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Embryonic Developmental Patterns and Energy Expenditure Are Affected by Incubation Temperature in Wood Ducks (Aix sponsa)


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dc.contributorGary Hepp, heppgar@auburn.eduen_US
dc.creatorDuRant, S. E
dc.creatorHopkins, W. A.
dc.creatorHepp, G. R.
dc.date.accessioned2022-10-14T16:45:33Z
dc.date.available2022-10-14T16:45:33Z
dc.date.created2011
dc.identifier10.1086/661749en_US
dc.identifier.urihttps://www.jstor.org/stable/pdf/10.1086/661749.pdfen_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50407
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-475
dc.description.abstractRecent research in birds has demonstrated that incubation temperature influences a suite of traits important for hatchling development and survival. We explored a possible mechanism for the effects on hatchling quality by determining whether incubation temperature influences embryonic energy expenditure of wood ducks (Aix sponsa). Because avian embryos are ectothermic, we hypothesized that eggs incubated at higher temperatures would have greater energy expenditure at any given day of incubation. However, because eggs incubated at lower temperatures take longer to hatch than embryos incubated at higher temperatures, we hypothesized that the former would expend more energy during incubation. We incubated eggs at three temperatures (35.0, 35.9, and 37.0C) that fall within the range of temperatures of naturally incubated wood duck nests. We then measured the respiration of embryos every 3 d during incubation, immediately after ducks externally pipped, and immediately after hatching. As predicted, embryos incubated at the highest temperature had the highest metabolic rates on most days of incubation, and they exhibited faster rates of development. Yet, because of greater energy expended during the hatching process, embryos incubated at the lowest temperature expended 20%–37% more energy during incubation than did embryos incubated at the higher temperatures. Slower developmental rates and greater embryonic energy expenditure of embryos incubated at the lowest temperature could contribute to their poor physiological performance as ducklings compared with ducklings that hatch from eggs incubated at higher temperatures.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©2011 The Authors YEAR. ©University of Chicago Press YEAR. 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: Author(s): S. E. DuRant, W. A. Hopkins and G. R. Hepp Source: Physiological and Biochemical Zoology: Ecological and Evolutionary Approaches , Vol. 84, No. 5 (September/October 2011), pp. 451-457 Published by: The University of Chicago Press. Sponsored by the Division of Comparative Physiology and Biochemistry, Society for Integrative and Comparative Biologyen_US
dc.titleEmbryonic Developmental Patterns and Energy Expenditure Are Affected by Incubation Temperature in Wood Ducks (Aix sponsa)en_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume84en_US
dc.citation.issue5en_US
dc.citation.spage451en_US
dc.citation.epage457en_US
dc.description.statusPublisheden_US
dc.description.peerreviewyesen_US
dc.creator.alternateHepp, Gary R.

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