Nest Temperatures Predict Nest Emergence of Painted Turtle (Chrysemys picta) Offspring

dc.contributor.author Murphy, Kaitlyn
dc.contributor.author Bodensteiner, Brooke
dc.contributor.author Delaney, David
dc.contributor.author Strickland, Jeramie
dc.contributor.author Janzen, Fredric
dc.contributor.department Department of Ecology, Evolution, and Organismal Biology (CALS)
dc.date 2020-07-01T18:47:33.000
dc.date.accessioned 2020-07-02T00:14:09Z
dc.date.available 2020-07-02T00:14:09Z
dc.date.issued 2020-06-01
dc.description.abstract <p>Environmental conditions during embryonic development affect morphology, behavior, and survival in turtles. Nest temperature also could affect posthatching traits of offspring, such as emergence behaviors. We monitored thermal conditions in painted turtle (<em>Chrysemys picta</em>) nests along the Mississippi River in Illinois to examine their influence on offspring survival and nest emergence. We recorded hourly temperatures within nest cavities during embryonic development in summer 2016 (<em>n</em> = 34) and after hatching through the following January (<em>n</em> = 15–20). Hatching success and posthatching survival appeared to be largely unaffected by thermal conditions recorded in nests. Emergence of neonates from nests was observed from 19 March through 12 May 2017. Onset of offspring emergence occurred later in the spring for nests with greater exposure to subzero temperatures in winter. For nearly all nests with live offspring, siblings did not emerge en masse, but instead departed the nest across multiple days. Nests with higher mean temperatures during incubation exhibited earlier mean emergence dates in spring, yet emergence duration was positively correlated with thermal maxima experienced in nests in fall and winter. Thus, thermal environments in nests at different times of year apparently elicited variation in spring emergence timing of <em>C. picta</em> hatchlings.</p>
dc.description.comments This article is published as Murphy, Kaitlyn M., Brooke L. Bodensteiner, David M. Delaney, Jeramie T. Strickland, and Fredric J. Janzen. "Nest Temperatures Predict Nest Emergence of Painted Turtle (Chrysemys picta) Offspring." <em>Chelonian Conservation and Biology</em> 19 (2020): 72-77. doi: <a href="https://doi.org/10.2744/CCB-1391.1" target="_blank">10.2744/CCB-1391.1</a>.
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/eeob_ag_pubs/409/
dc.identifier.articleid 1415
dc.identifier.contextkey 18331193
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath eeob_ag_pubs/409
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/75546
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/eeob_ag_pubs/409/2020_Janzen_NestTemperatures.pdf|||Sat Jan 15 00:09:03 UTC 2022
dc.source.uri 10.2744/CCB-1391.1
dc.subject.disciplines Behavior and Ethology
dc.subject.disciplines Climate
dc.subject.disciplines Ecology and Evolutionary Biology
dc.subject.disciplines Population Biology
dc.subject.keywords Chrysemys picta
dc.subject.keywords hatchlings
dc.subject.keywords nest emergence
dc.subject.keywords nest temperature
dc.subject.keywords overwintering
dc.subject.keywords painted turtle
dc.subject.keywords synchrony
dc.title Nest Temperatures Predict Nest Emergence of Painted Turtle (Chrysemys picta) Offspring
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 266cafbc-b90b-45b5-9c6d-d5914fff458b
relation.isOrgUnitOfPublication 6fa4d3a0-d4c9-4940-945f-9e5923aed691
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