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dc.contributor.authorTattersall, Glenn J
dc.contributor.authorLeite, Cleo A.C.
dc.contributor.authorSanders, Colin E
dc.contributor.authorCadena, Viviana
dc.contributor.authorAndrade, Denis V
dc.contributor.authorAbe, Augusto S
dc.contributor.authorMilsom, William K
dc.date.accessioned2016-03-07T17:33:40Z
dc.date.available2016-03-07T17:33:40Z
dc.date.issued2016
dc.identifier.citationTattersall, G. J., Leite, C. C., Sanders, C. E., Cadena, V., Andrade, D. V., Abe, A. S., & Milsom, W. K. (2016). Seasonal reproductive endothermy in tegu lizards. Science Advances, 2(1), e1500951. doi:10.1126/sciadv.1500951en_US
dc.identifier.issn2375-2548
dc.identifier.urihttp://hdl.handle.net/10464/8608
dc.description.abstractWith some notable exceptions, small ectothermic vertebrates are incapable of endogenously sustaining a body temperature substantially above ambient temperature. This view was challenged by our observations of nighttime body temperatures sustained well above ambient (up to 10°C) during the reproductive season in tegu lizards (~2 kg). This led us to hypothesize that tegus have an enhanced capacity to augment heat production and heat conservation. Increased metabolic rates and decreased thermal conductance are the same mechanisms involved in body temperature regulation in those vertebrates traditionally acknowledged as “true endotherms” : the birds and mammals. The appreciation that a modern ectotherm the size of the earliest mammals can sustain an elevated body temperature through metabolic rates approaching that of endotherms enlightens the debate over endothermy origins, providing support for the parental care model of endothermy, but not for the assimilation capacity model of endothermy. It also indicates that, contrary to prevailing notions, ectotherms can engage in facultative endothermy, providing a physiological analog in the evolutionary transition to true endothermy.en_US
dc.language.isoenen_US
dc.subjectEvolutionen_US
dc.subjectLife sciencesen_US
dc.subjectanimal scienceen_US
dc.subjectbreeding seasonen_US
dc.subjectendothermyen_US
dc.subjectlizarden_US
dc.subjectparental careen_US
dc.subjectreptileen_US
dc.subjectthermogenesisen_US
dc.titleSeasonal reproductive endothermy in tegu lizardsen_US
dc.typeArticleen_US


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