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Survival is negatively associated with glucocorticoids in a wild ungulate neonate

Integrative Zoology 2021年第2期16卷 214-225页

作者： Tess Michelle GINGERY Duane Richard DIEFENBACH Catharine ElizabethPRITCHARD David Charles ENSMINGER Bret Daniel WALLINGFORD Christopher Scott ROSENBERRY pennsylvania Cooperative Fish and Wildlife Research Unit Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA U.S.Geological Survey Pennsylvania Cooperative Fish and Wildlife Research UnitPennsylvania State UniversityUniversity ParkPennsylvaniaUSA Department of Ecosystem Science and Management Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA pennsylvania game commission 2001 Elmerton AvenueHarrisburgPennsylvaniaUSA Department of Integrative Biology University of CaliforniaBerkeleyValley Life Sciences BuildingBerkeleyCaliforniaUSA

It is unknown how ungulate physiological responses to environmental perturbation influence overall population ***,neonatal physiological responses remain poorly studied despite the importance of neonatal survival to population ***(GC)hormones potentially facilitate critical physiological and behavioral responses to environmental ***,elevated GC concentrations over time may compromise body condition and indirectly reduce *** evaluated baseline salivary cortisol(CORT;a primary GC in mammals)concentrations in 19 wild neonatal white-tailed deer(Odocoileus virginianus)in a northern(NS)and southern(SS)area in *** ranking survival models consisting of variables hypothesized to influence neonate survival(***,sex),the probability of neonate survival was best explained by CORT concentrations,where elevated CORT concentrations were associated with reduced survival probability to 12 weeks of *** concentrations were greater in the SS where predation rates and predator densities were *** the first evaluation of baseline CORT concentrations in an ungulate neonate to our knowledge,this is also the first study to demonstrate CORT concentrations are negatively associated with ungulate survival at any life *** hormones could provide a framework in which to better understand susceptibility to mortality in neonatal white-tailed deer.

关键词： neonates salivary cortisol stress survival ungulates

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