sizeen_US
dc.subjectbrood sizeen_US
dc.subjectducks aix-sponsaen_US
dc.subjectegg temperatureen_US
dc.subjectgrowthen_US
dc.subjectmaternal conditionen_US
dc.subjectmetabolic-rateen_US
dc.subjectpectoralis massen_US
dc.subjectprecocial birden_US
dc.subjectresidual yolk massen_US
dc.subjectsex differenceen_US
dc.subjectsex ratioen_US
dc.subjecttree swallowsen_US
dc.subjectwood ducksen_US
dc.titleSex-Specific Effects of Incubation Temperature on Embryonic Development of Zebra Finch (Taeniopygia guttata) Embryosen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume91en_US
dc.citation.issue5en_US
dc.citation.spage1036en_US
dc.citation.epage1045en_US
dc.description.statusPublisheden_US
dc.description.peerreviewYesen_US
dc.creator.orcid0000-0001-7436-8367en_US

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