2010
Is group size related to longevity in mammals?
Kamilar J, Bribiescas R, Bradley B. Is group size related to longevity in mammals? Biology Letters 2010, 6: 736-739. PMID: 20462887, PMCID: PMC3001368, DOI: 10.1098/rsbl.2010.0348.Peer-Reviewed Original ResearchConceptsMaximum longevityPhylogenetic comparative methodsCorrelate of longevityLife history theoryLower predation riskGroup sizeEvolutionary timeSpecies longevityExtrinsic mortalityLow basal metabolic rateOpen habitatsMammal speciesPredation riskLarger speciesGroup size effectShort lifespanSpeciesMammalsBasal metabolic rateSignificant group size effectLongevityMetabolic rateBody massHabitatsPredation
2008
Specific gravity as an alternative to creatinine for estimating urine concentration in captive and wild chimpanzee (Pan troglodytes) Samples
Anestis S, Breakey A, Beuerlein M, Bribiescas R. Specific gravity as an alternative to creatinine for estimating urine concentration in captive and wild chimpanzee (Pan troglodytes) Samples. American Journal Of Primatology 2008, 71: 130-135. PMID: 18973242, DOI: 10.1002/ajp.20631.Peer-Reviewed Original Research
2006
Age, rank, and personality effects on the cortisol sedation stress response in young chimpanzees
Anestis S, Bribiescas R, Hasselschwert D. Age, rank, and personality effects on the cortisol sedation stress response in young chimpanzees. Physiology & Behavior 2006, 89: 287-294. PMID: 16887152, DOI: 10.1016/j.physbeh.2006.06.010.Peer-Reviewed Original ResearchConceptsCortisol responseIndividual differencesPersonality effectsBaseline cortisolAge differencesYoung chimpanzeesAdolescent chimpanzeesPsychosocial stressorsStyle scoresRank-related differencesSedation measuresStress measuresCortisol changesStyle componentsHigher baseline levelsOlder individualsGreater stress responseIndividualsCortisol levelsYoung individualsPersonalityChimpanzeesMeasuresStress responseFuture studies
2005
Testosterone‐mediated immune functions and male life histories
Muehlenbein M, Bribiescas R. Testosterone‐mediated immune functions and male life histories. American Journal Of Human Biology 2005, 17: 527-558. PMID: 16136532, DOI: 10.1002/ajhb.20419.Peer-Reviewed Original ResearchConceptsMale life historyLife historyLife-history evolutionPrimate malesLife history theoryPotential selection pressuresHistory evolutionPhysiological ecologyReproductive effortNon-primate speciesSelection pressureEnergy allocation processHistory theoryHuman life history theoryMetabolic functionsEnergetic resourcesEvolutionary anthropologyImmune-endocrine interactionsPrimary hormoneNew insightsImportant forcePhysiological systemsVertebratesRecent advancesImmune function
2004
Rapid changes in chimpanzee (Pan troglodytes) urinary cortisol excretion
Anestis S, Bribiescas R. Rapid changes in chimpanzee (Pan troglodytes) urinary cortisol excretion. Hormones And Behavior 2004, 45: 209-213. PMID: 15047016, DOI: 10.1016/j.yhbeh.2003.09.015.Peer-Reviewed Original Research