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Seasonal Shifts in Reproduction Depend on Prey Availability for an Income Breeder


Metadata FieldValueLanguage
dc.contributorJoshua M. Hall; jmh0131@auburn.eduen_US
dc.creatorHall, Joshua M.
dc.creatorBuckelew, Andrew
dc.creatorLovern, Matthew
dc.creatorSecor, Stephen M.
dc.creatorWarner, Daniel A.
dc.date.accessioned2022-03-04T14:25:06Z
dc.date.available2022-03-04T14:25:06Z
dc.date.created2018
dc.identifier10.1086/700341en_US
dc.identifier.urihttps://www.journals.uchicago.edu/doi/full/10.1086/700341en_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50040
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-109
dc.description.abstractThe evolution of reproductive strategies depends on local environmental conditions. When environments are seasonal, selection favors individuals that align changes in key reproductive traits with seasonal shifts in habitat quality. Offspring habitat quality can decline through the season, and increased maternal provisioning to late-produced offspring may compensate. This shift, however, may depend on environmental factors that influence reproduction and are, themselves, subject to temporal changes (e.g., food abundance). We studied the brown anole lizard (Anolis sagrei) to demonstrate how prey abundance modifies seasonal changes in key reproductive traits. We bred lizards in controlled laboratory conditions across the reproductive season and manipulated the availability of food by providing some breeding pairs high prey availability and some low. Halfway through the season, we switched half of the breeding pairs to the opposite treatment. We measured growth of male and female lizards as well as latency to oviposit, fecundity, egg size, egg content (yolk, water, shell mass), and egg quality (steroid hormones, yolk caloric content) over this period. Higher prey availability enhanced lizard growth and some key reproductive traits (egg size, fecundity) but not others (egg content and quality). Moreover, we found that seasonal patterns of reproduction were modified by prey treatment in ways that have consequences for offspring survival. Our results demonstrate that seasonal changes in reproduction are dependent on fluctuations in local environmental conditions. Moreover, researchers must account for seasonal shifts in environmental factors and reproductive traits (and their interactions) when designing experiments and drawing conclusions about how the environment influences reproduction.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: Hall, J. M., Buckelew, A., Lovern, M., Secor, S. M., & Warner, D. A. (2018). Seasonal shifts in reproduction depend on prey availability for an income breeder. Physiological and Biochemical Zoology, 91(6), 1129-1147.en_US
dc.subjectAnolisen_US
dc.subjectanolis-sagreien_US
dc.subjectclutch sizeen_US
dc.subjectegg sizeen_US
dc.subjectfood supplementationen_US
dc.subjectgeographic-variationen_US
dc.subjectgrowth-ratesen_US
dc.subjectintraspecific variationen_US
dc.subjectlife-historyen_US
dc.subjectlife-history evolutionen_US
dc.subjectnatural-selectionen_US
dc.subjectnutritionen_US
dc.subjectoffspring body-sizeen_US
dc.subjectparental investmenten_US
dc.subjectreproductive efforten_US
dc.subjectseasonalityen_US
dc.subjecttrade-offsen_US
dc.titleSeasonal Shifts in Reproduction Depend on Prey Availability for an Income Breederen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume91en_US
dc.citation.issue6en_US
dc.citation.spage1129en_US
dc.citation.epage1147en_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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