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Thermal spikes from the urban heat island increase mortality and alter physiology of lizard embryos


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dc.contributorJoshua M. Hall; jmh0131@auburn.eduen_US
dc.creatorHall, Joshua M.
dc.creatorWarner, Daniel A.
dc.date.accessioned2022-03-13T14:47:34Z
dc.date.available2022-03-13T14:47:34Z
dc.date.created2018
dc.identifier10.1242/jeb.181552en_US
dc.identifier.urihttps://jeb.biologists.org/content/221/14/jeb181552.abstracten_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50051
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-120
dc.description.abstractEffects of global change (i.e. urbanization, climate change) on adult organisms are readily used to predict the persistence of populations. However, effects on embryo survival and patterns of development are less studied, even though embryos are particularly sensitive to abiotic conditions that are altered by global change (e.g. temperature). In reptiles, relatively warm incubation temperatures increase developmental rate and often enhance fitness-relevant phenotypes, but extremely high temperatures cause death. Due to the urban heat island effect, human-altered habitats (i.e. cities) potentially create unusually warm nest conditions that differ from adjacent natural areas in both mean and extreme temperatures. Such vanation may exert selection pressures on embryos. To address this, we measured soil temperatures in places where the Puerto Rican crested anole lizard (Anolis cristatellus) nests in both city and forest habitats. We bred anoles in the laboratory and subjected their eggs to five incubation treatments that mimicked temperature regimes from the field, three of which included brief exposure to extremely high temperatures (i.e. thermal spikes) measured in the city. We monitored growth and survival of hatchlings in the laboratory for 3 months and found that warmer, city temperatures increase developmental rate, but brief, thermal spikes reduce survival. Hatchling growth and survival were unaffected by incubation treatment. The urban landscape can potentially create selection pressures that influence organisms at early (e.g. embryo) and late life stages. Thus, research aimed at quantifying the impacts of urbanization on wildlife populations must include multiple life stages to gain a comprehensive understanding of this important aspect of global change.en_US
dc.formatPDFen_US
dc.publisherThe Company of Biologistsen_US
dc.relation.ispartofJournal of Experimental Biologyen_US
dc.relation.ispartofseries0022-0949en_US
dc.rightsThis is the version of record published by The Company of Biologists and is made available under the CC-BY 4.0 license. Item should be cited as: Hall, J. M., & Warner, D. A. (2018). Thermal spikes from the urban heat island increase mortality and alter physiology of lizard embryos. Journal of Experimental Biology, 221(14), jeb181552.en_US
dc.subjectanolisen_US
dc.subjectAnolisen_US
dc.subjectbody conditionen_US
dc.subjectconstanten_US
dc.subjectegg survivalen_US
dc.subjectEmbryonic developmenten_US
dc.subjectevolutionen_US
dc.subjectGlobal changeen_US
dc.subjectHeart rateen_US
dc.subjectpatternsen_US
dc.subjectphenotypesen_US
dc.subjectPlasticityen_US
dc.subjectresponsesen_US
dc.subjecttemperaturesen_US
dc.subjectThermal adaptationen_US
dc.subjecttoleranceen_US
dc.subjectUrbanizationen_US
dc.titleThermal spikes from the urban heat island increase mortality and alter physiology of lizard embryosen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume221en_US
dc.citation.issue14en_US
dc.citation.spagejeb181552en_US
dc.description.statusPublisheden_US
dc.description.peerreviewYesen_US
dc.creator.orcid0000-0002-5587-3402en_US
dc.creator.orcid0000-0001-7231-7785en_US

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