Salivary Cortisol Reaction Norms in Zoo-Housed Great Apes: Diurnal Slopes and Intercepts as Indicators of Stress Response Quality by Verena Behringer, Jeroen M. G. Stevens, Ruth Sonnweber

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Urinary neopterin of wild chimpanzees indicates that cell-mediated immune activity varies by age, sex, and female reproductive status by Jacob D. Negrey, Verena Behringer, Kevin E. Langergraber, Tobias Deschner

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Evidence for adolescent length growth spurts in bonobos and other primates highlights the importance of scaling laws by Andreas Berghaenel, Jeroen MG Stevens, Gottfried Hohmann, Tobias Deschner, Verena Behringer

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Urinary Cortisol Increases During a Respiratory Outbreak in Wild Chimpanzees by Verena Behringer, Verena Behringer, Anna Preis, Doris F. Wu, Doris F. Wu, Catherine Crockford, Catherine Crockford, Fabian H. Leendertz, Roman M. Wittig, Roman M. Wittig, Tobias Deschner

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Cell-Mediated Immune Ontogeny Is Affected by Sex but Not Environmental Context in a Long-Lived Primate Species by Verena Behringer, Verena Behringer, Caroline Deimel, Jeroen M. G. Stevens, Melodie Kreyer, Melodie Kreyer, Sean M. Lee, Gottfried Hohmann, Barbara Fruth, Barbara Fruth, Barbara Fruth, Michael Heistermann

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Plasma Testosterone and Androstenedione Levels Follow the Same Sex-Specific Patterns in the Two <i>Pan</i> Species by Ruth Sonnweber, Jeroen M. G. Stevens, Gottfried Hohmann, Tobias Deschner, Verena Behringer

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Measurements of salivary alpha amylase and salivary cortisol in hominoid primates reveal within-species consistency and between-species differences. by Verena Behringer, Claudia Borchers, Tobias Deschner, Erich Möstl, Dieter Selzer, Gottfried Hohmann

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Transition to siblinghood causes a substantial and long-lasting increase in urinary cortisol levels in wild bonobos by Verena Behringer, Andreas Berghänel, Tobias Deschner, Sean M Lee, Barbara Fruth, Gottfried Hohmann

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Average phenotype but not plasticity in two metabolic hormones covary in wild female bonobos (Pan paniscus) by Ruth Sonnweber, Gottfried Hohmann, Gottfried Hohmann, Jeroen M. G. Stevens, Tobias Deschner, Tobias Deschner, Barbara Fruth, Barbara Fruth, Barbara Fruth, Anna-Lena Fiedler, Niina O. Nurmi, Verena Behringer, Verena Behringer

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Testing the effect of medical positive reinforcement training on salivary cortisol levels in bonobos and orangutans. by Verena Behringer, Jeroen M G Stevens, Gottfried Hohmann, Erich Möstl, Dieter Selzer, Tobias Deschner

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Sex-differences in age-related decline of urinary insulin-like growth factor-binding protein-3 levels in adult bonobos and chimpanzees by Verena Behringer, Stefan Wudy, Werner F. Blum, Jeroen M. G. Stevens, Thomas Remer, Christophe Boesch, Gottfried Hohmann

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Elevated neopterin levels in wild, healthy chimpanzees indicate constant investment in unspecific immune system by Verena Behringer, Jeroen M. G. Stevens, Roman M. Wittig, Catherine Crockford, Klaus Zuberbühler, Fabian H. Leendertz, Tobias Deschner

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The Steady State Great Ape? Long Term Isotopic Records Reveal the Effects of Season, Social Rank and Reproductive Status on Bonobo Feeding Behavior. by Vicky M Oelze, Pamela Heidi Douglas, Colleen R Stephens, Martin Surbeck, Verena Behringer, Michael P Richards, Barbara Fruth, Gottfried Hohmann

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Circadian Rhythms of Urinary Cortisol Levels Vary Between Individuals in Wild Male Chimpanzees: A Reaction Norm Approach by Ruth Sonnweber, Yimen G. Araya-Ajoy, Verena Behringer, Tobias Deschner, Patrick Tkaczynski, Pawel Fedurek, Anna Preis, Liran Samuni, Zinta Zommers, Cristina Gomes, Klaus Zuberbühler, Klaus Zuberbühler, Roman M. Wittig, Roman M. Wittig, Catherine Crockford, Catherine Crockford

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