Chimpanzee quiet hoo variants differ according to context

by Catherine Crockford, Thibaud Gruber, Klaus Zuberbühler
Published 2018-01-01

Group-level cooperation in chimpanzees is shaped by strong social ties

by Liran Samuni, Catherine Crockford, Roman M. Wittig
Published 2021-01-01

Urinary Cortisol, Aggression, Dominance and Competition in Wild, West African Male Chimpanzees

by Anna Preis, Anna Preis, Liran Samuni, Liran Samuni, Tobias Deschner, Catherine Crockford, Catherine Crockford, Roman M. Wittig, Roman M. Wittig
Published 2019-04-01

Single aggressive interactions increase urinary glucocorticoid levels in wild male chimpanzees.

by Roman M Wittig, Catherine Crockford, Anja Weltring, Tobias Deschner, Klaus Zuberbühler
Published 2015-01-01

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
Published 2020-08-01

Group dominance increases territory size and reduces neighbour pressure in wild chimpanzees

by Sylvain Lemoine, Christophe Boesch, Anna Preis, Liran Samuni, Catherine Crockford, Roman M. Wittig
Published 2020-05-01

Maternal effects on offspring growth indicate post-weaning juvenile dependence in chimpanzees (Pan troglodytes verus)

by Liran Samuni, Patrick Tkaczynski, Tobias Deschner, Therese Löhrrich, Roman M. Wittig, Catherine Crockford
Published 2020-01-01

Small Mirrors Do the Trick: A Simple, but Effective Method to Study Mirror Self-Recognition in Chimpanzees

by Kathrin S. Kopp, Sonja J. Ebel, Roman M. Wittig, Daniel B. M. Haun, Catherine Crockford
Published 2021-08-01

Social support reduces stress hormone levels in wild chimpanzees across stressful events and everyday affiliations

by Roman M. Wittig, Catherine Crockford, Anja Weltring, Kevin E. Langergraber, Tobias Deschner, Klaus Zuberbühler
Published 2016-11-01

Bystanders intervene to impede grooming in Western chimpanzees and sooty mangabeys

by Alexander Mielke, Liran Samuni, Anna Preis, Jan F. Gogarten, Catherine Crockford, Roman M. Wittig
Published 2017-01-01

Flexible decision-making in grooming partner choice in sooty mangabeys and chimpanzees

by Alexander Mielke, Anna Preis, Liran Samuni, Jan F. Gogarten, Roman M. Wittig, Catherine Crockford
Published 2018-01-01

Long-term repeatability in social behaviour suggests stable social phenotypes in wild chimpanzees

by Patrick J. Tkaczynski, Alexander Mielke, Liran Samuni, Anna Preis, Roman M. Wittig, Catherine Crockford
Published 2020-08-01

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
Published 2018-06-01

Consistency of Social Interactions in Sooty Mangabeys and Chimpanzees

by Alexander Mielke, Alexander Mielke, Anna Preis, Anna Preis, Liran Samuni, Liran Samuni, Jan F. Gogarten, Jan F. Gogarten, Jan F. Gogarten, Jan F. Gogarten, Jack D. Lester, Catherine Crockford, Catherine Crockford, Roman M. Wittig, Roman M. Wittig
Published 2021-01-01

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
Published 2019-05-01

Attractiveness of female sexual signaling predicts differences in female grouping patterns between bonobos and chimpanzees

by Martin Surbeck, Cédric Girard-Buttoz, Liran Samuni, Christophe Boesch, Barbara Fruth, Catherine Crockford, Roman M. Wittig, Gottfried Hohmann
Published 2021-09-01

Sex-specific association patterns in bonobos and chimpanzees reflect species differences in cooperation

by Martin Surbeck, Cédric Girard-Buttoz, Christophe Boesch, Catherine Crockford, Barbara Fruth, Gottfried Hohmann, Kevin E. Langergraber, Klaus Zuberbühler, Roman M. Wittig, Roger Mundry
Published 2017-01-01

Increased sensitivity and signal-to-noise ratio in diffusion-weighted MRI using multi-echo acquisitions

by Cornelius Eichner, Michael Paquette, Toralf Mildner, Torsten Schlumm, Kamilla Pléh, Liran Samuni, Catherine Crockford, Roman M. Wittig, Carsten Jäger, Harald E. Möller, Angela D. Friederici, Alfred Anwander
Published 2020-11-01

Early maternal loss leads to short- but not long-term effects on diurnal cortisol slopes in wild chimpanzees

by Cédric Girard-Buttoz, Patrick J Tkaczynski, Liran Samuni, Pawel Fedurek, Cristina Gomes, Therese Löhrich, Virgile Manin, Anna Preis, Prince F Valé, Tobias Deschner, Roman M Wittig, Catherine Crockford
Published 2021-06-01

The long lives of primates and the ‘invariant rate of ageing’ hypothesis

by Fernando Colchero, José Manuel Aburto, Elizabeth A. Archie, Christophe Boesch, Thomas Breuer, Fernando A. Campos, Anthony Collins, Dalia A. Conde, Marina Cords, Catherine Crockford, Melissa Emery Thompson, Linda M. Fedigan, Claudia Fichtel, Milou Groenenberg, Catherine Hobaiter, Peter M. Kappeler, Richard R. Lawler, Rebecca J. Lewis, Zarin P. Machanda, Marie L. Manguette, Martin N. Muller, Craig Packer, Richard J. Parnell, Susan Perry, Anne E. Pusey, Martha M. Robbins, Robert M. Seyfarth, Joan B. Silk, Johanna Staerk, Tara S. Stoinski, Emma J. Stokes, Karen B. Strier, Shirley C. Strum, Jenny Tung, Francisco Villavicencio, Roman M. Wittig, Richard W. Wrangham, Klaus Zuberbühler, James W. Vaupel, Susan C. Alberts
Published 2021-06-01